NATIONAL BOARD INSPECTION CODE

SUBCOMMITTEE ON INSPECTION

MINUTES Meeting of January15, 2014

San Antonio, Texas

These minutes are subject to approval and are for committee use only. They are not to be duplicated or quoted for other than committee use.

The National Board of Boiler & Pressure Vessel Inspectors 1055 Crupper Avenue

Columbus, Ohio 43229-1183 Phone: (614)888-8320 Fax: (614)847-1828

MINUTES OF SUBCOMMITTEE ON INSPECTION January 15, 2014 San Antonio, Texas

1. Call to Order

The Chairman Mark Mooney called the meeting to order at 8:00 AM on January 15, 2014.

2. Announcements a) The National Board would host a reception on January 15, 2014 at the Alamo from 5:30 - 7:30 PM b) The National Board would provide a Continental Breakfast on January 16, 2013 from 7:00 - 8:00 AM

3. Adoption of the Agenda A motion was made to adopt the Agenda as modified. The motion was unanimously approved.

4. Approval of the Minutes of January, 2013

A motion was made to approve the minutes of the July, 2013 meeting. The motion was unanimously approved.

5. Review of the Roster The attendees, members, alternates and guests are identified on Attachment 1. With the attached attendance listing, a quorum was established. Mr. Riley was excused. Mark Horbaczewski, Robert Dobbins and Ralph Pate were reappointed to SG on Inspection-General. Robert Dobbins was reappointed to SG on Inspection-Specific. Darrell Graf and Dominic Canonico were elected to SG on Inspection-Specific.

6. Inquiries There were no Inquiries assigned to this subcommittee.

7. Action Items NB07-0910 Part 2 S-6 SG Inspection Specific Review DOT supplement. A Task Group comprised of S. Staniszewski (PM), G. McRae, and J. Riley is assigned

A progress report was given by Mr. Staniszewski. (Attachment 2)

NB10-0601 Part 2 S9, SG on Fiber Reinforced Plastic - Inspection of high pressure composite vessels. No report available.

NB11-0204 Part 2 &3 Supplement 2 SG on Historical Boilers Review NDE requirements of stayed areas. A Task Group consisting of M. Wahl (PM), J. Larson and F. Johnson was assigned. A report was given by Mr. Reetz. NB11-1101 Part 2 S2.6.2 b) SG on Historical Boilers This section should be revised to provide more guidance for evaluating local pitting corrosion versus general corrosion. A Task Group consisting of M. Wahl and Don Cook was assigned. A report was given by Mr. Reetz. A motion was made to accept the items presented. The motion was unanimously approved. (Attachment 3) NB12-1501 Part 2 SG Inspection General - Review inspection requirements so as to align with installation requirements in Part 1. A Task Group of V. Newton, M. Horbaczewski, J. Daiber and J. Safarz was assigned. A progress report was given by Mr. Newton. The Task Group is currently working on CO2 NB12-1801 Part 2 5.5.2 – 5.5.3 SG Inspection Specific - Replacement of Stamping during inservice inspection. A Task Group consisting of M. Mooney (PM), R. Dobbins, T. Barker, D. Canonico, and Daren Daily was assigned. A report was given by Mr. Mooney. A motion was made to accept the items presented. The motion passed( 9) approved, (2 ) Disapproved, (1 )Abstain. (Attachment 4) NB13-0701 Part 2 4.4.7 (j), SG Inspection General Revise wording to clarify the rule in this section. A Task Group consisting of J. Riley (PM), M. Schwartzwalder, & M. Clark was assigned by the Subgroup. A progress report was given by Mr. Mooney.

Action Items (Continued) NB13-0801 Part 2, SG on Inspection Specific Review inspection requirements for CO2 Tanks. A Task Group consisting of V. Newton (PM), R. Pate, and others was assigned. A report was given by Mr. Newton. A motion was made to accept the item presented. The motion was unanimously approved. (Attachment 5) NB13-0901 SG on Historical Boilers Review requirements for safety valve discharge piping. A Task Group consisting of F. Johnson and T. Dillon was assigned. A report was given by Mr. Reetz. A motion was made to accept the item presented. The motion was unanimously approved. (Attachment 6) NB13-0902 SG on Historical Boilers Review alternate methods of Tube Sheet repair. A Task Group consisting of F. Johnson, T. Dillon and M. Wahl was assigned. A progress report was given by Mr. Reetz. NB13-0903 Part 2, S2.14 SG on Historical Boilers Add language to address the safety concerns when using liquid or gaseous fuels to fire a historical boiler. A Task Group consisting of R. Reetz (PM), T. Dillon, R. Bryce, and J. Larson was assigned. A progress report was given by Mr. Reetz. The chairman of the SG will inquire of the action item originator for clarification and direction for the Task Group.

