FINAL DRAFT EUROPEAN STANDARD prEN 13476-1 … for pipes fittings and... · NORME EUROPÉENNE...

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

FINAL DRAFTprEN 13476-1

September 2002

ICS 93.030

English version

Plastics piping systems for non-pressure underground drainageand sewerage - Structured-wall piping systems of unplasticized

poly(vinyl chloride) (PVC-U), polypropylene (PP) andpolyethylene (PE) - Part 1: Specifications for pipes, fittings and

the system

Systèmes de canalisations en plastique pour lesbranchements et les collecteurs d'assainissement sanspression enterrés - Systèmes de canalisations à parois

structurées en poly(chlorure de vinyle) non plastifié (PVC-U), polypropylène (PP) et polyéthylène (PE) - Partie 1:

Spécifications pour tubes, raccords et le système

Kunststoff-Rohrleitunggssysteme für erdverlegteAbwasserkanäle und -leitungen - Rohrleitungssysteme mit

strukturierter Wandung aus weichmacherfreiemPolyvinylchlorid (PVC-U), Polypropylen (PP) und

Polyethylen (PE) - Teil 1: Anforderungen an Rohre,Formstücke und das Rohrleitungssystem

This draft European Standard is submitted to CEN members for formal vote. It has been drawn up by the Technical Committee CEN/TC155.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations whichstipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other languagemade by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the samestatus as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice andshall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATIONC OM ITÉ EUR OP ÉEN DE NOR M ALIS AT IONEUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2002 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.

Ref. No. prEN 13476-1:2002 E

DIN

NAW V 28/UA 6 N 0020 (E)

prEN 13476-1:2002 (E)

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ContentsForeword....................................................................................................................... ...............................................4

1 Scope......................................................................................................................... ...........................................5

2 Normative references.......................................................................................................... ................................5

3 Terms, definitions, symbols and abbreviations................................................................................. ..............73.1 Terms and definitions.........................................................................................................................................7

3.2 Symbols..............................................................................................................................................................9

3.3 Abbreviations....................................................................................................................................................10

4 Material ...................................................................................................................... .........................................114.1 General.............................................................................................................................................................11

4.2 Unplasticized poly(vinyl chloride) (PVC-U) ......................................................................................................11

4.3 Polypropylene (PP) ..........................................................................................................................................11

4.4 Polyethylene (PE) ............................................................................................................................................13

4.5 Sealing ring retaining components...................................................................................................................14

4.6 Sealing rings.....................................................................................................................................................14

4.7 Adhesives for PVC-U .......................................................................................................................................14

4.8 Fused or welded joints .....................................................................................................................................15

5 Designation of wall constructions and examples of typical jointing methods...........................................155.1 Wall constructions designated as type A .........................................................................................................15

5.2 Wall constructions designated as type B .........................................................................................................16

5.3 Designation and design of joints ......................................................................................................................18

6 General characteristics for pipes and fittings................................................................................ ................186.1 Appearance......................................................................................................................................................18

6.2 Colour...............................................................................................................................................................18

7 Geometrical characteristics ................................................................................................... ..........................187.1 General.............................................................................................................................................................18

7.2 Dimensions.......................................................................................................................................................19

7.3 Types of fittings ................................................................................................................................................25

8 Physical characteristics ...................................................................................................... .............................288.1 Unplastisized poly(vinyl chloride) (PVC-U) .....................................................................................................28

8.2 Polypropylene (PP) ..........................................................................................................................................29

8.3 Polyethylene (PE) ............................................................................................................................................30

9 Mechanical characteristics.................................................................................................... ...........................319.1 Mechanical characteristics of pipes .................................................................................................................31

9.2 Additional requirements ...................................................................................................................................33

9.3 Mechanical characteristics of fittings ...............................................................................................................33

10 Performance requirements ..................................................................................................... .........................34

11 Marking...................................................................................................................... .........................................3611.1 General.............................................................................................................................................................36

11.2 Minimum required marking...............................................................................................................................36

11.3 Additional marking............................................................................................................................................38

Annex A (normative) Virgin PVC-U material .......................................................................................................... .39

Annex B (normative) Utilisation of non-virgin PVC-U material .............................................................................40B.1 Reprocessable and recyclable material from pipes and fittings.......................................................................40

B.2 External reprocessable and recyclable materials with agreed specification....................................................40

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B.3 External reprocessable and recyclable materials not covered by an agreed specification .............................42

Annex C (normative) Virgin PP material ............................................................................................................. .....44

Annex D (normative) Utilisation of non-virgin PP material....................................................................................45D.1 Reprocessable and recyclable material from pipes and fittings ......................................................................45

D.2 External reprocessable and recyclable materials with an agreed specification ..............................................45

D.3 External reprocessable and recyclable materials not covered by an agreed specification .............................46

Annex E (normative) Virgin PE material ............................................................................................................. ....48

Annex F (normative) Utilisation of non-virgin PE material ...................................................................................49F.1 Reprocessable and recyclable material from pipes and fittings ......................................................................49

F.2 External reprocessable and recyclable materials with an agreed specification ..............................................49

F.3 External reprocessable and recyclable materials not covered by an agreed specification .............................50

F.4 External reprocessable and recyclable material from PE rotational-moulded fittings and other components 51

Annex G (informative) Characteristics of PVC-U, PP and PE pipes and fittings ................................................52G.1 General ............................................................................................................................................................52

G.2 Material characteristics ....................................................................................................................................52

G.3 Chemical resistance.........................................................................................................................................52

G.4 Abrasion resistance..........................................................................................................................................52

G.5 Hydraulic roughness ........................................................................................................................................52

G.6 Diametric deflection..........................................................................................................................................52

Annex H (informative) Survey of possible use of reprocessable and recyclable material................................53

Bibliography ................................................................................................................... ...........................................54

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Foreword

This document prEN 13476-1:2002 has been prepared by Technical Committee CEN/TC 155 “Plastics pipingsystems and ducting systems", the secretariat of which is held by NEN.

This document is currently submitted to the Formal Vote.

This standard is a Part of a System Standard for plastics piping systems of particular materials for a specifiedapplication. There are a number of such System Standards.

System Standards are based on the results of the work being undertaken in ISO/TC 138 “Plastics pipes, fittingsand valves for the transport of fluids”, which is a Technical Committee of the International Organization forStandardization (ISO).

They are supported by separate standards on test methods to which references are made throughout the SystemStandard.

The System Standards are consistent with general standards on functional requirements and on recommendedpractice for installation.

prEN 13476 consists of the following Parts under the general title Plastics piping systems for non-pressureunderground drainage and sewerage - Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE)

– Part 1: Specifications for pipes, fittings and the system (this standard);

– Part 2: Guidance for the assessment of conformity (CEN/TS);

– Part 3: Guidance for installation. (CEN/TS).

This Part of prEN 13476 includes the following:

– Annex A: (normative) Virgin PVC-U material;

– Annex B: (normative) Utilisation of non-virgin PVC-U material;

– Annex C: (normative) Virgin PP material;

– Annex D: (normative) Utilisation of non-virgin PP material;

– Annex E: (normative) Virgin PE material;

– Annex F: (normative) Utilisation of non-virgin PE material;

– Annex G: (informative) Characteristics of PVC-U, PP and PE pipes and fittings;

– Annex H: (informative) Survey of possible use of reprocessable and recyclable materials;

– Bibliography.

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1 Scope

This European Standard specifies the definitions and requirements for pipes, fittings and the system ofunplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall pipingsystems in the field of non-pressure underground drainage and sewerage.

It also specifies test parameters for the test methods referred to in this standard.

This standard is applicable to:

a) structured-wall pipes and fittings, which are intended to be used buried in ground outside the building structureonly; reflected in the marking of products by “U”;

b) structured-wall pipes and fittings, which are intended to be used buried in ground both outside (application areacode “U”) and within the building structure (application area code “D”); reflected in the marking of products by “UD”.

This standard covers a range of pipe and fitting sizes, stiffness classes and impact levels and givesrecommendations concerning colours.

NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account theirparticular requirements and any relevant national regulations and installation practices or codes.

In conjunction with prCEN/TS 13476-2 and prCEN/TS 13476-3 (see Foreword), it is applicable to PVC-U, PP andPE structured-wall pipes and fittings, to their joints and to joints with components of other plastics and non-plasticsmaterials intended to be used for buried piping systems for the transport of foul sewage.

It is applicable to PVC-U, PP and PE structured-wall pipes and fittings with or without an integral socket withelastomeric ring seal joints as well as welded and fused joints.

NOTE 2 Pipes, fittings and other components conforming to any plastics product standards referred to in clause 2 can be used with pipesand fittings conforming to this standard, when they conform to the requirements for joint dimensions given in clause 7 and to the performancerequirements given in clause 10.

Test methods and requirements for resistance to cleaning operations are not included in this standard.

2 Normative references

This European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to apply (including amendments).

EN 476, General requirements for components used in discharge pipes, drains and sewers for gravity systems.

EN 580, Plastics piping systems Unplasticized poly (vinyl chloride) (PVC-U) pipes Test method for theresistance to dichloromethane at a specified temperature (DCMT).

EN 681-1, Elastomeric seals Materials requirements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber.

EN 681-2, Elastomeric seals Materials requirements for pipe joint seals used in water and drainage applications Part 2: Thermoplastic elastomers.

EN 681-4, Elastomeric seals Materials requirements for pipe joint seals used in water and drainage applications Part 4: Cast polyurethane sealing elements.

EN 727, Plastics piping and ducting systems Thermoplastics pipes and fittings Determination of Vicatsoftening temperature (VST).

EN 728, Plastics piping and ducting systems Polyolefin pipes and fittings Determination of oxidationinduction time.

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EN 743:1994, Plastics piping and ducting systems Thermoplastics pipes Determination of the longitudinalreversion.

EN 744, Plastics piping and ducting systems Thermoplastics pipes Test method for resistance to externalblows by the round-the-clock method.

EN 763:1994, Plastics piping and ducting systems Injection-moulded thermoplastics fittings Test method forvisually assessing effects of heating.

EN 921, Plastics piping systems Thermoplastics pipes Determination of resistance to internal pressure atconstant temperature.

EN 922, Plastics piping and ducting systems Pipes and fittings of unplasticized poly(vinyl chloride) (PVC-U) Specimen preparation for determination of the viscosity number and calculation of the K-value.

EN 1053, Plastics piping systems Thermoplastics piping systems for non-pressure applications Test methodfor water tightness.

EN 1055:1996, Plastics piping systems Thermoplastics piping systems for soil and waste discharge insidebuildings Test method for resistance to elevated temperature cycling.

prEN 1277:2002, Plastics piping systems Thermoplastics piping systems for buried non-pressure applications Test method for leaktightness of elastomeric sealing ring type joints (revision of EN 1277:1996).

EN 1401-1, Plastics piping systems for non-pressure underground drainage and sewerage Unplasticized poly(vinyl chloride) (PVC-U) Part 1: Specifications for pipes, fittings and the system.

EN 1411, Plastics piping and ducting systems Thermoplastics pipes Determination of resistance to externalblows by the staircase method.

prEN 1437:1994, Plastics piping systems Piping systems for underground drainage and sewerage Testmethod for resistance to combined temperature cycling and external loading.

EN 1446, Plastics piping and ducting systems Thermoplastics pipes Determination of ring flexibility.

EN 1852-1, Plastics piping systems for non-pressure underground drainage and sewerage Polypropylene (PP) Part 1: Specifications for pipes, fittings and the system.

