570-1.a.2-famil

API 570 online 1.A.2 updated July 2010

MODULE 1.A.2 API 574 FAMILIARISATION

API 574 FAMILIARITY, CONTENT AND TERMINOLOGY

Module Reference: Distance learning 1.A.2

Primary purpose of

this module

To take the first steps in becoming familiar with the

layout and contents of API 574

Secondary purpose

of this module

To understand some of the specific technical content

that forms the backbone of API 574

Suggested learning

time 3 hrs

Documents needed API 574/570:2009 Editions

Self-test papers

included 2 x 5 questions + 1 x 10 questions

MODULE INTRODUCTION

This module is about learning to become familiar with the layout and contents of API

574.It is a code that is strongly linked to API 570 and, in some areas, contains some of

the same information that appears in API 570.We saw in the previous module how

this linking of codes is a feature of the API/ASME approach to plant inspection (and

the API certification exams)

API 574 is divided into 12 sections (sections 1 to 12) and one single-page Annex. The

body of the text (i.e. sections 1 –12) contain a large number of tables and figures;

mainly sketches of piping components, interspersed with a few tables about pipe

schedule wall thicknesses etc.

The API 570 examination syllabus requires candidates to have knowledge of sections

effectively all of the 12 sections. Hence API 574 is seen as a ‘general piping

knowledge’ part of the API 570 certification syllabus. Fortunately, understanding the

12 sections is not as difficult as it first appears. In layout, API 574 is a heavily

unbalanced code i.e. a few sections (particularly section 10 covering inspection

procedures) are quite long, up to 27 pages, while most of them (sections 1, 2, 3, 5, 8

and 9,) are each only a few pages long. In practice, sections 1, 2 and 3 are little more

than preliminaries to the code and don’t contain much new information.

We will approach API 574 from a section-by-section viewpoint, to build a general

understanding of its content. The method of doing this will be to combine reading of

important sections of the document and then attempting questions on the content.


Re-run the presentation as required, until you’ve got a good idea about how API 570

and API 574 cross-reference each other and how they contain similar and related

technical requirements.

FIRST STEP

Review this powerpoint presentation reminding

you how API 574 works together with other codes

and where it is referenced from API 570

Ppt1 Click here

NEXT STEP

First review the contents/index page of API 574

noting broadly what is in it. Note the main

sections that we are interested in; sections 4 to 12.

Next, read through the document once, trying to

get a feel for its content, rather than

understanding it all. As you read, note

particularly the following areas:

Q1.In section 4.1: Piping; note the system for defining pipe

sizes and tolerances. It is guaranteed you will need to use

these in the API 570 exam

Q2. In section 7 :Inspection Plans; note the inspection

locations listed in section 7.4.Note how these are the same as

those shown in API 570 but with a couple of additional ones

added.

Q3.Note the breakdown of content of section 10: Inspection

procedures. This is a long chapter, containing quite a lot of

general inspection information. Check it through carefully,

marking any areas that you don’t think you could recall

from your existing inspection experience.

570-1.a.2-related-codes-ppt.pdf


API 574 Section 4: PIPING COMPONENTS

Read through API 574 section 4 paying particular attention to the following topics:

How pipe sizes and wall thicknesses are defined. In section 4.1,look at table

1, table 2 (for stainless steel pipe) and table 3 on tolerances

The different types of valves in section 4.3.You need be able to recognise them, not draw them.

The flanges and fittings in figures 9,12 and 13.These are important as they

are covered by many of the data tables in ASME B16.5

Once you feel that you have absorbed the subject matter, try the starter questions in

QS1

API 574 Section 7: INSPECTION PLANS


The use of corrosion circuits to help manage the inspections, calculations and record keeping relating to piping inspection. Section 7.3.3 identifies

various parameters that can be considered when identifying corrosion circuits.

The 15 areas/locations of degradation listed in section 7.4.Remember that many of them are repeats from a similar list in API 570.The last one in the list

(o)dew-point corrosion has just been added in this latest edition of API 570.

The content of fig 17,which shows TMLs (new terminology is CMLs remember)marked-up on a piping circuit diagram and section 7.4.1 about the

inspection of injection points

AND THEN

Read each of the following sections again, one at a time and try the five following

sets of ‘starter’ questions associated with each (click the relevant QS arrow). Treat

them as closed-book questions, and keep repeating them until you get them all

correct

QS1 Q1

http://www.matthews-training.co.uk/onlinecourses/mod/quiz/view.php?id=27


Once you feel that you have absorbed the subject matter, try the starter questions in

QS2

API 574 Section 10: INSPECTION PROCEDURES AND PRACTICES


Thickness measurements: Section 10.2.Concentrate on the explanations of the limitations of UT various thickness measurement techniques. This section

has been significantly expanded in the new edition of the code and now

contains quite a lot of technical detail. This makes it useful source material for

exam questions.

Radiographic inspection: Section 10.2.2. This gives a brief summary of the

types of RT techniques that can be useful in piping inspection. There is a

degree of overlap with the content of ASME V, but it is a more simplified version.

Pressure tests: Section 10.5.2,which explains the reason for pressure testing

and some of its limitations

Once you feel that you have absorbed the subject matter, try the 10 starter questions in

QS3

QS2 click here

QS3 click here



570-1.a.2-famil

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