NB13-1002 Part 2 SG on Insp. Spec. – Review inspection requirements for B31.1 Power Piping. Mr. Joe Frey gave a presentation on B31.1 Power Piping. A Task Group consisting of Mike Schwartzwalder (PM), Joe Frey, Venus Newton, Mark Mooney, Domenic Canonico, John Richardson, Mark Horbaczewski, Marshall Clark and Robbie Dobbins was assigned. A progress report was given by Mr. Schwartzwalder. NB13-1201 Part 2, 2.2.10.6 SG Inspection General This action is a result of PRC PR13-0209 from Francis Brown. His comment stated, “ The NBIC is supposed to be a safety Code, so why is it a “good practice” only a “good practice” if required by a Jurisdiction? For example, 2.2.10 6a) is or is not that practice a “good practice” mandatory, but without the Jurisdictional requirement a good practice is optional with the owner/user. This section should be revised to indicate “good practices” should be complied with but are mandatory when required by the Jurisdiction. A task group consisting of M. Mooney(PM), V. Newton and J. Safarz was assigned. No action to report at this meeting. NB13-1301 Part 2 SG Inspection General Review methods of Finite Element Analysis as they pertain to inspection. A Task Group consisting of J. Riley(PM), Stan Staniszewski, M. Schwartzwalder, M. Mooney and R. Pate was assigned. A progress report was given by Mr. Mooney. NB13-1302 Part 2 SG Inspection General Review Cryogenic vessel inspection requirements. A Task Group consisting of J. Riley(PM), A. Renaldo, R. Dobbins, R. Bartley and R. Pate was assigned. A progress report was given by Mr. Mooney. NB13-1303 Part 2 SG Inspection General Review Inspection requirements for Biomass Fueled Boilers. A Task Group consisting of M. Mooney(PM), M. Horbaczewski, D. Canonico, and J. Safarz was assigned. A progress report was given Mr. Mooney. NB13-1404B Part 2, SG on LB - Fillet welded staybolts. A progress report was given by Mr. Reetz. No action at this time. NB13-1409 Part 2, SG on LB - Method for analyzing bulges created by overheating in stayed boiler surfaces. A progress report was given by Mr. Reetz. No action at this time. NB13-1701 Part 2, 2.3.6.6 - SG Inspection Specific - Inspection requirements for wire wound pressure vessels. A Task Group consisting of R. Dobbins (PM), M. Mooney, J. Riley, V. Scarcella and G. Galanes was assigned. No action to report at this meeting. NB14-0501 Part 2 Update index to Part 2. A Task Group consisting of D. Canonico and M. Mooney was assigned. A progress report was given by Mr. Mooney. No action at this time.

Action Items (Continued) NB14-0901 Part 2 SG on Insp. Spec. – Inspection of High Pressure Vessels. After review of the inquiry, it was determined that the Jurisdictional Authority has final precedence concerning activity within their jurisdiction. A motion was made to close the item with no action taken. The motion was unanimously approved. NB14-1001 Part 2, 5.2.1 SG on Insp. Spec.. – The NBIC does not address replacement of duplicate nameplates where the original nameplate is intact and attached to an inner vessel and may or may not be visible. A report was given by Mr. Mooney. A motion was made to accept the proposed text. The motion was unanimously approved.. (Attachment 7) NB14-1201 Part 2, S2.10.3 SG on Historical Boilers Delete paragraph S2.10.3 and replace with suggested wording. The Sub Group reviewed the request and associated documentation and determined that the existing notes and table on efficiencies in S2.10.3 were correct. A motion was made to close the action item with no action taken. The motion was unanimously approved.

8. New Business

9. Future Meetings

July 14-17, 2014 Columbus, Ohio January 19-22, 2015 Orlando, Florida

10. Adjournment

The meeting was adjourned at 10:30 AM on January 15, 2014. Respectfully Submitted, Bill Smith Secretary, Subcommittee on Inspections Attachment 1- Attendance Roster Attachment 2- NB07-0910 Attachment 3- NB11-1101 Attachment 4- NB12-1801 Attachment 5- NB13-0801 Attachment 6- NB13-0901 Attachment 7- NB14-1001

      Attachment 2 

NB07-0910 Janaury 2014

Status Report on DOT Rulemaking Activities:

DOT published a Notice of Proposed Rule Making (NPRM) to incorporate by reference into regulations the latest edition (2013) of the NBIC and ASME Section XII as an option to the currently required 1998 edition of the ASME Code and 1992 Edition of the NBIC. A public comment period is now open for 80 days from date of publication, until March 31, 2014. See attached screen shot.

For electronic access got to the following:

https://www.federalregister.gov/articles/2013/12/30/2013-31046/hazardous-materials-adoption-of-asme-code-section-xii-and-the-national-board-inspection-code

      Attachment 2 

After the close of the comment period, DOT will once again review the comments and questions submitted, and evaluate any new information presented and determine its final regulatory approach.

Further rule making, will address the comments received, and indicate the government’s preferred regulatory approach with additional specific regulatory text and changes to the existing text if needed.

Attachment 3

1

Subject: Part 2, Supplement 2, S2.6.2 – Ultrasonic Thickness Testing

File Number: NB11-1101

Proposal: Add more information for the evaluation of local pitting corrosion versus general corrosion.