EN 1905, Plastics piping systems Unplasticized poly(vinyl chloride) (PVC-U) pipes, fittings, and material —Method for assessment of the PVC content based on total chlorine content.

EN 1979, Plastics piping and ducting systems Thermoplastics spirally-formed structured-wall pipes Determination of the tensile strength of a seam.

EN 1989, Thermoplastics piping systems Joints for buried non-pressure sewerage applications Test methodfor long-term sealing performance of joints with thermoplastic elastomer (TPE) seals by estimating the sealingpressure.

EN 10204:1991, Metallic products Types of inspection documents.

EN 12061, Plastics piping systems Thermoplastics fittings Test method for impact resistance.

EN 12256, Plastics piping systems Thermoplastics fittings Test method for mechanical strength or flexibilityof fabricated fittings.

prEN 12666-1, Plastics piping systems for non-pressure underground drainage and sewerage Polyethylene(PE) Part 1: Specifications for pipes, fittings and the system.

EN ISO 472:200188, Plastics Vocabulary (ISO 472:1999).

EN ISO 527-2, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusionplastics (ISO 527-2:1993 including Corr 1:1994).

EN ISO 1043-1:1999, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their specialcharacteristics (ISO 1043-1:1997).

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EN ISO 1133:1999, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume flow-rate(MVR) of thermoplastics (ISO 1133:1997).

prEN ISO 3126, Plastics piping systems Plastics piping components Measurement and determination ofdimensions (ISO/DIS 3126:1999).

EN ISO 3451-1, Plastics- Determination of ash Part 1: General methods (ISO 3451-1:1997).

EN ISO 4599, Plastics Determination of resistance to environmental stress cracking (ESC) Bent strip method(ISO 4599:1986).

EN ISO 9967, Plastics pipes Determination of creep ratio (ISO 9967:1994).

EN ISO 9969, Thermoplastics pipes Determination of ring stiffness (ISO 9969:1994).

ISO 1183, Plastics Methods for determining the density and relative density of non-cellular plastics.

ISO 11922-1:1997, Thermoplastics pipes for the conveyance of fluids Dimensions and tolerances Part 1:Metric series.

ISO 12091, Structured-wall thermoplastics pipes Oven test.

ISO 13967, Thermoplastics fittings Determination of ring stiffness.

3 Terms, definitions, symbols and abbreviations

For the purposes of this European Standard, the following terms, definitions, symbols and abbreviations apply.

3.1 Terms and definitions

In addition to the terms and definitions given below, the terms and definitions given in EN ISO 472:2001, ENISO 1043-1:1999 and ISO 11922-1:1997 apply.

3.1.1 General terms and definitions

3.1.1.1application area codecode used in the marking of pipes and fittings to indicate the permitted application area(s) for which they areintended, as follows:

U: code for the area more than 1 m from the building to which the buried piping system is connected;

D: code for the area under and within 1 m from the building where the pipes and fittings are buried underground

and are connected to the soil and waste discharge system of the building.

NOTE In the D application area, the existence of hot water discharge in addition to external forces from the surroundings is usual.

3.1.1.2structured-wall pipes and fittingsproducts, which have an optimised design with regard to material usage to achieve the physical, mechanical andperformance requirements of this standard

NOTE For description of the particular designs covered by this standard see clause 5.

3.1.1.3fabricated fittingfitting manufactured by heat forming and/or joining more than one piece of pipe and/or moulded component

NOTE Sealing ring retaining components are not considered as a piece

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3.1.2 Geometrical terms and definitions

3.1.2.1nominal size DNnumerical designation of the size of a component, other than a component designated by thread size, which isapproximately equal to the manufacturing dimension in millimetres

3.1.2.1.1nominal size DN/ODnominal size, related to the outside diameter

3.1.2.1.2nominal size DN/IDnominal size, related to the inside diameter

3.1.2.2nominal diameter ( dn)the specified diameter, in millimetres, assigned to a nominal size (DN/OD or DN/ID)

3.1.2.3outside diameter ( de)value of the measurement of the outside diameter through its cross-section at any point of a pipe or spigot,rounded to the next greater 0,1 mm

NOTE For type B constructions, see Figure 4.

3.1.2.4mean outside diameter ( dem)value of the measurement of the outer circumference of a pipe or spigot in any cross-section divided by π (= 3,142),rounded to the next greater 0,1 mm

NOTE For type B constructions, see Figure 4.

3.1.2.5mean inside diameter ( dim)average value of a number of equally spaced measurements of inside diameter in the same cross-section of a pipeor fitting

3.1.2.6mean inside diameter of a socket ( Dim,min )average value of equally spaced measurements of inside diameter in the same cross-section of a socket

3.1.2.7wall thickness ( e)measured wall thickness at any point of the body of a component

3.1.2.8construction height ( ec)radial distance between the top of ribs or corrugation or, in case of type A1 and A2 pipes and fittings, the outsidesurface of the wall and the inside surface of the wall

3.1.2.9wall thickness of the inside layer (waterway wall thickness) ( e4)a) for type A1: thickness at any point of the inner layer of a pipe or fitting (see Figure 1)b) for type B: thickness at any point of the wall between the ribs or corrugations of the pipe or fitting (see Figure 4)

3.1.2.10wall thickness of the inside layer under a hollow section ( e5)thickness at any point of the inside wall between a hollow section and the inside surface of the type A2 or B pipe orfitting (see Figure 2 and 4)

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3.1.2.11minimum length of spigot ( L1,min )minimum permitted value for the length of a spigot of a pipe or fitting

3.1.2.12nominal ring stiffness (SN)numerical designation of the ring stiffness of the pipe or fitting which is a convenient round number, indicating theminimum required ring stiffness of the pipe or stiffness of the fitting

3.1.2.13fitting stiffnessmechanical characteristic of a fitting which is a measure of the resistance to ring deflection under an external forceas determined in accordance with ISO 13967

3.1.3 Material terms and definitions

3.1.3.1virgin materialmaterial in form such as granules or powder that have not been subjected to use or processing other than thatrequired for their manufacture and to which no reprocessable or recyclable materials have been added

3.1.3.2own reprocessable materialmaterial prepared from rejected unused pipes or fittings, including trimmings from the production of pipes andfittings, that will be reprocessed in a manufacturer’s plant after having been previously processed by the samemanufacturer by a process such as moulding or extrusion and for which the complete formulation is known

3.1.3.3external reprocessable materialmaterial comprising either one of the following:

a) material from rejected unused pipes or fittings, or trimmings there from, that will be reprocessed and that wereoriginally processed by another manufacturer;

b) material from the production of unused thermoplastics products other than pipes and fittings, regardless ofwhere they are manufactured

3.1.3.4recyclable materialmaterial comprising either one of the following:

a) material from used pipes or fittings which have been cleaned and crushed or ground;

b) material from used thermoplastics products other than pipes or fittings which have been cleaned and crushed or ground

3.2 Symbols

A : length of engagement, or maximum pull-out whilst maintaining tightness

a : circumferential cover by a saddle branch

B : length of lead-in

C : length of sealing zone

de : outside diameter

dem : mean outside diameter

dim : mean inside diameter

dn : nominal diameter

dn,1 : nominal diameter of the main of a branch/saddle branch

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dn,2 : nominal diameter of the branch of a branch/saddle branch

Dim,min : minimum socket mean inside diameter

e : wall thickness (at any point)

ec : construction height

emin : minimum wall thickness of pipe or spigot

e2 : wall thickness at any point of the cylindrical part of a socket

e3 : wall thickness at any point of a sealing ring grove of a socket

e4 : wall thickness of the inside layer (waterway wall thickness)

e5 : wall thickness of the inside layer under a hollow section

F : distance from the end of a spigot to the effective sealing point

l : effective length of a pipe

L : axial cover by a saddle branch

L1,min : minimum length of a spigot

Sso : actual stiffness of the cylindrical part of the socket

Ssp : actual stiffness of the spigot

Z1 : design length of a fitting



α : nominal angle of fitting

3.3 Abbreviations

CaCO3 : calcium carbonate

CT : close tolerance

DN : nominal size

DN/ID : nominal size related to inside diameter

DN/OD : nominal size related to outside diameter

MgCO3 : magnesium carbonate

MFR : melt mass-flow rate

OIT : oxidation induction time

PE : polyethylene

PP : polypropylene

PVC-U : unplasticized poly(vinyl chloride)

S : pipe series S

SDR : standard dimension ratio

SN : nominal ring stiffness

TIR : true impact rate

TPE : thermo plastic elastomer

VST : Vicat softening temperature

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4 Material

4.1 General

The material shall be one of the following, unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) orpolyethylene (PE) to which are added those additives that are needed to facilitate the manufacture of componentsconforming to this standard including the relevant annexes.

Spirally formed pipes type B may include a support profile (see Figure 4) made from other polymers than PVC-U,PP or PE.

Spirally formed pipe constructions may include continuous elastomeric sealing component of a material conformingto EN 681-1, EN 681-2 or EN 681-4 as applicable, or a continuous adhesive conforming to 4.7.

4.2 Unplasticized poly(vinyl chloride) (PVC-U)

4.2.1 General

The raw material shall be PVC-U to which are added those additives that are needed to facilitate the manufactureof components conforming to the requirements of this standard (see also annex A).

NOTE Additional information of the characteristics of PVC-U material or components made thereof is given in annex G.

4.2.2 Pipe and fitting material characteristics

When tested in accordance with the test method as specified in Table 1, using the indicated parameters, thematerial shall have characteristics conforming to the requirements given in Table 1.

Table 1 — Material characteristics of PVC-U pipes and injection-moulded fittings

Characteristic Requirements Test parameters Test method

Resistance tointernal pressurea, b, c

No failure duringthe test period

End capsOrientationNumber of test piecesTest temperatureCircumferential stress

- pipe material- fitting material

Conditioning period

Type of testTest period

Type a or bFree360 °C

10 MPa6,3 MPaShall conform to EN 921Water-in-water1000 h

EN 921

a This requirement does not apply to the specified intermediate layer of a type A1 pipe.b For extrusion compounds this test shall be carried out in the form of a solid wall pipe made from therelevant extrusion material.c For injection-moulding compounds this test shall be carried out in the form of an injection-moulded orextruded sample in solid wall pipe form made from the relevant material.

4.2.3 Utilisation of non-virgin materials

For the utilisation of non-virgin PVC-U materials conditions and requirements are given in annex B.

NOTE Annex H gives a survey of the possible use of reprocessable and recyclable materials.

4.3 Polypropylene (PP)

4.3.1 General

The compound for pipes and fittings shall be PP base material to which are added those additives that are neededto facilitate the manufacture of components conforming to the requirements of this standard. See also annex C

NOTE Additional information of the characteristics of PP material or components made thereof is given in annex G.

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4.3.2 Pipe and fitting material characteristics

When tested in accordance with the test methods as specified in Table 2, using the indicated parameters, thematerial shall have characteristics conforming to the requirements given in Table 2.

Table 2 Material characteristics of PP pipes and injection-moulded fittings


Resistance tointernalpressure,140 ha,b,c


End capsTest temperatureOrientationNumber of test piecesCircumferential stressConditioning period


Type a or b80 °CFree34,2 MPaShall conform to EN 921Water-in-water140 h

EN 921

Resistance tointernal pressure1000 ha,b,c




Type a or b95 °CFree32,5 MPaShall conform to EN 921Water-in-water1000 h

EN 921

Melt mass-flowrate

≤ 1,5 g/10 min TemperatureLoading mass

230 °C2,16 kg

EN ISO 1133:1999condition M

Thermal stability,OIT

d ≥ 8 min Temperature 200 °C EN 728

a This requirement does not apply to the specified intermediate layer of a type A1 pipe.b For extrusion compounds this test shall be carried out in the form of a solid wall pipe made from the relevantextrusion material.c For injection-moulding compounds this test shall be carried out in the form of an injection-moulded, or extrudedsample in solid wall pipe form made from the relevant material.d This requirement is only valid for pipes and fittings intended to be jointed in field by fusing or welding.

