pipeline fires and damages

8/12/2019 pipeline fires and damages

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ASME 83 3IINTERPRETATIONS NO

Replies to Technical InquiriesMay 1 1989 Through May 31 1990

General InformationIt has been agreed to publish interpretations issued by the 831


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83 3SubjectFig. 328.4.4; 8ranch Pipe Projection Into Run Pipe Fig. 328.5.28; Double-Welded Slip-On Flange - Dimension ' .' Paras. 300 and 300 1 and Fig. 300 1 1 Applicability - Offshore PIatfonn Paras. 300(b) and 300 2 and Appendix M; Oassiflcadon of fluid 5erYlce, t argeTemperature Changes Paras. 3OO(c)(2) and 323.3.4; Impact Testing Methods and cceptanceCriteriaBelow - 32O F Paras. 3 1 1 and 300.2; Rules for InUne Sensing DevicesParas. 302.2.4 and 345.4; Maximum Allowable Valve Body cavity Pressure Para 302.3.2 and Table A-1; Stress Value for A387, Grade 9, Classes 1 and 2Para 302.3.5; Stresses due to Cold Spring Para 304.3.3 and Appendix H; Branch Reinforcement Para. 304.3.3 and figs. 304.3.3 and 1028.5.4; Area Replacement - DefInitions Para 304.5.1 and Table A-1; MaterialslFittings - Use o Two Crades Paras. 318 and 328.5.4; fillet Welds .Paras. 323.1.1 and 323.1.2; Material Reidentiflcatlon Para 323.1.2 and Table 326.1; Material for Valve Body and Internals .Para 330; Preheat Requirements - Welding Procedure SpecificationPara 330.1; Preheat Temperature - Procedure Qualification .Para 331.1.1; Postweld Heat Treatment .Paras. 331.1.2, 331.3. , and 331.3.7; Temperature Monitoring o StressRelieving of Pipe Welds in Series Para. 331.1.7: Hardness Tests - Procedure QualIftcat10n RecordsPara. 332.1; Use of Eibowiess Steel Pipe in 831.3 .Para. 332.2.1: Bends - Requirements for .Para 341.3.2 and Table 341.3.2A; cceptanceCriteria - Uquid Penetrant andMagnetic Particle .Paras. 341.4.1 and 344.2: Visual examination - Small Bare Piping. Paras. 341.4.1, 341.4.3, and 344.2.1: Visual examination - Intemallnspection .Para. 341.4.l(c): CertifIcations and Records Paras. 341.4.2 and 341.5 and Table 341.3.2A; Category 0 Fluid SeMc:e Paras. 345 and 345.2.2: Leak Test as Nondestructive amlnatlonParas 345.1 and 345.9: Leak Testingaras A 3 ? 4 ~ ~ 2 8 2 1 A328.2.5 and A328.5: BondingQualJflcat10n Test,JOint Umitations .Para. A314 and Table 314.2.1: PIastlc Uned Pipe - Use o 5aeINed FIanps Paras. M307.2 and MA323.4.2: Category M Fluid SeMc:e - Double ContainedPiping; Use ofValves Postweld Heat Treatment - Seal Welding .Table 323.3.1 and Para. 328.2.1: Impact Requirements in Qualifyinga Welding Procedure .Tables 326.1 and A1: Dual Certified Materials and ComponentsTable 331.1.1; Heat Treatment RequirementsTable A-1: Minimum Ultimate Tensile Strength and Allowable Stresses for ASTMB464, Grade 20 Cb Table A-1: Use of Plate Material for Pipe .

lr.lteJflldatlon FileNo., 8-28 83190-0088-27 83190-0078-17 B31-89-0178 09 B31-89-018

8-30 B319O.()10; 8-01 B31-88-02888-04 831-89-007, 8-25 831-89-0518-16 831-89-036 8-06 831-89-009 8-37 83190.()178-18 831-89-0338-13 831-89-0288-19 831-89-0438-07 831-89-0108-21 831-89-0458-23 831-89-047

8 08 831-89-0138-05 831-89-0088-22 831-89-0468-03 831-89-0068-20 831-89-0448-32 83190.()128-26 83190-0018-10 831-89-0198 02 831-88-0308-38 831-89-0498-31 83190-0118-15 831-89-0358-14 831-89-0348-33 83190-0138-35 83190-0158-12 831-89-0238-29 83190-0098-34 83190-0148-24 831-89-050

: 8-11 831-89-020 8-36 83190-016

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B31 3 Interpretations No 8 8-01, 8-02, 8-03

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Interpretation: 8-01Subject: ASMf/ANSI 831.3-1987 Edition, Paras. 300.1.1 and 300.2; Rules for In-UneSensingDevicesDate Issued: May 22 1989File: 831-88-0288

Question: Shall the pressure containing piping components of an in-line sensing device bedesigned, fabricated, examined, and tested In accordance with the rules ASMf/ANSI 83 3Reply: Yes; see the definitions for plping and piping components in ASMf/ANSI 831.3,para. 300.2. See also para. 300.1.1.