Explanation:

a) Add a new section S2.6.3 to better define the evaluation of corrosion and the effects on MAWP.

b) Remove Note b) from S2.6.2

New Proposed text for S2.6.3

S2.6.3 Evaluation of corrosion

S2.6.3.1 Line and Crevice Corrosion

Line and Crevice corrosion may be disregarded for MAWP calculations when:

a) The thickness of the remaining material is at least 75% of the required thickness per the MAWP calculations.

b) The total length does not exceed 2 inches (50 mm).

S2.6.3.2 Widely Scattered Pits

Widely scattered corrosion pits may be disregarded for MAWP calculations when: a) The depths of the pits are such that the remaining material shall not be less than 50%

of the required thickness per the MAWP calculations. b) The total area of pits, below the required thickness per the MAWP calculations, does

not exceed 7 sq. inches (4500 sq. mm) within any 50 sq. inches (32000 sq. mm) area. c) Total length of pits in an 8 inch (200 mm) straight line cannot exceed 2 inches (50

mm).

S2.6.3.3 Locally Thinned Areas

Locally thinned areas (LTA), 3 inch (75 mm) in diameter or less, may be disregarded for MAWP calculations when:

Attachment 3

2

a) The average depth of the corrosion is such that remaining material shall not be less than 75% of the required thickness per the MAWP calculations.

b) The thickness at the thinnest point shall not be less than 50% of the required thickness per the MAWP calculations.

c) The minimum distance between the boundaries of two locally thinned areas (MDLTA) must be greater than the average diameters of the two locally thinned areas (LTA) multiplied by 3.0. See Figure S2.6.3.3

S2.6.3.4 Generalized Thinned Areas

For corroded area’s exceeding the specifications in S2.6.3.1, S2.6.3.2, and S2.6.3.3, the thickness may be averaged over an area not exceeding the UT grid size specified in S2.6.2 c) and S2.6.2 d). The thickness at the thinnest point shall not be less than 50% of the required thickness per the MAWP calculations and the average shall not be less than 75% of the required thickness per the MAWP calculations.

When general corrosion is identified the exceeds the limits set forth in this paragraph the pressure vessel MAWP shall be de-rated to meet these requirements, or removed from service until it is repaired by a qualified organization.

Note: These guidelines in S2.6.3.1, S2.6.3.2, S2.6.3.3 and S2.6.3.4 are to be used in areas of thinning due to corrosion. Area’s where plates have been formed to make corners and radius will be thinned due to the forming process and should not be taken into account when calculating MAWP.

Figure S2.6.3.3 Locally Thinned Areas

Attachment 3

3

Proposed changes to text for S2.6.2

Remove this text (b) from S2.6.2

Attachment 4

CURRENT FORM NB-136 REPLACEMENT OF STAMPED DATA FORM

in accordance with provisions of the National Board Inspection Code Submitted to Submitted by

_____________________________________ _____________________________________ (name of jurisdiction) (name of owner)

_____________________________________ _____________________________________ (address) (address)

_____________________________________ _____________________________________

_____________________________________ _____________________________________ (telephone no.) (telephone no.)

1. Manufactured by _________________________________________________________________ (name and address)

2. Manufactured for _________________________________________________________________ (name and address)

3. Location of Installation ____________________________________________________________ (address) 4. Date Installed ___________________________________________________________________

5. Previously installed at _____________________________________________________________

6. Manufacturer’s Data Report Attached No Yes

7. Item registered with National Board No Yes, NB Number _____________________

8. Item identification Year built _________________

Type ____________________________________ Dimensions ________________

Mfg. Serial no. ____________________________ Jurisdiction no. _____________

MAWP _________________ psi Safety relief valve set at _________________psi

9. Complete the reverse side of this report with a true facsimile of the legible portion of the nameplate

10. If nameplate is lost or illegible, documentation shall be attached identifying the object to th e Manufacturer’s Data Report referenced on this form.

11. I request authorization to replace the stam ped data and/or nameplate on the above described pressure-retaining item in accordance with the rules of the National Board Inspection Code (NBIC).

Owner or User’s name

Signature _____________________________________________ Date ____________________

Title ___________________________________________________________________________ ______________________________________________________________________________

12. Authorization is granted t o replace the stam ped data or to replace the nameplate of the above described pressure-retaining item.

Signature _____________________________________________ Date ____________________ (chief inspector or authorized representative)

Jurisdiction _____________________________________________________________________

Attachment 4 The following is a true facsimile of the legible portion of the item’s nameplate. Please print. Where possible, also attach a rubbing of the nameplate.