4.3.3 Melt mass-flow rate classification

Materials for pipes and fittings intended for jointing in field by fusion or welding shall be designated by the followingMFR classes:

– Class A: MFR ≤ 0,3 g/10 min

– Class B: 0,3 g/10 min < MFR ≤ 0,6 g/10 min

– Class C: 0,6 g/10 min < MFR ≤ 0,9 g/10 min

– Class D: 0,9 g/10 min < MFR ≤ 1,5 g/10 min

In the case where a raw material because of its MFR tolerance arbitrarily fall in one of two adjacent classes themanufacturer of the components may mark the MFR class on the product as follows:

a) for MFR value across the border between A and B it is permitted to classify as class A;

b) for MFR value across the border between B and C it is permitted to classify as class C;

c) for MFR value across the border between C and D it is permitted to classify as class D;


For the utilisation of non-virgin PP materials conditions and requirements are given in annex D.

Note Annex H gives a survey of the possible use of reprocessable and recyclable materials.

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4.4 Polyethylene (PE)

4.4.1 General

The base material shall be polyethylene (PE) to which are added those additives that are needed to facilitate themanufacture of components conforming to this standard. See also annex E.

NOTE Additional information of the characteristics of PE material or components made thereof is given in annex G.

4.4.2 Material characteristics of pipes and injection-moulded fittings

When tested in accordance with the test method as specified in Table 3, using the indicated parameters, thematerial shall have characteristics conforming to the requirements given in Table 3.

Table 3 Material characteristics of PE pipes and injection-moulded fittings






Type a or b80 °CFree33,9 MPaShall comply to EN 921Water-in-water165 h

EN 921





Type a or b80 °CFree32,8 MPaShall comply to EN 921Water-in-water1000 h

EN 921

Melt mass-flowrate

≤ 1,6 g/10 min TemperatureLoading mass

190 °C5 kg

EN ISO1133:1999condition T

Thermal stability,OIT

≥ 20 min Temperature 200 °C EN 728

Referencedensity

≥ 930 kg/m3 Shall conform to ISO 1183 ISO 1183

a This requirement does not apply to the specified intermediate layer of a type A1 pipe.b This test shall be carried out in the form of a solid wall pipe made from the relevant extrusion.c For injection-moulding compounds this test shall be carried out in the form of an injection-moulded, orextruded sample in pipe form made from the relevant material.

4.4.3 Material characteristics of rotational-moulded fittings

When tested in accordance with the test methods as specified in Table 4, using the indicated parameters, thematerial shall have characteristics conforming to the requirements given in Table 4.

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Table 4 Material characteristics of PE rotational-moulded fittings

Characteristic Requirements Test parameters Test

Resistance tointernal pressure165 h

a


End capsOrientationNumber of test piecesTemperatureCircumferential stressConditioning period


Type a or bFree360 °C3,9 MPaShall conform to EN 921Water-in-water165 h

EN 921

Resistance tointernal pressure1000 h

a


End capsOrientationNumber of test piecesTemperatureCircumferential stressConditioning period


Type a or bFree360 °C3,2 MPaShall conform to EN 921Water-in-water1000 h

EN 921

Melt mass-flow rate 3 g/10 min ≤ MFR≤ 16 g/10 min

TemperatureLoading mass

190 °C5 Kg

ENISO 1133:1999Condition T

Thermal stability ≥ 10 min Temperature 200 °C EN 728

Density ≥ 925 kg/m3 Temperature (23 ± 2) °C ISO 1183

a This test shall be carried out in the form of an injection-moulded, or extruded sample in solid wallpipe form made from the relevant material.


For the utilisation of non-virgin PE materials conditions and requirements are given in annex F.

NOTE Annex H gives a survey of the possible use of reprocessable and recyclable materials.

4.5 Sealing ring retaining components

It is permitted that sealing rings are retained using components made from polymers other than PVC-U, PP or PE.

4.6 Sealing rings

The sealing ring material shall conform to EN 681-1, EN 681-2 or EN 681-4, as applicable.

The sealing ring shall have no detrimental effects on the properties of the components and shall not cause the testassembly to fail the performance requirements given in clause 10.

4.7 Adhesives for PVC-U

The adhesive for solvent cement jointing of PVC-U shall be solvent cement and shall be as specified by themanufacturer of the pipes or fittings where appropriate.

The adhesive shall have no detrimental effects on the properties of components and shall not cause the testassembly to fail the performance requirements given in clause 10.

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4.8 Fused or welded joints

The design of fused or welded joints together with the manufacturers instructions for the jointing process shall notcourse the test assembly to fail the performance requirements given in clause 10.

5 Designation of wall constructions and examples of typical jointing methodsNOTE The figures are schematic sketches only to indicate the relevant dimensions. They do not necessarily represent the manufacturedcomponents.

5.1 Wall constructions designated as type A

5.1.1 Multilayer construction or hollow-wall construction with axial hollow sections, type A1constructions

A pipe or fitting with plain inside and outside surfaces and in which the outer and inner walls are connected byinternal axial ribs or a foamed or non-foamed intermediate layer of thermoplastics, shall be designated type A1.

Typical examples of type A1 constructions are shown in Figure 1.

Figure 1 Typical examples of wall construction type A1

5.1.2 Hollow-wall construction with spirally or radial formed hollow sections, type A2 construction

A pipe or fitting with plain inside and outside surfaces and in which the outer and inner walls are connected byinternal spirally or radially formed ribs, shall be designated type A2.

A typical example of type A2 constructions is shown in Figure 2.

Figure 2 Typical example of wall construction type A2

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5.1.3 Typical jointing methods for structured-wall pipes type A

Relevant dimensions for typical joints of type A pipes are shown in Figure 3. When factory mounted sealing ringsare used, the dimensions A and C may be defined relative to the effective sealing point.

Figure 3 Typical examples of joints for type A constructions

5.2 Wall constructions designated as type B

5.2.1 Ribbed or corrugated construction

A pipe or fitting with a plain inside surface and a solid or hollow spiral or annular ribbed external surface shall bedesignated type B.

Typical examples of type B constructions are shown in Figure 4.

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Figure 4 Typical examples of wall construction type B

5.2.2 Typical jointing methods for structured-wall type B

Relevant jointing dimensions for typical type B joint constructions are shown in Figure 5 and Figure 6.

Figure 5 Typical examples of elastomeric sealing ring joints with the sealingring located on the spigot, type B

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Figure 6 Typical example of an elastomeric sealing ring joint with sealingring located in the socket, type B

5.3 Designation and design of joints

Pipes and fittings may be designed with spigot ends and sockets of another construction than the pipe or fittingbody. Such constructions may be type A1, A2 or B or solid plain.

NOTE Joints with elastomeric sealing rings are designed either with the sealing ring positioned on the spigot, see Figure 5, or in thesocket, see Figure 6.

6 General characteristics for pipes and fittings

6.1 Appearance

When viewed without magnification the following requirements apply:

a) the internal and external surfaces of pipes and fittings shall be smooth, clean and free from grooving, blistering,visible impurities or pores and any other surface irregularity likely to prevent their conformity to this standard;

b) pipe and fittings ends shall be cleanly cut, where applicable, and square to the axis of the pipe and within anycutting zone recommended by the manufacturer, or according to the profile geometry as specified by themanufacturer;

c) edges on spirally formed pipes and fittings, which become sharp when cut, shall be rounded off.

6.2 Colour

The inner and outer layer of pipes and fittings shall be coloured throughout. The outside layer of pipes and fittingsshould preferably be black, orange-brown (approximately RAL 8023) 1) or dusty grey (approximately RAL 7037)

1).Other colours may be used.

7 Geometrical characteristics

7.1 General

All dimensions shall be measured in accordance with prEN ISO 3126.

1) According to the colour register RAL 840-HR.

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7.2 Dimensions

7.2.1 Designation

Pipes and fittings are sized either according to their outside diameter (DN/OD-series) and/or according to theirinside diameter (DN/ID-series).

DN/OD pipes and fittings type B with plain spigot jointing dimensions conforming to EN 1401-1, EN 1852-1 orprEN 12666-1 for PVC-U, PP and PE respectively, and with larger de than the spigot may be designated by thespigot dimension.

NOTE Because of the permitted variations in geometric details, conformity to this standard does not ensure inter changeability of pipes,fittings and other components from different manufacturers and/or different designs other than for type A1 and solid wall components whichhave jointing dimensions in accordance with EN 1401-1, EN 1852-1 or prEN 12666-1.EN 1852-1 and prEN 12666-1 includes two sets of tolerances on the outside diameters of spigots. These tolerances are included in Table 5.

7.2.2 Lengths of pipe

The effective length of pipe, l, shall not be less than that specified by the manufacturer when measured as shownin Figure 3 and/or Figure 5.

7.2.3 Diameters

7.2.3.1 Type A1 pipes and type A1 spigots of pipes or fittings

Type A1 pipes and spigots, including solid plain spigots, intended to have jointing dimensions as pipes and fittingsaccording to EN 1401-1, EN 1852-1 or prEN 12666-1 for PVC, PP or PE respectively, shall comply with one ormore of those standards regarding the nominal sizes. The outside diameters and their tolerances shall conform toTable 5.

The minimum inside diameter of the pipe and spigot shall conform to Table 6.

Other nominal sizes than those specified in EN 1401-1, EN 1852-1 or prEN 12666-1 for PVC, PP or PErespectively, greater than DN/OD 110 and less than DN/OD1200, are permitted. They shall be selected from theRenard R40 series or from traditional national dimensions.

In such cases the requirements regarding outside diameters and tolerances of the outside diameter shall belinearly interpolated between the adjacent values specified in Table 5. The requirements to the minimum insidediameter shall be linearly interpolated from the adjacent values specified in Table 6.

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Table 5 – Outside diameters of type A1 pipes and plain spigots for OD series pipesand fittings intended to have jointing dimensions conforming to EN 1401-1, EN 1852-1 or prEN 12666-1

Mean outside diameters a

Close tolerance Normal tolerance

Nominal sizeDN/OD

dem, min dem, max dem, max

110125160200

250315400500

63080010001200

110,0125,0160,0200,0

250,0315,0400,0500,0

630,0800,01000,01200,0

110,3125,3160,4200,5

250,5315,6400,7500,9

631,1801,31001,61202,0

111,0126,2161,5201,8

252,3317,9403,6504,5

635,7807,21009,01210,0

aThe CT series is identical to the corresponding tolerances in EN 1401-1.

Plain spigots of PVC-U and spigots intended to be used with PVC pipes and fittings shallalways conform to the close tolerance series.

Smooth spigots of PP or PE shall either conform to the close tolerance or to the normaltolerance series. When they have close tolerances they shall be marked ”CT”.