Interpretation: 8 02Subject: ASMf/ANSI 831.3-1987 Edition, Para. 341.4.1 c); CertifiCations and RecordsDate Issued: May 22, 1989File: 831-88-030

Question: In accordance with ASMf/ANSI 831.3, para. 341.4.1 c), can manufacturers markingson pipe, fittinp, and components be reprded as confirmation material compliance with thespecifications1Reply: Yes.

Interpretation: 8 03Subject: ASMf/ANSI 831.3-1987 Edition With Addenda Through 831.3b-1988, Para. 332.1;Use EJbowIess Steel Pipe in 831 3Date Issued: May 22, 1989File: B31-89-006

Question: In accordance with ASMf/ANSI B31.3 is the use of pipe bending permltted1Reply: Yes see ASMf/ANSI 831.3, para. 332.1.

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8-04 8-05 8-06Interpretation: 8-04

831.3 Interpretations No.8

Subject: ASMf/ANSI 831.3-1987 Edition With Addenda Through 831.3b-1988 Paras.302.2.4 and 345.4; Maximum Allowable Valve odycavity PressureDate Issued: May 22 1989File: 831-89-007Question: In accordance with ASMf/ANSI 831.3 what is the maximum pressure buildup relativeto the pressure rating of the valve permitted in the body cavity?Reply: 133 of the pressure rating of the valve provided that all the requirements ASMEJANSI 831.3 para. 302.2.4 are met. Also see para. 345.4 for pressure test requirements.

Interpretation: 8 0S

Interpretation: 8 6Subject: ASMfJANSI 831.3-1987 Edition With Addenda Through 831.3b-1988 Para. 304.3.3and Appendix Hi 8ranch ReinforcementDate Issued: May 22 1989File: 831-89-009

Question: In accordance with ASMEJANSI 831.3 para. 304.3.3 is the weld joint factor forcalculating the required thickness of the branch t always equal to 1 whether the branch is lon-gitudinally welded or otReply: No. The weld joint quality factor for the branch in accordanci;e with para 302.3.4 shallbe used.Note: Example H 2 ofAppendix Hwill be reviewed by the.Committee for possible revision.

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B31.3 Interpretations No. 8 8 07 8 08: Interpretation: 8 07

Subject: ASMEIANSI B31.3 1987 Edition With Addenda Through B31.3b 1988 Para. 323.1.2and Table 326.1; Material for Valve Body and InternalsDate Issued: May 22 1989File: B31-8901

Question 1): Is ASTM A487-1C formerly A487-1Q) an acceptable n aterial for valve bodieswithin the scope of ASMEIANSI B31.31Reply 1): Yes, if qualified as an unlisted material in accordance withASMElANSI B31.3, para.323.1.2.Question 2): Are valve internal materials covered by ASMEIANSI B31.31Reply 2): ASMEIANSI B31.3 does not cover valve internal components except by reference tovalve standards listed In Table 326.1.

Interpretation: 8 08Subject: ASMEIANSI B31.3 1987 Edition, Para 331.1.1; Postweld Heat TreatmentDate Issued: May 22 1989File: B31-89-013

Question: In accordanc,: with ASMEIANSI B31.3, para 331.1.1 is postweld heat treatmentrequired in the welding procedure specification for P-No. 1 materials when postweld heat treatmentis needed solely for the typ of service1 .Reply: Yes, and the requirements for postweld heat treatment should be specified in the engineering design.

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8-10Interpretation: 8-09

83 3 Interpretations No 8

Subject:

Subject: ASME/ANSI B31.3-1987 Edition With AddendaThrough B31.3b-1988, Paras. 3OO band 300.2, and Appendix M; Classification of Fluid Service, Large TemperatureChangesDate Issued: November 16, 1989File: B31-89-018

Question (1): Is it a requirement of S M ~ N S B31.3 that piping for liquid oxygen LOX t- 2970F and 6000 psig be classified as Category M fluid service as defined in para. 300.21Reply (1): No; it is the owners responsibility to determine which fluid services are to beidentified as Category M. See para. 3OO b 1 . Appendix M may e used a guide in making suchdeterminations.Question (2): Does ASME/ANSI B31.3 require that piping which undergoes a large, rapid temperature change e considered to experience severe cycle conditions as ~ n in para. 3 21Reply (2): No.