(Back)

I certify that to the best of my knowledge and belief, the statements in this report are correct, and that the replacement information, data, and identification numbers are correct and in accordance with provisions of the National Board Inspection Code. Attached is a facsimile or rubbing of the stamping or nameplate. Name of Owner or User _______________________________________________________________

Signature _______________________________________________ Date ______________________ (Authorized representative)

Witnessed by ____________________________________________ Employer __________________ (Name of inspector)

Signature _________________________________ Date ________ NB Commission ____________ (Name of inspector)

Attachment 4

PROPOSED CHANGES TO FORM NB-136 REPLACEMENT OF STAMPED DATA FORM, NB-136

in accordance with provisions of the National Board Inspection Code Submitted to: Submitted by;

_____________________________________ _____________________________________ (name of jurisdiction) (name of owner, user, or certificate holder)

_____________________________________ _____________________________________ (address) (address)

_____________________________________ _____________________________________

_____________________________________ _____________________________________ (telephone no.) (telephone no.)

1. Manufactured by _________________________________________________________________ (name and address)

2. Manufactured for _________________________________________________________________ (name and address)

3. Location of Installation ____________________________________________________________ (address) 4. Date Installed ___________________________________________________________________

5. Previously installed at _____________________________________________________________

6. Manufacturer’s Data Report Attached No Yes

7. Item registered with National Board No Yes, NB Number _____________________

8. Item identification Year built _________________

Type ____________________________________ Dimensions ________________

Mfg. Serial no. ____________________________ Jurisdiction no. _____________

MAWP _________________ psi Safety relief valve set at _________________psi

9. Complete the reverse side of this report with a true facsimile of the legible portion of the nameplate or:

10. If nameplate is lost or illegible, traceability documentation, verified by the Inspector, shall be attached to this report. identifying the object. to the Manufacturer’s Data referenced on this form.

11. I request authorization t o replace the stam ped data and/or na meplate on the above de scribed pressure-retaining item in accordance with the rules of the National Board Inspection Code (NBIC).

Owner or User’s Organization Name “R” Certificate Holder’s Name: Number ___________________

Signature _____________________________________________ Date ____________________

Title ___________________________________________________________________________ Verification of Traceability _________________ ________ NB Commission ____________ (Name of inspector)

12. Authorization is granted t o replace the stam ped data or to replace the nameplate of the above described pressure-retaining item.

Signature _____________________________________________ Date ____________________ (chief inspector or authorized representative)

Jurisdiction (if available) or NB Commission number ____________________________________

Attachment 4 The following is a true f acsimile of t he legible portion of the item’s original na meplate, (if available). Pleas e print. Where possible, also attach a rubbing or picture of the nameplate. The following is a true facsimile of the item’s replacement stamping or nameplate

(Back)

I certify that to the best of my knowledge and belief, the statements in this report are correct, and that the replacement information, data, and identification numbers are correct and in accordance with provisions of the National Board Inspection code. Attached is a facsimile or rubbing of the stamping or nameplate. Name of Owner or User “R” Certificate Holder __________________________________________ Number

Signature _______________________________________________ Date ______________________ (Authorized representative)

Witnessed by ____________________________________________ Employer __________________ (Name of inspector)

Signature _________________________________ Date ________ NB Commission ____________ (Name of inspector)

ADDED

Attachment 4

PROPOSED FORM NB-136 REPLACEMENT OF STAMPED DATA FORM, NB-136

in accordance with provisions of the National Board Inspection Code Submitted to: Submitted by

_____________________________________ _____________________________________ (name of jurisdiction) (name of owner, user, or certificate holder)

_____________________________________ _____________________________________ (address) (address)

_____________________________________ _____________________________________

_____________________________________ _____________________________________ (telephone no.) (telephone no.)

1. Manufactured by _________________________________________________________________ (name and address)

2. Manufactured for _________________________________________________________________ (name and address)

3. Location of Installation ____________________________________________________________ (address) 4. Date Installed ___________________________________________________________________

5. Previously installed at _____________________________________________________________

6. Manufacturer’s Data Report Attached No Yes

7. Item registered with National Board No Yes, NB Number _____________________

8. Item identification Year built _________________

Type ____________________________________ Dimensions ________________

Mfg. Serial no. ____________________________ Jurisdiction no. _____________

MAWP _________________ psi Safety relief valve set at _________________psi

9. Complete the reverse side of this report with a true facsimile of the legible portion of the nameplate or:

10. If nameplate is lost or illegible, traceability documentation, verified by the Inspector, shall be attached to this report.

11. I request authorization t o replace the stam ped data and/or na meplate on the above de scribed pressure-retaining item in accordance with the rules of the National Board Inspection Code (NBIC).

“R” Certificate Holder: Number _________________

Signature _____________________________________________ Date ____________________

Title ___________________________________________________________________________ Verification of Traceability _________________ ________ NB Commission ____________ (Name of inspector)

12. Authorization is granted t o replace the stam ped data or to replace the nameplate of the above described pressure-retaining item.