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Table 6 Nominal sizes, minimum mean inside diameters,wall thicknesses and socket and spigot dimensions

Diameters Min. wall thickness Socket a

DN/OD series DN/ID series A1 A2 and B

PVC-U PP/ PEfoamedlayer

openchannel

PVC-U alltypes andPP/PE type B

PP/PEtype A1and A2

DN/OD dim,min dim,min DN/ID dim,min e4,min e4,min e4,min e5,min Amin Amin

110 97 90 100 95 0,4 0,6 1,0 1,0 32 40

125 107 105 0,4 0,6 1,1 1,0 35 43

125 120 1,2 1,0 38 46

160 135 134 0,5 0,8 1,2 1,0 42 50

150 145 1,3 1,0 43 51

200 172 167 0,6 1,0 1,4 1,1 50 58

200 195 1,5 1,1 54 66

250 216 209 225 220 0,7 1,1 1,7 1,4 55 68

250 245 1,8 1,5 59 76

315 270 263 0,8 1,2 1,9 1,6 62 81

300 294 2,0 1,7 64 84

400 340 335 1,0 1,5 2,3 2,0 70 98

400 392 2,5 2,3 64 106

500 432 418 1,5 2,3 2,8 2,8 80 118

500 490 3,0 3,0 85 128

630 540 527 2,0 3,0 3,3 3,3 93 144

600 588 3,5 3,5 96 146

800 680 669 2,3 3,3 4,1 4,1 110 160

800 785 4,5 4,5 118 168

1000 864 837 2,8 4,0 5,0 5,0 130 180

1000 985 5,0 5,0 140 190

1200 1037 1005 2,8 4,7 5,0 5,0 150 200

1200 1185 5,0 5,0 162 212a

For selection of the Amin requirements for a socket, refer to the pipe material and construction. For pipes longerthan 6 m it is recommended to produce larger Amin than specified in this table.

The minimum mean inside diameter, dim,min, of a fitting shall not be less than 98 % of the specified minimum meaninside diameter of the pipe for which it is designed or conform to Table 6 whichever is the greater value.

7.2.3.2 Type A2 and B pipes and spigots of pipes or fittings

7.2.3.2.1 Preferred nominal sizes and minimum mean inside diameters for DN/OD and DN/ID series are specifiedin Table 6. For other nominal sizes see 7.2.3.2.4.

7.2.3.2.2 Pipes and spigots DN/OD series intended to have jointing dimensions as pipes and/or fittings accordingto EN 1401-1, EN 1852-1 or prEN 12666-1 for PVC, PP or PE respectively, shall comply to Table 5 regarding theoutside diameters and tolerances of the spigot.

7.2.3.2.3 For pipes and fittings not intended to have jointing dimensions as pipes and/or fittings according toEN 1401-1, EN 1852-1 or prEN 12666-1 for PVC, PP or PE respectively, the tolerance of the outside diameter ofpipe and spigot shall be:

dem,min ≥ 0,994 × de

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dem,max ≤ 1,003 × de

where de equals either the nominal size of a DN/OD pipe or the outside diameter as specified by the manufacturerof a DN/ID pipe.

The results are to be rounded to the next higher 0,1 mm.

7.2.3.2.4 Other nominal sizes, greater than DN/ID 100 and DN/OD 110 and less than DN/OD and DN/ID 1200,than given in Table 6, are permitted. They should preferably be selected from the Renard R40 series or traditionalnational dimensions.

In such cases the nominal size, DN/ID, of pipes and fittings shall be selected in such a way that the designedminimum mean inside diameter dim,min conform to the requirement to maximum limit deviations on internaldiameters in EN 476. Using the following equation fulfils this:

DN/ID = dim,min + X, rounded to the next lower Renard R 40 series, a traditional national size, 5 mm forDN/ID ≤ 250 or 10 mm for DN/ID > 250 as appropriate,

where

X = 5 mm for di,min ≤ 250 mm

X = 0,02 × di,min for 250 < di,min ≤ 600

X = 15 mm for di,min > 600 mm

For DN/ODs and DN/IDs not specified in Table 6, the minimum inside diameter, dim,min, shall be linearlyinterpolated between the adjacent values specified in the table.

7.2.4 Dimensions of sockets and spigots

7.2.4.1 Joints with the elastomeric sealing ring positioned in the socket

7.2.4.1.1 Type A1 and A2 sockets and spigots of PVC, PP or PE intended to have jointing dimensions as pipesand fittings conforming to EN 1401-1, EN 1852-1 or prEN 12666-1 respectively, shall comply with one or more ofthose standards regarding the socket and spigot dimensions, Amin, Cmax, Dim,min and L1,min.

In the case where other nominal sizes than specified in those standards are selected for type A1 and A2 pipes andspigots, see 7.2.3.1, the requirements regarding the socket and spigot dimensions, Amin, Cmax, Dim,min and L1,minshall be linearly interpolated between the adjacent values specified in those standards.

7.2.4.1.2 For type B pipes, the requirement regarding the socket and spigot dimension, Amin, specified in Table 6applies. In the case where other nominal sizes than specified in Table 6 are selected for type B pipes, see 7.2.3.2,the requirements regarding the socket dimension Amin shall be linearly interpolated between the adjacent valuesspecified in the table.

For type B pipes greater than DN/OD 630 and DN/ID 600, when they are designed for a specific project, Amin maybe shorter than specified above but not less that 85 mm. Such pipes shall be marked “SHORT SOCKET” after theEN number see Table 19.

7.2.4.1.3 In the case of a solid plain spigot and/or socket, the wall thicknesses e, e2 and e3 shall conform toTable 7.

Additionally the following apply for pipes and fittings with DN ≥ 500 and a solid plain spigot to be jointed withelastomeric sealing ring joints

a) stiffness > 2,5 kN/m2: the stiffness of the spigot, Ssp, shall be ≥ 2,0 kN/m2;

b) stiffness ≤ 2,5 kN/m2: the spigot wall thickness shall conform to Table 7. In case the spigot stiffness , Ssp, is< 2,0 kN/m2 the manufacturer shall specify details regarding the permitted installation conditions.

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If a rotational moulded fitting have a solid plain spigot and/or socket, the minimum required wall-thichnesses e, e2and e3 shall be 1,25 times the applicable values given in Table 7.

In addition to the minimum required wall thicknesses of sockets and spigots their ring stiffness, when calculated ormeasured in accordance with EN ISO 9969, shall conform to the following equation:

Sso + Ssp ≥ SNpipe

For the test it is permitted to use cut off straight socket and spigot parts even if they do not conform to the lengthrequirements specified in EN ISO 9969.

Table 7 Minimum required wall thicknesses of solid plain spigots and sockets

MaterialOutsidediameter

emin e2,min e3,min

PVC-U de ≤ 500 de/51 (de/51) × 0,9 (de/51) × 0,75

de > 500 9,8 8,9 7,4

PP de ≤ 500 de/41 (de/41) × 0,9 (de/41) × 0,75

de > 500 12,2 11,0 9,2

PE de ≤ 500 de/33 (de/33) × 0,9 (de/33) × 0,75

de > 500 15,2 13,7 11,4

NOTE The values should be calculated to the second decimal place and rounded to the next higher0,1 mm.

7.2.4.2 Joints with the elastomeric sealing ring positioned on the spigot

The spigot Amin shall conform to Table 6.

In the case where other nominal sizes than listed in Table 6 are selected, see 7.2.3.2, the requirement regardingAmin shall be linearly interpolated from the adjacent values specified in Table 6.

L1, min shall conform to the following:

L1, min = Amin + F

Where

F is the distance from the end of the spigot to the effective sealing point. See Figure 5.

NOTE The manufacturer should specify in which position the sealing ring shall be placed if there is more than one possibility.

For type B pipes greater than DN/OD 630 and DN/ID 600 when they are designed for a specific project, A min, maybe shorter than specified in the table. However it shall not be less that 85 mm. Such pipes shall be marked“SHORT SOCKET” after the EN number, see Table 19.

In the case of a solid plain socket, the wall thickness e3 shall conform to Table 7.

If a rotational moulded fitting have a solid plain socket, the wall-thickness e3 shall be 1,25 times the applicablevalue given in Table 7.

In addition to the minimum required wall thickness of sockets and spigots their ring stiffness, when calculated ormeasured in accordance with EN ISO 9969, shall conform to the following equation:

Sso + Ssp ≥ SNpipe

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For the test it is permitted to use cut off straight socket and spigot parts even if they do not conform to the lengthrequirements specified in EN ISO 9969.

7.2.5 Wall thicknesses

7.2.5.1 Pipes and spigots of pipes and fittings – type A1, A2 or B construction

The wall thickness of the inside layer, e4 and/or e5, as applicable, of pipes and spigots (see Figure 1, Figure 2 andFigure 4) shall conform to Table 6.

The construction height, ec, for pipes and spigots of pipes or fittings up to, DN/OD 200 and up to 200 mm actualoutside diameter of pipes DN/ID series shall be at least as specified for emin in:

– the SDR 41 series in EN 1401-1 for PVC-U;

– the S 16 series in EN 1852-1 for PP;

– the S12,5 series in prEN 12666-1 for PE.

In the case of DN/ID series pipes the calculation shall be based on the actual outside diameter of the pipes.

For sizes not specified in those standards the values shall be linearly interpolated between the adjacentdimensions.

The wall thicknesses of rotational moulded spigots shall be 1,25 times the values specified above rounded to thenext higher 0,1 mm.

7.2.5.2 Fabricated fittings

The wall thickness of the body of fittings fabricated from pipes shall conform to the requirements of thecorresponding pipe. Wall thickness reductions due to the process is permitted provided the stiffness requirementsin Table 17 are conformed to.

The socket and spigot dimensions shall comply with 7.2.3, 7.2.4, and 7.2.5 as applicable.

7.2.5.3 Injection-moulded fittings

The minimum wall thickness in the body of injection-moulded fittings of type B construction, e4,min, forDN/OD ≤ 315 and DN/ID ≤ 300 shall be 2,0 mm. For larger sizes it shall conform to the requirements to e4, min fortype A2 and B pipes in Table 6.

The minimum wall thickness in the body of injection-moulded fittings of type A1 construction, e4,min, shall conformto the requirements to e4, min for type A1 pipes in Table 6.

The construction height of the body, ec, for injection-moulded fittings up to 200 mm, DN/OD and up to 200 mmactual outside diameter of pipes DN/ID series shall be at least as specified for emin for:

– the SDR 41 series in EN 1401-1;

– the S 16 series in EN 1852-1;

– the S12,5 series in prEN 12666-1;

for PVC-U, PP and PE respectively.

In the case of ID series fittings the calculation shall be based on the actual outside diameter of the correspondingpipe.

The socket and spigot dimensions shall conform to 7.2.3, 7.2.4 and/or 7.2.5 as appropriate.

7.2.5.4 Rotational moulded fittings

The minimum wall thickness in the body of rotational-moulded fittings, e4,min, shall be 1,25 ×the values specified forinjection moulded fittings %, rounded to the next higher 0,1 mm.

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7.3 Types of fittings

7.3.1 General

This standard is applicable for the following types of fittings. Other designs of fittings including all socket and allspigot are permitted.

a) Bends unswept and swept angle (see Figure 7 and Figure 8).

NOTE 1 Preferred nominal angles, α, are the following: 15°, 22,5°, 30°, 45° and between 87,5° and 90°.

Figure 7 Examples of an unswept bend

Figure 8 Example of a swept bend

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b) Couplers and slip couplers (see Figure 9).

Figure 9 Example of coupler and slip coupler

c) Reducers (see Figure 10).

Figure 10 Example of reducer

d) Branches and reducing branches unswept and swept entry (see Figure 11).

NOTE 2 Preferred nominal angles, α, are 45° and between 87,5° and 90°.

Figure 11 Example of a swept entry and a straight branch

e) Saddle branches for solvent cementing, fusion or welding (see Figure 12)

1) the minimum axial cover, Lmin, in millimetres shall conform to the following:

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Dimensions in millimetres

dn2 ≤ 110 110 < dn2 ≤ 125 125 < dn2 ≤ 160 160 < dn2 ≤ 200

Lmin a 50 60 70 80

a Lmin ≤ La and Lmin ≤ Lb, see Figure 12.

2) for saddles having dn1 < 315 mm the cover shall be not less than half a circumference;

3) for saddles having dn1 ≥ 315 mm the circumferential cover, a, shall not be less than 80 mm.

NOTE 3 The preferred nominal angle, α, for saddle branches is 45°. When (dn2/dn1) ≤ 2⁄3; the nominal angle, α, can be 90°.

Key1 is for dn1 < 3152 is for dn1 ≥ 315

Figure 12 Example of a non-mechanical saddle

f) Plugs (see Figure 13).

1) the minimum length, L1,min, of the spigots shall be such that it passes the ring seal by at least 10 mm.

Figure 13 Example of a plug

7.3.2 Design length of fittings

The design length(s) (Z-lengths) of the fittings (see Figure 7 to Figure 12) shall be declared by the manufacturer.

NOTE The design lengths (Z-lengths) are intended to assist in the design of moulds and are not intended to be used for quality controlpurposes, ISO 265-1 can be used as a guideline.

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8 Physical characteristics

8.1 Unplastisized poly(vinyl chloride) (PVC-U)

8.1.1 Physical characteristics of PVC-U pipes

When tested in accordance with the test methods as specified in Table 8 using the indicated parameters, the pipeshall have physical characteristics conforming to the requirements given in Table 8.

Table 8 Physical characteristics of PVC-U pipes


Vicat softeningtemperature (VST)

aVST ≥ 79 °C Shall conform to EN 727 EN 727

Resistance todichloromethane

bNo attack Test temperature

Immersion timeChamfering

15 °C30 minNo

EN 580

Longitudinalreversion

c≤ 5 %

The pipe shall showno delaminationscracks or bubbles

f

TemperatureImmersion time

d for:

e ≤ 8 mm e > 8 mm

(150 ± 2) °C

15 min30 min

Method A ofEN 743:1994liquid

Or


d for:

e ≤ 8 mm e > 8 mm

(150 ± 2) °C

30 min60 min

Method B ofEN 743:1994 air

Resistance to hea-ting - Oven test

eThe pipe shall showno delaminationscracks or bubbles f

Test temperatureImmersion time

d for:

e ≤ 8 mm e > 8 mm

(150 ± 2) °C

30 min60 min

ISO 12091

aNot applicable to the foamed part of a pipe. If e4 is less than 1,8 mm the test shall be carried out on

a profile extruded from the material. Indirect test may be carried out using the pipe sample.b

Only applicable to pipes with wall thickness e4 > 5 mm. Not applicable to the foamed part of a pipe.Profiles for spirally wound pipes may be tested before winding.c

Only applicable to type A1 and A2 pipes.d

For the wall thickness, e, the maximum measured wall thickness of the pipe, excluding ec shall betaken.e

Only applicable to type B pipes.f

Bubbles in the foamed structure are exempt from this requirement.

8.1.2 Physical characteristics of PVC-U fittings

When tested in accordance with the test methods as specified in Table 9 using the indicated parameters, the fittingshall have physical characteristics conforming to the requirements given in Table 9.

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Table 9 Physical characteristics of PVC-U injection moulded fittings


Vicat softeningtemperature(VST)

a

For U application:VST ≥ 77 °C

For UDapplication:VST ≥ 79 °C

Shall conform to EN 727 EN 727

Effect of heating a b

Test temperatureHeating time

(150 ± 2) °CShall conform toEN 763

c

Method A ofEN 763:1994air

aOnly applicable to injection-moulded fittings and injection-moulded components for fabricated

fittings.b

a) Within a radius of 15 times the wall thickness around the injection point(s) the depth ofcracks, delamination or blisters shall not exceed 50 % of the wall thickness at that point;b) Within a distance of 10 times the wall thickness from the diaphragm zone, the depth ofcracks, delamination or blisters shall not exceed 50 % of the wall thickness at that point;c) Within a distance of 10 times the wall thickness from the ring gate the length of cracksrunning through the overall thickness of the wall shall not exceed 50 % of the wallthickness at that point;d) The weld line shall not have opened more than 50 % of the wall thickness at that line;e) In all other parts of the surface the depth of cracks and delaminations shall not exceed30 % of the wall thickness at that point. Blisters shall not exceed a length of 10 times thewall thickness.

cFor the wall thickness, e, the maximum measured wall thickness of the fitting, excluding ec shall

be taken.

8.2 Polypropylene (PP)

8.2.1 Physical characteristics of PP pipes


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Table 10 Physical characteristics of PP pipes



a≤ 2 %;The pipe shall showno delaminations,cracks or bubbles

d


b for:

e ≤ 8 mm e > 8 mm

(150 ± 2) °C

15 min30 min


OR


b for:

e ≤ 8 mm e > 8 mm

(150 ± 2) °C

30 min60 min

Method B ofEN 743:1994, air

Resistance toheating - Oventest

c

The pipe shall showno delaminations,cracks or bubbles d

Test temperatureImmersion time

b for:

e ≤ 8 mm e > 8 mm

(150 ± 2) °C

30 min60 min

ISO 12091

aThis requirement is only applicable to type A1 and A2 pipes.

bFor the wall thickness, e, the maximum measured wall thickness of the pipe, excluding ec shall be

taken.c

This requirement is only applicable to type B pipes.d

Bubbles in the foamed structure are exempt from this requirement

8.2.2 Physical characteristics of PP fittings

When tested in accordance with the test method as specified in Table 11 using the indicated parameters, thefittings shall have physical characteristics conforming to the requirements given in Table 11.

Table 11 Physical characteristics of PP injection moulded components




(150 ± 2) °CShall conformto EN 763

c

Method A ofEN 763:1994air


fittings.b

The depth of cracks, delamination or blisters shall not be more than 20 % of the wall thicknessaround the injection point(s). No part of the weld line shall open to a depth of more than 20 % of thewall thickness.c

For the wall thickness, e, the maximum measured wall thickness of the fitting, excluding ec shallbe taken.

8.3 Polyethylene (PE)

8.3.1 Physical characteristics of PE pipes


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Table 12 Physical characteristics of PE pipes



a≤ 3% ;The pipe shall showno delaminations,cracks or bubbles

d


b for:

e ≤ 8 mm e > 8 mm

(110 ± 2) °C

15 min30 min


OR

TemperatureImmersion timeb for: e ≤ 8 mm e > 8 mm

(110 ± 2) °C

30 min60 min

Method B ofEN 743:1994 air

Resistance toheating - Oventest

c

The pipe shall showno delaminations,cracks or bubbles d

Test temperatureImmersion time b for: e ≤ 8 mm e > 8 mm

(110 ± 2) °C

30 min60 min

ISO 12091

aOnly applicable to type A1 and A2 pipes.

bFor the wall thickness, e, the maximum measured wall thickness of the pipe, excluding ec shall be

taken.c

Only applicable to type B pipes.d

Bubbles in the foamed structure are exempt from this requirement.

8.3.2 Physical characteristics of PE fittings

When tested in accordance with the test method as specified in Table 13 using the indicated parameters, the fittingshall have physical characteristics conforming to the requirements given in Table 13.

Table 13 Physical characteristics of PE injection moulded components




c(110 ± 2) °C Method A of

EN 763:1994air


fittings.b

The depth of cracks, delamination or blisters shall not be more than 20 % of the wall thicknessaround the injection point(s). No part of the weld line shall open to a depth of more than 20 % of thewall thickness.c

For the wall thickness, e, the maximum measured wall thickness of the fitting, excluding ec shall betaken.

9 Mechanical characteristics

9.1 Mechanical characteristics of pipes

When tested in accordance with the test methods as specified in Table 14 using the indicated parameters, the pipeshall have mechanical characteristics conforming to the requirements given in Table 14.

The pipes shall be designated in one of the following nominal ring stiffness classes (SN):

DN ≤ 500: SN 4, SN 8 or SN 16;

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DN > 500: SN 2, SN 4, SN 8 or SN 16.

For DN ≥ 500 the manufacturers guaranteed minimum stiffness, between the SN values, of a component may beused for calculation purposes.

Table 14 Mechanical characteristics of pipes


Ring stiffness ≥ relevant SN Shall conform to EN ISO 9969 EN ISO 9969

Impact strength TIR ≤10 % Test temperatureConditioning mediumType of strikerMass of striker for a: dem,min ≤ 110110 < dem,min ≤ 125125 < dem,min ≤ 160160 < dem,min ≤ 200200 < dem,min ≤ 250250 < dem,min ≤ 315315 < dem,min:Fall height of striker for

a:

dem,min. ≤ 110 dem,min > 110:

(0 ± 1) °CWater or aird90

0,5 kg0,8 kg1,0 kg1,6 kg2,0 kg2,5 kg3,2 kg

1600 mm2000 mm

EN 744

Ring flexibility Shall conform to 9.1.1 DeflectionLength of test piece

Position of test piece

30 % of demShall incorporate atleast 5 reinforcementribs

Mould split line, whenapplicable, at 0°, 45°and 90° from theupper plate

EN 1446

Creep ratio PVC-U: ≤ 2,5 at 2 years extrapolation.PP and PE: ≤ 4 at 2 years extrapolation

Shall conform to EN ISO 9967 EN ISO 9967

Tensile strength ofseam

b Shall conform to 9.1.2 Rate of movement 15 mm/min EN 1979

aRefer to the specified dem,min

bOnly applicable to spirally formed pipes.

9.1.1 Ring flexibility

When tested in accordance with the test method as described in Table 14 using the indicated parameters andvisually inspected without magnification a) and b) shall be conformed to during the test:

a) there shall be no decrease of the measured force;

b) there shall be no cracking in any part of the wall structure. For spirally formed pipes, tears initiated along thecut of a rib shall not be considered as a failure if less than 0,075 dem mm or 75 mm, whichever is the smaller;

and c) to e) shall be conformed to after the test:

c) there shall be no wall delamination except possible delamination between outside and inside wall of doublewall pipes occurring in reduced welding zone in the ends of the test piece.Process aiding profile of another material than the pipe material, see Figure 4, are not subject to this requirement;

d) there shall be no other types of rupture in the test piece;

e) permanent buckling in any part of the structure of the pipe wall including depressions and craters shall notoccur in any direction.

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9.1.2 Tensile strength

When tested in accordance with Table 14 the minimum required tensile strength of the seam shall conform toTable 15.

Table 15 Minimum tensile strength of seam

Nominal sizeDN/ID or DN/OD

Min. tensile force

N

DN ≤ 375 380

400 ≤ DN ≤ 560 510

600 ≤ DN ≤ 710 760

DN ≥ 800 1020

9.2 Additional requirements

Pipes intended to be used in areas where installation is usually carried out at temperatures below -10 °C shallconform to the requirements of an impact test (staircase method) specified in Table 16.

Such pipes shall be marked with the symbol of an ice crystal in accordance with Table 19.

Table 16 Cold climate performance impact test for pipes


Impact resistance

Staircase method

H50 ≥ 1000 mm

No break below500 mm

Test and conditioning temperatureType of strikerFall mass for

a:

dem,min ≤ 110110 < dem,min ≤ 125125 < dem,min ≤ 160160 < dem,min ≤ 200200 < dem,min ≤ 225225 < dem,min

0 °C

d 90

4,0 kg5,0 kg6,25 kg8,0 kg10,0 kg12,5 kg

EN 1411

aRefer to the specified dem,min

9.3 Mechanical characteristics of fittings

When tested in accordance with the test methods as specified in Table 17 using the indicated parameters, thefitting shall have mechanical characteristics conforming to the requirements given in Table 17.