Signature _____________________________________________ Date ____________________ (chief inspector or authorized representative)

Jurisdiction (if available) or NB Commission number ____________________________________

Attachment 4 The following is a true f acsimile of t he legible portion of the item’s original na meplate, (if available). Pleas e print. Where possible, also attach a rubbing or picture of the nameplate. The following is a true facsimile of the item’s replacement stamping or nameplate

I certify that to the best of my knowledge and belief, the statements in this report are correct, and that the replacement information, data, and identification numbers are correct and in accordance with provisions of the National Board Inspection code. “R” Certificate Holder ______________________________ Number

Signature _______________________________________________ Date ______________________ (Authorized representative)

Witnessed by ____________________________________________ Employer __________________ (Name of Inspector)

Signature _________________________________ Date ________ NB Commission ____________ (Name of Inspector)

Attachment 4 (Back)

      Attachment 4 

CURRENT WORDING – NBIC Part 2, SECTION 5 5.2 – 5.3.1 5.2    REPLACEMENT OF STAMPING DURING INSERVICE INSPECTION  

5.2.1    AUTHORIZATION  

a) When the stamping on a pressure‐retaining item becomes indistinct or the nameplate is lost, illegible, or detached, but traceability to the original pressure‐retaining item is still possible, the Inspector shall instruct the owner or user to have the stamped data replaced.  All re‐stamping shall be done in accordance with the original code of construction, except as modified herein.  Requests for permission to re‐stamp or replace nameplates shall be made to the Jurisdiction in which the pressure‐retaining item is installed.  Application must be made on the Replacement of Stamped Data Form, NB‐136 (see 5.3.2).  Proof of the original stamping and other such data, as is available shall be furnished with the request.  Permission from the Jurisdiction is not required for the reattachment of nameplates that are partially attached.  When traceability cannot be established, the Jurisdiction shall be contacted. 

 b)  When there is no Jurisdiction, the replacement of stamped data shall be authorized and 

witnessed by a National Board Commissioned Inspector and the completed Form NB‐136 (see 5.3.2) shall be submitted to the National Board. 

 

5.2.2      REPLACEMENT OF STAMPED DATA  a) The re‐stamping or replacement of data shall be witnessed by a National Board Commissioned 

Inspector and shall be identical to the original stamping.  

b) The Re‐stamping or replacement of a code symbol stamp shall be performed only as permitted by the governing code of construction. 

 

c) Replacement nameplates shall be clearly marked “replacement”.  

5.2.3      REPORTING    Form NB‐136 shall be filed with The National Board  by the “R” Stamp holder, bearing a facsimile of 

the replacement stamping or nameplate, as applied, and shall also bear the signatures of the Authorizing Jurisdiction, the National Board Commissioned Inspector who witnessed the replacement, and the “R” Stamp holder that performed the replacement.  Form NB‐136 shall filed with their Local Jurisdiction (if required) by the owner or user. 

 

5.3      NATIONAL BOARD INSPECTION FORMS 

5.3.1      SCOPE 

The following forms may be used for documenting specific requirements as indicated on the top of 

each form. 

  Note: Jurisdictions may have adopted other forms and may not accept these forms. 

      Attachment 4 

PROPOSED CHANGES – NBIC Part 2, SECTION 5 5.2 – 5.3.1 5.2    REPLACEMENT OF STAMPING OR NAMEPLATE DURING INSERVICE INSPECTION  

5.2.1   AUTHORIZATION a) When the stamping on a pressure‐retaining item becomes indistinct or the nameplate is lost, 

illegible, or detached, but traceability to the original pressure‐retaining item is still possible, the Inspector shall instruct the owner or user to have the nameplate or stamped data replaced.  All re‐stamping shall be done in accordance with the original code of construction, except as modified herein.  Requests for permission to re‐stamp or replace nameplates shall be made to the Jurisdiction in which the pressure‐retaining item is installed. nameplate or stamping is re‐applied.  Application must be made on the Replacement of Stamped Data Form, NB‐136 (see 5.3.2).  Proof of traceability to the original nameplate or stamping, and other such data, as is available, shall be furnished with the request.  Permission from the Jurisdiction is not required for the reattachment of nameplates that are partially attached.  When traceability cannot be established, the Jurisdiction shall be contacted.  The completed Form NB‐136 (see 5.3.2) shall be submitted to the National Board. 

 b)  When there is no Jurisdiction, the traceability shall be accepted and the replacement of the 

nameplate or stamped data shall be authorized and witnessed by a National Board Commissioned Inspector. and tThe completed Form NB‐136 (see 5.3.2) shall be submitted to the National Board. 

 

5.2.2     REPLACEMENT OF NAMEPLATE OR STAMPED DATA a) The re‐stamping or replacement of data shall be witnessed by a National Board Commissioned 

Inspector. and shall be identical to the original stamping.  

b) The Re‐stamping or replacement of a code symbol stamp shall be performed only as permitted by the governing code of construction. 

 

c) Replacement nameplates shall be clearly marked “replacement”.  

5.2.3      REPORTING   Form NB‐136 shall be filed with the Jurisdiction by the owner or user (if required) or and tThe 

National Board by the “R” Stamp Holder owner or user together with bearing a facsimile of the replacement stamping or nameplate, as applied, and shall also bear the signature of the “R” Stamp holder that performed the replacement and the National Board Commissioned Inspector who authorized and witnessed the replacement. 

 

5.3      NATIONAL BOARD INSPECTION FORMS 

5.3.1      SCOPE 

The following forms (5.3.2 through 5.3.7.1) may be used for documenting specific requirements as 

indicated on the top of each form. 

  Note: Jurisdictions may have adopted other forms and may not accept these forms. 

      Attachment 4 

 

PROPOSED WORDING – NBIC Part 2, SECTION 5 5.2 – 5.3.1 5.2    REPLACEMENT OF STAMPING OR NAMEPLATE  5.2.1   AUTHORIZATION 

a) When the stamping on a pressure‐retaining item becomes indistinct or the nameplate is lost, illegible, or detached, but traceability to the original pressure‐retaining item is still possible, the Inspector shall instruct the owner or user to have the nameplate or stamped data replaced.  All re‐stamping shall be done in accordance with the original code of construction, except as modified herein.  Requests for permission to re‐stamp or replace nameplates shall be made to the Jurisdiction in which the nameplate or stamping is re‐applied.  Application must be made on the Replacement of Stamped Data Form, NB‐136 (see 5.3.2).  Proof of traceability to the original nameplate or stamping, and other such data as is available, shall be furnished with the request.  Permission from the Jurisdiction is not required for the reattachment of nameplates that are partially attached.  When traceability cannot be established, the Jurisdiction shall be contacted.  The completed Form NB‐136 (see 5.3.2) shall be submitted to the National Board. 

 b)  When there is no Jurisdiction, the traceability shall be accepted and the replacement of the 

nameplate or stamped data shall be authorized and witnessed by a National Board Commissioned Inspector. The completed Form NB‐136 (see 5.3.2) shall be submitted to the National Board. 

 

5.2.2     REPLACEMENT OF NAMEPLATE OR STAMPED DATA a) The re‐stamping or replacement of data shall be witnessed by a National Board Commissioned 

Inspector. b) The Re‐stamping or replacement of a code symbol stamp shall be performed only as permitted 

by the governing code of construction. c) Replacement nameplates shall be clearly marked “replacement”. 

 

5.2.3      REPORTING   Form NB‐136 shall be filed with the Jurisdiction by the owner or user (if required) and the National 

Board by the “R” Certificate Holder bearing a facsimile of the replacement stamping or nameplate, as applied, and shall also bear the signature of the “R” Stamp holder that performed the replacement and the National Board Commissioned Inspector who authorized and witnessed the replacement. 

 

5.3      NATIONAL BOARD INSPECTION FORMS 

5.3.1      SCOPE 

The following forms (5.3.2 through 5.3.7.1) may be used for documenting specific requirements as 

indicated on the top of each form. 

  Note: Jurisdictions may have adopted other forms and may not accept these forms. 

 

      Attachment 5 

NBIC Part 2 2.3.6.8 INSPECTION OF LIQUID CARBON DIOXIDE STORAGE VESSELS

A) This section provides requirements for the inspection of Liquid Carbon Dioxide Storage Vessels (LCDSV’s), fill boxes, fill lines and pressure relief discharge/vent circuits used for carbonated beverage systems, swimming pool PH control systems and other fill in place systems of liquid CO2.

B) General Requirements (enclosed and unenclosed areas)

The Inspector shall verify that:

a. LCDSV’s are not located within 10 feet (3050 mm) of elevators, unprotected platform ledges or other areas where falling would result in dropping distances exceeding half the container height.

b. LCDSV’s are installed with sufficient clearance for filling, operation, maintenance, inspection and replacement.

c. LCDSV’s are not installed on roofs. d. LCDSV’s are safely supported. e. LCDSV’s are not located within 36 in. (915 mm) of electrical service panels. f. LCDSV’s located outdoors in areas in the vicinity of vehicular traffic are

guarded to prevent accidental impact by vehicles.

C) Enclosed area LCDSV Installations The Inspector shall verify that:

1) Permanent LCDSV installations with remote fill connections: a. Are equipped with a gas detection system installed in accordance with NBIC Part 2 XX; b. Have signage posted in accordance with NBIC Part 12 XX c. Are equipped with fill boxes; fill lines and pressure relief/vent valve circuits installed in accordance with NBIC Part 2 XX 2) Portable LCDSV installations with no permanent remote fill connection:

Warning: LCDSV’s shall not be filled indoors or in enclosed areas under any circumstances. Tanks must always be moved to the outside to an unenclosed, free airflow area for filling. a. Are equipped with a gas detection system installed in accordance with NBIC Part 2 XX; b. Have signage posted in accordance with NBIC Part 2 XX; c. Have a pressure relief/vent valve circuit connected at all times except when the tank is being removed for filling. Connections may be fitted with a quick disconnect fitting meeting the requirements of NBIC Part 2 XX; d. Are provided with a pathway that provides a smooth rolling surface to the outdoor, unenclosed fill area. There shall not be any stairs or other than minimal inclines in the pathway.