The fittings shall be designated in one of the following nominal stiffness classes (SN):

DN ≤ 500: SN 4, SN 8 or SN 16;

DN > 500: SN 2, SN 4, SN 8 or SN 16.

For DN ≥ 500 the manufacturers guaranteed minimum stiffness, between the SN nominal values of a component,may be used for calculation purposes.

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Table 17 Mechanical characteristics of fittings


Stiffness a

≥ relevant SN Shall conform to ISO 13967 ISO 13967

Impact test No cracksthrough the wall;jumped offsealing elementsshall be able tobe restored incorrect positionmanually

Test temperatureDrop height for: de ≤ 125: de >125:Position of impact

0 °C

1000 mm500 mmMouth of the socket

EN 12061

EITHER EN 12256Mechanicalstrength orflexibility

b

No signs ofsplitting,cracking,separation and/orleakage

Test periodMinimum moment for: de ≤ 250 de > 250

15 min

0,15[DN]3 × 10−6 kNm0,01[DN] kNm

OR

Minimum displacement 170 mma

When a fitting according to this standard has the same wall construction as a corresponding pipe,the stiffness of the fitting, because of its geometry, is equal to or greater than that of the pipe. Suchfittings can be classified with the same stiffness class as that pipe without testing of the stiffness.b

Only for fabricated fittings made from more than one piece (a sealing ring retaining component isnot considered as a piece) or when the minimum wall thickness in the body, e4,min, is less than(0,9 × dem/51), (0,9 × dem/41) (or 0,9 × dem/33) for PVC, PP and PE respectively.

10 Performance requirements

When tested in accordance with the test methods as specified in Table 18 using the indicated parameters, thejoints and the system shall have characteristics conforming to the requirements given in Table 18.

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Table 18 Performance requirements


Tightness ofelastomeric ring sealjoint

TemperatureSpigot deflectionSocket deflection

(23 ± 2) °C10 %5 %

prEN 1277:2002,Condition B

No leakage Water pressure 0,05 bar


≤ − 0,27 bar Air pressure − 0,3 bar

Tightness ofelastomeric ring sealjoint

TemperatureJoint deflection for: de ≤ 315 315 < de ≤ 630 630 < de

(23 ± 2) °C

2°1,5°1°

prEN 1277:2002,Condition C



≤ − 0,27 bar Air pressure − 0,3 bar

Resistance tocombined temp.cycling and external

aFor dim ≤ 160 mm: Shall conform to Method Aof prEN 1437:1994;

Method A of prEN1437:1994: hot andcold water

loading b

For dim > 160 mm: Shall conform to Method Bof prEN 1437:1994

Method B of prEN1437:1994: hot water

Elevated temperaturecycling

c No leakage Shall conform to EN 1055 EN 1055 andAssembly b, Figure 2of EN 1055:1996

Long-term perfor-mance of TPE seals

Sealing pressure:- after 90 days: ≥ 1,3 bar;- 100 years extrapolated: ≥ 0,6 bar

Test temperature (23 ± 2) °C EN 1989

Watertightness d No leakage Water pressureDuration

0,5 bar1 min

EN 1053

Tensile test of weldedor fused joints

No break in thejoint

Min. tensile force Shall conform to Table 15 EN 1979 e

aThe following requirements apply:

− vertical deformation: ≤ 9 %− deviation from surface evenness in bottom: ≤ 3 mm− radius of bottom: ≥ 80 % of original− opening of weld line: ≤ 20 % of wall thickness− tightness at 0,35 bar/15 min: No leakage allowed

bOnly for components in accordance with this standard with DN/OD ≤ 335 and DN/ID ≤ 300 and marked UD.

cOnly for components in accordance with this standard with DN/OD ≤ 200 and DN/ID ≤ 180 and marked UD.

dOnly for fabricated fittings made from more than one piece. A sealing ring retaining component is not consideredas a piece.

eThis test is applicable for all pipe and fitting constructions when jointed by fusion or welding. The test pieces shallbe cut longitudinally in the fusion area. The length of the test piece shall include the joint plus a length at each end sufficient to ensure a proper grip in the tensile testing machine.

NOTE A long-term sealing performance test of joints is under consideration.The parameters and requirements for this test will be presented in a draft addendum to this standard. The addendum will follow the sameenquiry procedure as this standard. The relevance of the long-term performance test of TPE seals will be further considered when this testmethod is available.

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11 Marking

11.1 General

11.1.1 Presentation

Marking elements shall be printed or formed directly on the component or be on a label in such a way that afterstorage, handling, and installation the required legibility is maintained.

Three levels of legibility of the marking on components are specified for the individual marking aspects given inTable 19 and Table 20. The required legibility of marking is coded as follows:

a) durable in use;

b) legible at least until the system is installed;

c) marking on the packaging, legible at least until the component is installed.

NOTE The manufacturer is not responsible for marking being made illegible due to actions during installation and use such as painting,scratching, covering of the components or by use of e.g. detergents on the components unless agreed with, or specified by the manufacturer.

11.1.2 Marking process

Marking shall not initiate cracks or other types of defects which are likely to prevent conformity to this standard.

11.1.3 Size

The size of the marking shall be such that the marking is legible without magnification.

11.2 Minimum required marking

11.2.1 Pipes

Pipes shall be marked at intervals of maximum 2 m, at least once per pipe.

The minimum required marking of pipes shall conform to Table 19.

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Table 19 Minimum required marking of pipes

Aspect Marking or symbols Legibility code

Number of this standardDiameter series, nominal size/actualguaranteed min. inside diameter

a for:

DN/OD series, interchangeable b

DN/OD series, not interchangeable b

DN/ID seriesManufacturer’s name and/or trade markStiffness classMaterialMFR class

e

Application area codeManufacturer’s informationCold climate performance

g

Short socket h

Close tolerance class i

EN 13476

DN200/178OD200/178ID180/178XXX e.g. SN 8Either PVC-U, PVC

d , PP or PE

e.g. MFR-B “f

c

(ice crystal)SHORT SOCKETCT

a

ac

a c

a c

aaaaaabbb

a The marking of the guaranteed minimum mean inside diameter is voluntary, but if marked it shall beas shown.b In this case inter changeability means use with pipes and/or fittings in accordance with EN 1401-1,EN 1852-1 or prEN 12666-1.c If a component is designed for both DN/OD and DN/ID series, one of them may be marked on a labeld PVC-U is preferred to PVC.e Only applicable for PP pipes intended to be jointed by butt fusion in the field.f Shall be given in clear figures or in a code providing traceability to the following details:

− the production period year and month.− the production site if the manufacturer is producing in different sites, nationally and/orinternationally.

g This marking is only applicable to pipes which by testing have proved to conform to the cold climateperformance requirement as specified in 9.2.h This marking is only applicable to pipes with short sockets according to 7.2.4.1 or 7.2.4.2.i Only applicable for PP and PE pipes with CT spigots as specified in Table 5.

11.2.2 Fittings

The minimum required marking of fittings shall conform to Table 20.

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Table 20 Minimum required marking of fittings

Aspect Marking or symbols Legibility code

Number of this standardDiameter series, nominal size/actualguaranteed min. inside diameter a for: DN/OD series, interchangeable b

DN/OD series, not inter changeable b

DN/ID seriesManufacturer’s name and/or trade markNominal angleStiffness classMaterialMFR class e

Application area codeManufacturer’s informationClose tolerance class g

EN 13476

DN200/178OD200/178ID180/178xxxe.g. 45°e.g. SN 8Either PVC-U, PVC d, PP or PEe.g. MFR-B “U” or “UD” as applicablef

CT

b

a c

a c

a c

abbaaabb

a The marking of the guaranteed minimum mean inside diameter is voluntary, but if marked it shall beas shown.b In this case inter changeability means use with pipes and/or fittings in accordance with EN 1401-1,EN 1852-1 or prEN 12666-1.c If a component is designed for both DN/OD and DN/ID series, one of them may be marked on alabel.d PVC-U is preferred to PVC.e Only applicable for PP fittings intended to be jointed by butt fusion in the field.f Shall be given in clear figures or in a code providing traceability to the following details:

− the production period year and month.− the production site if the manufacturer is producing in different sites, nationally and/or internationally.

g Only applicable for PP and PE fittings with CT spigots as specified in Table 5.

.

11.3 Additional marking

11.3.1 General

Pipes and fittings conforming to this standard, which conform also to other standard(s), may be additionally markedwith the required marking of that/those other standard(s).

NOTE Attention is drawn to the possible need to include CE marking when required for legislative purposes.

11.3.2 Third party certified pipes and fittings

Pipes and fittings conforming to this standard which are third party certified may be marked accordingly.

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Annex A(normative)

Virgin PVC-U material

The virgin material shall be PVC-U to which are added those additives that are needed to facilitate the manufactureof components conforming to the requirements of this standard.

When calculated on the basis of a known formulation or, in case of dispute/not known formulation, determined inaccordance with EN 1905 the PVC-U content shall conform as applicable to item a) or item b) as follows:

a) The content of PVC-U shall be at least 80 % by mass for pipes and 85 % by mass for injection-moulded fittings;

b) A further reduction of the PVC-U content for pipes only is permitted provided the PVC-U is substituted byCaCO3 conforming to item c) as follows:

The content of PVC-U shall be as follows:

Specified intermediate layer of type A1 pipes : ≥ 60 % by mass

Other layers : ≥ 75 % by mass

c) CaCO3 may be used with or without coating as follows.

The composition of the CaCO3, before coating if any, shall conform to the following:

Content of CaCO3 ≥ 95 % by mass.

Content of MgCO3 ≤ 2 % by mass.

Content of CaCO3 and MgCO3 in total ≥ 96 % by mass.

The physical properties of the material shall conform to the following:

Mean particle size ≤ 3 µm

Percentage finer than 10 µm ≥ 90 %

Top cut finer than 20 µm. ≥ 98 %

Particle size ≤ 45 µm

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Annex B(normative)

Utilisation of non-virgin PVC-U material

B.1 Reprocessable and recyclable material from pipes and fittingsNOTE For the purpose of this annex the term pipes means extruded pipes and any parts of a fabricated fitting which is made from anextruded pipe. The term fitting means injection-moulded fittings and injection-moulded parts of a fabricated fitting.

The use of clean own reprocessable material from components in conformity with this standard for the productionof pipes and fittings is permitted without limitations. If fitting material is used for the production of pipes it shall beconsidered as recyclable material.

B.2 External reprocessable and recyclable materials with agreed specification

B.2.1 Material from PVC-U pipes and fittings

External reprocessable and recyclable material with an agreed specification from PVC-U pipes and fittings that areavailable in relevant quantities and intervals of time shall be permitted to be used alone or added to virgin or ownreprocessable material or a mixture of those two materials for the production of pipes provided that all the followingconditions are met:

a) a specification for each material shall be agreed between the supplier of external reprocessable or recyclablematerial, the pipe manufacturer and, if applicable, the certification body. It shall at least cover the characteristicsgiven in Table B.1.

When determined in accordance with the test methods given in Table B.1, the actual values for thesecharacteristics shall conform to the agreed value and the permitted deviations shall conform to those given in TableB.1.