      Attachment 5 

D) FILL BOX LOCATION / PRESSURE RELIEF/VENT VALVE CIRCUIT TERMINATION The Inspector shall verify that fill boxes and/or pressure relief/vent valve terminations are above grade outdoors in an unenclosed, free airflow area and that the fill connection is located so not to impede means of egress or the operation of sidewalk cellar entrance doors, including during the delivery process and that they are:

a) At least three (3) feet (915 mm) from any door or operable windows.*

b) At least three (3) feet (915 mm) above grade.*

c) Not located within ten (10) feet (3050 mm) from any air intakes measured from side to side at the same level or below.*

d) Not located within ten (10) feet (3050 mm) of below grade stair wells.* * Note: Many systems installed prior to 1/1/2014 do not meet the above requirements and the local Jurisdiction should be consulted for guidance.

E) GAS DETECTION SYSTEMS Rooms or areas where carbon dioxide storage vessel(s) are located indoors or in enclosed or below grade outdoor locations shall be provided with a gas detection and alarm system for general area monitoring that is capable of detecting and notifying building occupants of a CO2 gas release. Gas detection systems shall be installed and tested in accordance with manufactures installation instructions and the following requirements:

a) The Inspector shall verify that the gas detection system and audible alarm is operational and tested in accordance with manufacturer’s guidelines.

b) The Inspector shall verify that audible alarms are placed at the entrance(s) to the room or area where the carbon dioxide storage vessel and/ or fill box is located to alert anyone who might try to enter the area of a potential problem.

F) SIGNAGE

The Inspector shall verify that warning signs are posted at the entrance to the building, room, enclosure, or enclosed area where the container is located. The warning sign shall be at least 8 in (200mm) wide and 6 in. (150mm) high. The wording shall be concise and easy to read. The upper portion of the sign must be orange as shown in figure NBIC Part 2 XX. When no jurisdictional requirements exist, the minimum letter height shall be in accordance with NEMA, American National Standard for Environmental and Facility Safety Signs (ANSI Z535.2). The warning signs shall state the following:

      Attachment 5 

Figure XX

a) Additional instructional signage shall be posted outside of the area where the container

is located and such signage shall contain at minimum the following information: Carbon Dioxide Monitors for general area monitoring (not employee personal exposure monitoring) are provided in this area. These monitors are set to alarm at 5,000 ppm (1.5% concentration by volume) for the low level alarm and at 30,000 ppm (3% concentration by volume) for high level alarm.

Low Level Alarm (5,000 ppm) – Provide appropriate cross ventilation to the area. Personnel may enter area for short periods of time (not to exceed 15 minutes at a time) in order to identify and repair potential leaks.

High Level Alarm (30,000 ppm) – Personnel should evacuate the area and nobody should enter the affected area without approved self-contained breathing apparatus until the area is adequately ventilated and the concentration of CO2 is reduced below the high alarm limit.

G) VALVES, PIPING, TUBING AND FITTINGS

1) Materials – The Inspector shall verify that the materials selected for valves, piping,

tubing, hoses and fittings used in the LCDSV system meet the following requirements:

a. Components shall be rated for the operational temperatures and pressures encountered in the applicable circuit of the system

b. All valves and fittings used on the LCDSV shall be rated for the maximum allowable working pressure stamped on the tank.

c. All piping, hoses and tubing used in the LCDSV system shall be rated for the working pressure of the applicable circuit in the system and have a burst pressure rating of at least four times the maximum allowable working pressure of the piping, hose or tubing.

      Attachment 5 

2) Isolation Valves - Each LCDSV shall have an isolation valve installed on the fill line

and tank discharge, or gas supply line in accordance with the following requirements: a. Isolation valves shall be located on the tank or at an accessible point as near

to the storage tank as possible. b. All valves shall be designed or marked to indicate clearly whether it is open or

closed. c. All valves shall be capable of being locked or tagged in the closed position for

servicing. d. Gas Supply and Liquid CO2 Fill Valves shall be clearly marked for easy

identification.

3) Pressure Relief Valves- Each LCDSV shall have at least one ASME/NB stamped & certified pressure relief valve with a pressure setting at or below the MAWP of the tank. The minimum pressure relief valve capacity shall be designated by the manufacture. Additional relief valves that do not require ASME stamps may be added as per the Compressed Gas Association. Discharge lines from the pressure relief valves shall be sized in accordance tables NBIC Part 2 xx and XX.

4) Pressure Relief/Vent Line- The Inspector, where possible, shall verify the integrity

of the pressure relief/vent line from the vessel pressure relief valve to outside vent line discharge fitting. All connections shall be securely fastened to the LCDSV. The minimum size and length of the line shall be in accordance with table NBIC Part 2, XX and XX. Fittings or other connections that may result in a localized reduction in diameter have been factored into the lengths given by the tables NBIC Part 2, XX and XX.

Note: Due to the design of the LCDSV the discharge line may be smaller in diameter than the pressure relief valve outlet size but shall not be smaller than that shown in tables NBIC Part 2, XX and XX.