NOTE The quality system of the supplier of external reprocessable or recyclable material should conform to EN ISO 9001. For thepurposes of B.2.1, the manufacturer is responsible for claiming and ensuring that the quality plan conforms to or is not less stringent than therelevant requirements of EN ISO 9001. it is not essential for the manufacturer to be approved and registered for operation in accordance withEN ISO 9001.

b) each delivery shall be covered by a certificate according to 3.1.B of EN 10204:1991 showing conformity to theagreed specification;

Where a certificate of conformity is not provided with external reprocessable and recyclable material, themanufacturer shall conduct verification testing on all material to confirm it conforms to the requirements.

c) the maximum quantity of external reprocessable and/or recyclable material that is intended to be added shallbe specified by the pipe manufacturer;

d) the quantity of external reprocessable and/or recyclable material that is actually added in each productionseries shall be recorded by the pipe manufacturer;

e) the PVC-U content of the end product shall conform to the requirements specified in annex A;

f) Type testing shall be carried out on the end product with the maximum specified amount and with each form ofexternal reprocessable or recyclable material with an agreed specification. Approved results shall be taken asproving conformity also of components containing lower levels of external or recyclable material.

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Table B.1 Specification of characteristics to be covered by the agreement andmaximum permitted deviations for these characteristics

Characteristic Test method Maximum permitted deviations

PVC-U content a

EN 1905 ± 4 % absolute by mass

K-value a

EN 922 ± 3 units

Density a

ISO 1183 ± 20 kg/m3

Vicat softeningtemperature

aEN 727 ± 2 °C

Particle size b c

Requirements and test method shall be agreed and stated in thespecification

Type of stabiliser a b

Requirements and test method shall be agreed and stated in thespecification

Impurities b

Based on the source of material and the recycling process a relevant testmethod and requirements shall be agreed and stated in the specification.Both the test method and the requirements shall be published.

a If the source of the material is pipes and fittings produced under a national or European quality mark, it is not required to test those material characteristics if the requirement covered by the quality mark conforms to the requirement given in this table.

b The relevant requirements depend on the recycling process and on the end product.c The particle size shall not be greater than 50 % of the minimum wall thickness of the end product.

B.2.2 Material from PVC-U products other than pipes and fittings

External reprocessable and recyclable material with an agreed specification from PVC-U bottles or window framesthat are available in relevant quantities and intervals of time shall be permitted to be used up to 100 % by mass oradded to virgin or own reprocessable material or a mixture of those two materials for the specified intermediatelayer of type A1 pipes provided that all the following conditions are met:

a) the material shall conform to all the conditions given in a) to f) of B.2.1 and to all of the additionalcharacteristics and requirements given in Table B.2;

b) the material shall be clean and dry;

c) the quantity of external reprocessable and recyclable material that is actually added in each production seriesshall be recorded by the pipe manufacturer.

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Table B.2 Requirements for external reprocessable and recyclable material fromPVC-U products other than pipes and fittings

Characteristic Requirements Test method

PVC-U-content a

≥ 80 % by mass EN 1905

K-value a

56 ≤ K-value ≤ 70 EN 922

Density 1390 kg/m3 ≤ density ≤ 1500 kg/m3 ISO 1183

Vicat softening temperature(VST)

a≥ 62 °C EN 727

Impurities a

≤ 1500 ppm for particle size ≤ 1000 µm≤ 1500 ppm for 1000 µm < particle size < 1400 µm

b

Particle size a

> 1000 µm: max. 15 % by mass< 1400 µm: 100 % by mass

sieve analyze

Source of the material a

One source; bottles or window framesc

NOTE The attention is drawn to possible national regulations regarding heavy metals, e.g. cadmium.a

If the source of the material is unused products for which the complete formulation is known and is such that all therequirements given in this Table are fulfilled the material does not have to be tested and does not have to meet the requirementsfor particle size.b

Based on the source of material and the recycling process a relevant test method and requirements shall be agreed andstated in the specification. Both the test method and the requirements shall be published.c

The contents of all material shall be traceable and identifiable to the specification.

B.3 External reprocessable and recyclable materials not covered by an agreedspecification

B.3.1 Material from PVC-U pipes and fittings

External reprocessable and recyclable material not covered by an agreed specification from PVC-U pipes andfittings that are available in relevant quantities and intervals of time shall be permitted to be used alone or added tovirgin or own reprocessable material or a mixture of those two materials for the production of pipes provided that allof the following conditions are met:

a) when this material is used the production shall be considered as at least one batch and shall be testedaccordingly;

b) the material shall be clean and dry;

c) for specified intermediate layers of a pipe of type A1 up to 100 % by mass of external reprocessable orrecyclable material is permitted to be used;

d) in other cases the maximum allowed amount of reprocessable and recyclable material shall depend on thedifference in K-value of the virgin material and the reprocessable and recyclable material as follows:

1) if the difference in K-value, when determined in accordance with EN 922, is ≤ 4 units, then up to 10 % bymass may be added;

2) if the difference in K-value is > 4 units or not determined, then up to 5 % by mass may be added;

e) the quantity of external reprocessable and recyclable materials that is actually added in each production seriesshall be recorded by the pipe manufacturer.

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B.3.2 Material from other PVC-U products than pipes and fittings

External reprocessable and/or recyclable material not covered by an agreed specification from other PVC-Uproducts than pipes and fittings shall not be used for the production of pipes and fittings conforming to thisstandard.

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Annex C(normative)

Virgin PP material

The virgin material shall be PP to which are added those additives that are needed to facilitate the manufacture ofcomponents conforming to the requirements of this standard.

When calculated on the basis of a known formulation or, in case of dispute/not known formulation, determined inaccordance with EN ISO 3451-1 the PP content shall conform as applicable to item a) or item b) as follows:

a) The content of PP shall be at least 80 % by mass for pipes and 85 % by mass for injection-moulded fittings;

b) A further reduction of the PP content for a specified intermediate layer of type A1 pipes only is permittedprovided the PP is substituted by CaCO3 conforming to c)

c) The content of PP shall be ≥ 60 % by mass.

d) CaCO3 may be used with or without coating as follows.

1) The composition of the CaCO3, before coating if any, shall conform to the following:




2) The physical properties of the material shall conform to the following:



Top cut finer than 20 µm. ≥ 98 %


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Annex D(normative)

Utilisation of non-virgin PP material

D.1 Reprocessable and recyclable material from pipes and fittingsNOTE For the purpose of this annex the term pipes means extruded pipes and any parts of a fabricated fitting which is made from anextruded pipe. The term fitting means injection-moulded fittings and injection-moulded parts of a fabricated fitting.

The use of clean own reprocessable material of components conforming to this standard for the production of pipesand fittings is permitted without limitations.

D.2 External reprocessable and recyclable materials with an agreed specification

D.2.1 Material from PP pipes and fittings

External reprocessable and recyclable materials with an agreed specification from PP from pipes and fittings thatare available in relevant quantities and intervals of time may be used alone or added to virgin or own reprocessableor a mixture of those two materials for production of pipes (and fittings, if relevant) provided all of the followingconditions are met.

a) A specification for each material shall be agreed between the supplier of external reprocessable or recyclablematerial, the pipe manufacturer and, if applicable, the certification body. It shall at least cover the characteristicsmentioned in Table D.1.

When determined in accordance with the test methods given in Table D.1, the actual values for thesecharacteristics shall conform to the agreed value and the permitted deviations shall conform to those given inTable D.1.

NOTE The quality system of the supplier of external reprocessable or recyclable material should conform to EN ISO 9001. For thepurposes of D.2.1, the manufacturer is responsible for claiming and ensuring that the quality plan conforms to or is no less stringent than therelevant requirements of EN ISO 9001. It is not essential for the manufacturer to be approved and registered for operation in accordance withEN ISO 9001.

b) Each delivery shall be covered by a certificate according to 3.1.B of EN 10204:1991, showing conformity to theagreed specification.


c) The maximum quantity of external reprocessable and/or recyclable material that is intended to be added shallbe specified by the manufacturer.

d) The quantity of external reprocessable and/or recyclable material that is actually added in each productionseries shall be recorded by the manufacturer.

e) The material of the end product shall conform to the requirements as specified in 4.3 and annex C except asper clause D.2.1 h).

f) The material shall be clean and free from visible contamination. Material filtering during palletising or extrusionshall be carried out.

g) Type testing shall be carried out on the end product with the maximum specified amount and with each form ofexternal reprocessable or recyclable material with an agreed specification. Approved results shall be taken asproving conformity also of components containing lower levels of external or recyclable material.

h) For single layers and outside/inside skins only PP-B shall be used.

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For specified intermediate layers of type A1 pipes PP-B, PP-C and PP-H material may be used when the meltmass-flow rate of the material does not deviate more than 20 % from the value of the virgin material.

Table D.1 Specification of characteristics to be covered by the agreement andmaximum permitted deviations for these characteristics

Characteristic Unit Test method a

Maximum permitted deviation

Density ISO 1183 ± 15 kg/m3

E-modulus, secant 1 % MPa EN ISO 527-2, injection moulded orextruded samples

Min. as agreed b

Elongation at break % EN/ SO 527-2, test piece type 1B at50 mm/min, injection moulded orextruded samples

Min. as agreed b, but ≥ 100 %

Melt mass-flow rate g/10 min EN ISO 1133:1999, condition T ± 20 %

Ash residue % EN ISO 3451-1 Maximum as agreed b

Oxidation induction time min EN 728, T = 200 °C Min. as agreed, b, but not less

than 4 min

Source of the material c

As agreed b

Extraneous polymers % IR analyses Max. as agreed, b,

d, only PP, no

other polymers identified bydocumentation

Non meltable particles % Mesh filtering [see D.2.1f) and D.3.1d)]

Max. as agreed b

Cadmium %e e

Volatile matterb

Max. as agreed b

a Samples shall be taken from the compounded and palletised or from each individual material batch source. The frequency of sampling shall be agreed between supplier and manufacturer and, where relevant, the certification body.

b Agreed between supplier and manufacturer and, where relevant, the certification body.c The contents of all material shall be traceable and identifiable to the specification.d For pipes and fittings intended for fusion systems PP with a PE content > 1% by mass may be difficult to fuse.e For heavy metals e.g. cadmium, national regulations shall apply.

D.2.2 Material from PP products other than pipes and fittings

External reprocessable and/or recyclable material from PP products other than pipes and fittings shall not be usedfor the production of pipes and fittings conforming to this standard.

D.3 External reprocessable and recyclable materials not covered by an agreedspecification

D.3.1 Material from PP pipes and fittings

External reprocessable and recyclable materials not covered by an agreed specification from PP from pipes andfittings that are available in relevant quantities and intervals of time shall be permitted to be used alone or added tovirgin or own reprocessable material in any combination for production of pipes provided all of the followingconditions are met:

a) this material shall only be used for a specified intermediate layer of a type A1 pipe. Up to 100 % may be used;

b) when this material is used, the production shall be considered as at least one batch and shall be testedaccordingly;

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c) when determined in accordance with Table D.1, the melt mass-flow rate of the material shall not deviate morethan 20 % from the value of the virgin material. In the case that 100 % by mass is used the melt mass-flow rate ofthe material shall conform to Table 2;

d) the material shall be clean and free from visible contamination. Material filtering during palletising or extrusionshall be carried out;

e) the material of the end product shall conform to the requirements as specified in 4.3 and annex C;

f) the quantity of external reprocessable and/or recyclable material that is actually added in each productionseries shall be recorded by the pipe manufacturer.

D.3.2 Material from other PP products than pipes and fittings

External reprocessable and/or recyclable material from other PP products than pipes and fittings shall not be usedfor the production of pipes and fittings conforming to this standard.

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Annex E(normative)

Virgin PE material

The virgin material shall be PE to which are added those additives that are needed to facilitate the manufacture ofcomponents conforming to the requirements of this standard.