 

                                                            

     

 

 

 

      Attachment 5 

Table XX Minimum LCDSV System Pressure Relief/Vent Line Requirements (Plastic/Polymer)

Tank Size (Pounds)

Fire Flow Rate Requirements (Pounds per Minute)

Maximum Length of 3/8 inch ID Plastic/Polymer Materials Tube Allowed

Maximum Length of ½ inch ID Plastic/Polymer Materials Tube Allowed

Less than 500 2.60 maximum 100 feet 100 feet 500-750 3.85 maximum 100 feet 100 feet Over 750-1000 5.51 maximum N/A see ½ inch 100 feet

Table XX a) Metric Minimum LCDSV System Pressure Relief /Vent Line Requirements (Metallic)

Tank Size (Kg)

Fire Flow Rate Requirements (Kg per Minute)

Maximum Length of 10mm ID Nominal Metallic Tube Allowed

Maximum Length of 13mm ID Nominal Metallic Tube Allowed

Less than 227 1.18 maximum 24 m 30.5 m 227-340 1.75 maximum 17 m 30.5 m Over 340-454 2.50 maximum 5.5 m 30.5 m

Table XX b) Metric Minimum LCDSV System Pressure Relief/Vent Line Requirements (Plastic/Polymer)

Tank Size (kg)

Fire Flow Rate Requirements (kg per Minute)

Maximum Length of 10 mm ID Nominal Metallic Tube Allowed

Maximum Length of 13 mm ID Plastic/Polymer Materials Tube Allowed

Less than 227 1.18 maximum 30.5 m 30.5 m 227-340 1.75 maximum 30.5 m 30.5 m Over 340-454 2.5 maximum N/A see 13 mm 30.5 m Note: Due to the design of the LCDSV the discharge line may be smaller in diameter than the pressure relief valve outlet size but shall not be smaller than that shown in tables NBIC Part 2, XX and XX.

Tank Size (Pounds)

Fire Flow Rate Requirements (Pounds per Minute)

Maximum Length of 3/8 inch ID Nominal Metallic Tube Allowed

Maximum Length of ½ inch ID Nominal Metallic Tube Allowed

Less than 500 2.60 maximum 80 feet 100 feet 500-750 3.85 maximum 55 feet 100 feet Over 750-1000 5.51 maximum 18 feet 100 feet

Table XX Minimum LCDSV System Pressure Relief /Vent Line Requirements (Metallic)

      Attachment 6 

Subject: Part 2, Supplement 2, S2.8.1 SAFETY VALVES File Number: NB13-0901 Proposal: Add language to address the safety valve discharge piping. Explanation: Add new items 8-12 Add the following:

8) The safety valve(s) shall be connected so as to stand in an upright position with the spindle vertical.

9) The discharge from the safety valve(s) shall be arranged that there is no danger of scalding either the operator(s) or individuals who may be in the vicinity of the boiler. If the valve(s) is a top discharge design, no discharge piping is required. If a side discharge design valve(s) is used, an elbow should be attached to the outlet to assure a vertical discharge. The elbow must be located as close to the valve(s) as possible to minimize reaction moment stress.

10) Provision for ample gravity drain shall be made in the discharge pipe at or near each safety valve, and where water can collect.

11) If the boiler is equipped with a canopy, the elbow may be other than 90 degrees to direct the discharge out from under the canopy, while still directing the discharge to a safe location. The elbow must be located as close to the valve(s) as possible to minimize reaction moment stress.

12) If the boiler is equipped with a canopy, the discharge may be piped through the canopy. When the discharge piping is piped through a canopy, the elbow must be located as close to the valve as possible to minimize reaction moment stress. The discharge piping may be a larger pipe than the discharge size of the valve. Discharge piping shall be completely supported separate from the valve and elbow so no extra loading is transmitted to the safety valve(s).

Attachment 7

Subject: Part 3, Supplement 2, New Section under S2.13.9 File Number: NB14-0101 Proposal: Barrel replacement. Explanation:

Add a new section S2.13.9.5 after section S2.13.9.4.

New Proposed text for New Section S2.13.9.5 Barrel Replacement

An entire course of a barrel may be replaced as a repair provided that:

a.) The replacement material is code-accepted material (see NBIC Part 3, S2.7.1) that has a nominal composition and strength that is equal to or greater than the original, and is suitable for the intended service.

b.) The minimum required thickness shall be at least equal to the original material thickness. The original thickness may be determined from the original Manufacturer’s Data Report, original drawings, or by measuring the original material thickness in an area unaffected by corrosion.

c.) The longitudinal joint efficiency of the new barrel course meets or exceeds the original design / construction;

d.) All doubling / reinforcing plates, stays and openings in the original barrel are duplicated or retained on the new barrel and installed in a manner that meets or exceeds the original design / construction;

e.) All attachments and connections with other portions of the boiler are attached in the same manner as the original; and

f.) The boiler will not be re-rated at a MAWP greater than the original design MAWP.

g.) If all of the above requirements are not met, then the replacement will be considered an alteration and must follow the requirements of NBIC Part 3, 3.4