When calculated on the basis of a known formulation or, in case of dispute/not known formulation, determined inaccordance with EN ISO 3451-1 the PE content shall conform as applicable to item a) or item b) as follows:

a) The content of PE shall be at least 80 % by mass for pipes and 85 % by mass for injection-moulded fittings;

b) A further reduction of the PE content for a specified intermediate layer of type A1 pipes only is provided the PEis substituted by CaCO3 conforming to c)

c) The content of PE shall be ≥ 60 % by mass

d) CaCO3 may be used with or without coating as follows.

1) The composition of the CaCO3, before coating if any, shall conform to the following:




2) The physical properties of the material shall conform to the following:



Top cut finer than 20 µm ≥ 98 %


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Annex F(normative)

Utilisation of non-virgin PE material

F.1 Reprocessable and recyclable material from pipes and fittingsNOTE For the purpose of this annex the term pipes means extruded pipes and any parts of a fabricated fitting which is made from anextruded pipe. The term fitting means injection-moulded fittings and injection-moulded parts of a fabricated fitting.

The use of clean own reprocessable material from components complying to this standard for the production ofpipes and fittings shall be permitted without limitations.

F.2 External reprocessable and recyclable materials with an agreed specification

F.2.1 Material from PE pipes and injection moulded fittings

External reprocessable and recyclable materials with an agreed specification from PE from pipes and injectionmoulded fittings that are available in relevant quantities and intervals of time may be used alone or added to virginor own reprocessable or a mixture of those two materials for production of pipes (and injection moulded fittings, ifrelevant) provided all of the following conditions are met.

a) A specification for each material shall be agreed between the supplier of external reprocessable or recyclablematerial, the pipe manufacturer and, if applicable, the certification body. It shall at least cover the characteristicsmentioned in Table F1.

When determined in accordance with the test methods given in Table F.1, the actual values for thesecharacteristics shall conform to the agreed value and the permitted deviations shall conform to those given inTable F.1.

NOTE The quality system of the supplier of external reprocessable or recyclable material should conform to EN ISO 9001. For thepurposes of F.2.1, the manufacturer is responsible for claiming and ensuring that the quality plan conforms to or is no less stringent than therelevant requirements of EN ISO 9001. It is not essential for the manufacturer to be approved and registered for operation in accordance withEN ISO 9001.

b) Each delivery shall be covered by a certificate according to 3.1.B of EN 10204:1991, showing conformity to theagreed specification.


c) The maximum quantity of external reprocessable and/or recyclable material that will be added shall bespecified by the manufacturer.

d) The quantity of external reprocessable and/or recyclable material that is actually added in each productionseries shall be recorded by the manufacturer.

e) The material of the end product shall conform to the requirements as specified in 4.4 and annex E.

f) The material shall be clean and free from visible contamination. Material filtering during palletising or extrusionshall be carried out.

g) Type testing shall be carried out on the end product with the maximum specified amount and with each form ofexternal reprocessable or recyclable material with an agreed specification. Approved results shall be taken asproving conformity also of components containing lower levels of external or recyclable material.

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Table F.1 Specification of characteristics to be covered by the agreement and maximum permitteddeviations for these characteristics

Characteristic Unit Test method a

Maximum permitted deviation

Density kg/m3 ISO 1183 ± 5

E-modulus, secant 1 % MPa EN ISO 527-2, injection moulded or extruded samples

Min. as agreed b

Elongation at break % EN ISO 527-2, test piece type 1B at50 mm/min, injection moulded orextruded samples

Min. as agreed b , but

≥ 150 % for ρ ≥ 950 kg/m3

≥ 250 % for ρ < 950 kg/m3

Environmental stresscracking

c h EN ISO 4599, conditions as agreed b

As agreed b

Melt mass-flow rate g/10 min EN ISO 1133 conditions as agreed b

± 20 %

Ash residue % EN ISO 3451-1 Maximum as agreed b

Oxygen induction time min EN 728, T = 200 °C Min. as agreed, b

, but not lessthan 10 min

Source of the material d

As agreed b

Extraneous polymers % IR analyses ≤ 3% only PP, no other polymersidentified by documentation

Unmeltable particles % Mesh filtering [see F.2.1f) and F.3.1e)]

Max. as agreed b

Cadmium %e e

Volatile matterb

Max. as agreed b

a Samples shall be taken from the compounded and palletised or from each individual material batch source. Thefrequency of sampling shall be agreed between supplier and manufacturer and where relevant the certification body.b

Agreed between supplier and manufacturer and where relevant the certification body.c

Recommended test for high melt mass-flow material and contaminated material.d

The contents of all material shall be traceable and identifiable to the specification.e

For heavy metals e.g. cadmium, national regulations shall apply.

F.2.2 Material from products other than pipes and injection moulded fittings

External reprocessable and/or recyclable material from PE products other than pipes and injection moulded fittingsshall not be used for the production of pipes and injection moulded fittings conforming to this standard.

F.3 External reprocessable and recyclable materials not covered by an agreedspecification

F.3.1 Material from PE pipes and injection-moulded fittings

External reprocessable and recyclable materials not covered by an agreed specification from PE pipes andinjection moulded fittings that are available in relevant quantities and intervals of time shall be permitted to be usedalone or added to virgin or own reprocessable material in any combination for production of pipes provided all ofthe following conditions are met:

a) This material shall only be used for a specified intermediate layer of a type A1 pipe. Up to 100 % may be used.

b) When this material is used, the production shall be considered as at least one batch and shall be testedaccordingly.

c) When determined in accordance with Table F.1, the melt mass-flow rate of the material shall not deviate morethan 0,2 g/10 min from the value of the virgin material. In the case that 100 % by mass is used the melt mass-flowrate of the material shall conform to Table 3;

d) When determined in accordance with Table F.1 the density of the material shall not be less than the virginmaterial;

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e) The material shall be clean and free from visible contamination. Material filtering during palletising or extrusionshall be carried out;

f) The material of the end product shall conform to the requirements as specified in 4.4 and annex E.

g) The quantity of external reprocessable and/or recyclable material that is actually added shall be recorded bythe pipe manufacturer.

F.3.2 Material from other PE products than pipes and injection moulded fittings

External reprocessable and/or recyclable material from other PE products than pipes and injection moulded fittingsshall not be used for the production of pipes and injection moulded fittings conforming to this standard.

F.4 External reprocessable and recyclable material from PE rotational-moulded fittingsand other components

External reprocessable and recyclable materials of PE from

– rotational moulded fittings covered or not covered by an agreed specification

– other rotational moulded components covered by an agreed specification

That are available in relevant quantities and intervals of time shall be permitted to be added to virgin or ownreprocessable material for production of rotational moulded fittings only provided all of the following conditions aremet:

a) up to 5 % by mass may be used;

b) when this material is used, the production shall be considered as at least one batch and shall be testedaccordingly;

c) when determined in accordance with Table F.1, the melt mass-flow rate of the material shall not deviate morethan 20 % from the value of the virgin material;

d) when determined in accordance with Table F.1 the density of the material shall not be less than the virginmaterial;

e) the material shall be clean and free from visible contamination;

f) the material of the end product shall conform to the requirements as specified in 4.4 and annex E;

g) the quantity of reprocessable and/or recyclable material that is actually added shall be recorded by the fittingmanufacturer.

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Annex G(informative)

Characteristics of PVC-U, PP and PE pipes and fittings

G.1 General

EN 476 specifies the general requirements for components used in discharge pipes, drains and sewers for gravitysystems. Pipes and fittings conforming to this standard fully meet these requirements. Further the followinginformation is given.

G.2 Material characteristics

The materials of pipes and fittings conforming to this standard generally have the following characteristics, seeTable G.1.

Table G.1

Characteristic PVC-U PP PE Unit

Modulus of elasticity, E (1min) ≥ 3000 1250 or 1850 ≥ 800 MPa

Average density ≈ 1400 ≈ 900 ≈ 940 kg/m3

Average coefficient of linear thermal expansion ≈ 0,08 ≈ 0,14 ≈ 0,17 mm/mK

Thermal conductivity ≈ 0,16 ≈ 0,2 ≈ (0,36 to 0,50) WK−1m−1

Specific heat capacity ≈ (2300 to 2900) Jkg−1K−1

Surface resistance > 1012 > 1012 > 1013 Ω

G.3 Chemical resistance

Piping systems conforming to this standard are resistant to corrosion by water with a wide range of pH-values suchas domestic wastewater, rainwater, surface water and ground water. If piping systems conforming to this standardare to be used for chemically contaminated wastewaters, such as industrial discharges, chemical and temperatureresistance should be taken into account.

For information about the chemical resistance of PVC, PP and PE materials guidance is given in ISO/TR 10358and for rubber materials in ISO/TR 7620.

G.4 Abrasion resistance

Pipes and fittings conforming to this standard are resistant to abrasion. For special circumstances, the abrasioncan be determined from the test method given in EN 295-3.

G.5 Hydraulic roughness

The internal surfaces of pipes and fittings conforming to this standard are hydraulically smooth. The design of jointsand fittings ensure good hydraulic performances. For further information about hydraulic capacity of pipes andfittings conforming to this standard it is recommended to refer to the manufacturer’s information.

G.6 Diametric deflection

In normal installation conditions, the expected average deflection of the inside diameters of the pipes will be lessthan 8 %.

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Annex H(informative)

Survey of possible use of reprocessable and recyclable material

A survey of possible use of reprocessable and recyclable material is given in Table H.1.

Table H.1

Reprocessable and recyclablematerial from pipes and fittings

Reprocessable and recyclablematerial from non pipes and

fittings

Material Description

With agreedspecification

Without agreedspecification

With agreedspecification

Without agreedspecification

See subclause B.2.1 B.3.1 B.2.2 B.3.2

Specifiedintermediatelayer

Up to 100 % Up to 100 % From bottlesand windowframes up to100 %

Not permitted

Other layers Up to 100 % 5 or 10 % Not permitted Not permitted

PVC-U

Fittings Not permitted Not permitted Not permitted Not permitted

See subclause D.2.1 D.3.1 D.2.2 D.3.2


Up to 100 % Up to 100 % Not permitted Not permitted

Other layers Up to 100 % Not permitted Not permitted Not permitted

PP

Fittings Up to 100 % Not permitted Not permitted Not permitted

See subclause F.2.1 F.3.1 F.2.2 F.3.2


Up to 100 % Up to 100 % Not permitted Not permitted

Other layers Up to 100 % Not permitted Not permitted Not permitted

PE

Fittings Injectionmoulded

Up to 100 % Not permitted not permitted Not permitted

See subclause F.4 F.4 F.4 F.4

PE FittingsRotationalmoulded

Up to 5% Up to 5% Up to 5% Not permitted

NOTE The development in recycling technology is expected to make it possible to extend the permitted use of reprocessable andrecyclable materials in the future. When this becomes relevant amendments to this standard will be published.

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Bibliography

[1] EN 295-3, Vitrified clay pipes and fittings and pipe joints for drains and sewers Part 3: Test methods

[2] EN ISO 9001, Quality management systems – Requirements (ISO 9001:2000).

[3] ISO 265-1, Pipes and fittings of plastics materials Fittings for domestic and industrial waste pipes - Basicdimensions: Metric series Part 1: Unplasticized poly(vinyl chloride) (PVC-U)

[4] ISO/TR 7620, Rubber materials — Chemical resistance

[5] ISO/TR 10358, Plastics pipes and fittings Combined chemical resistance classification tableRAL 840-HR, Colour register

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