Interpretation: 8-10ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3b-1988, Paras.341.4.1,341.4.3, and 344.2.1; Visual Examination - Intemallnspection

Date Issued: November 16, 1989File: B31-89-o19 '

Question: Is it the intent ASME/ANSI B31.3, paras. 344.2.1, 341.4.1, and 341.4.3 that randomor 100 visual examination of weld internal surfaces requires indirect observation by aids such asborescopes1Reply: No. he intent ASME/ANSI B31.3, para. 344.2.1 is thatthe phr se or can e exposedto view... refers to direct visual examination. .

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814

88

831 3 Interpretations No 8Interpretation: 8-14Subject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3b-1988, Paras. A304,A328.2.1, A328.2.5, and A328.5; Bonding Qualification Test, Joint UmitationsDate Issued: November 16, 1989File: 831-89-034

Question 1): ApplYing the rules ofASME/ANSI B31.3, para A328.2.5 a , the required bondingqualification test assembly should consist of at. least one pipe-to-pipe joint and one pipe-to-fittingjoint. Is a pipe-ta-pipe joint required for solvent cemented joints in thennoplastic piping1Reply 1): Yes.Question 2): In ASME/ANSI B31.3, para A328.2.5 a , is a pipe-ta-fitting joint required for hotgas welded joints in thennoplastic piping1Reply 2); Yes.Question 3): Applying the rules of ASME/ANSI B31.3, para A304, the required test pressurefor the bonding qualification test assembly specified in para 328.2.5 b may exceed the minimumburst pressure of the plastic components. Is this the intent ofASME/ANSI. B31.31Reply 3): ASME/ANSI B31.3 does not address the issue of minimum burst strength.Que,stion 4): Is it in violation ofASME/ANSI B31.3 to conduct hot gas bonded welds with jointsthat have a root face and root gap other than Va in.1Reply 4): No, ASME/ANSI B31.3, para. A328.5.2 a states recommendations for joint dimensions. See the requirements para A328.2.1 b).Question 5): In ASME/ANSI B31.3, p r s A328.S.3 and A328.S.4, does the word fillet applyto heat fusion joints1Reply 5): Yes.Question 6): ASME/ANSI B31.3, para A328.S.3 b states that asserriblyof the surfaces to bejoined shall produce a small fillet of cement at the outer limits of the joint. If after the joint curesand the cement dries, there are areas at the outer limits that do not exhibit a small fillet, is the jointrejectable?Reply 6): Yes.

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9/18

.83 3 Interpretations No 8

Interpretation: 8-158 15 8 16

Subject: ASMEIANSI 831.3-1987 Edition W it h Addenda 831.3b- 1988, Paras. 345.1 and345.9; eakTestingDate Issued: November 16, 1 989File: 83189-035

Quest ion 1): W here leak t esti ng a system follows gui deli nes under, ASMEIANSI 831.3, para345.1 c), does ASMEIANSI 831.3 r equi re t hat all i tems under par a. 345. 9 be per formed 345.9.1,345.9.2, and 345.9.3HReply 1): YesQuest ion 2): W here tying a newl y const ruct ed ASMEIANSI 831.3 normal fluid service pipingsystem i nt o an existing piping system, and the tie-in weld cannot be i Olated for hydrostatic orpneumatic testing, and the conditions para 345.1 c) do not apply, what does ASMEIANSI 831.3

require for leak testinglReply 2): ASMEIANSI B31.3 does not address leak testing under these circumstances.

Interpretation: 8-16 Subject:, ASMEIANSI 8 31 .3 -1 98 7 Edition With A dd en da Thro ugh 8 31 .3 b- 19 88 , Para.302.3.5; Stresses due to Cold Spring

Date Issued: November 16 1989File: 831-89-036

Question: In accordance with ASME/ANSI B31.3, para 302.3.5 c), is it required to indude th estresses due to cold spring in the sustained longitudinal stress 5,Reply: No

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8 17 8 18Interpretation: 8-17

B31.3 Interpretations No.8 cSubject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3b-1988, Paras. 300and 300.1 and Fig. 300.1.1, Applicability - Offshore PlatformDate Issued: December 4, 1989File: B31-89-o1 7

Question: At what 'point does the coverage of ASME/ANSI B31.3 end In piping connected to alauncher/receiver for .a pipeline pig and a pipeli elriser on In offshore platform?Reply: Except as stated in para. 300.1.1 (c) and shown in Fig. 300.1.1, ASME/ANSI B31.3 doesnot specify limits of coverage; it Is the owner s responsibility specify the appropriate B31 Codebreak points. See para. 3OO(b)(1). .

Interpretation: 8-18Subject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3b-1988, Para 304.5.1and Table A-1; Materials/Fittings - Use of Two GradesDate Issued: April 20, 1990File: B31-89-033

Question (1): When using stainless steel materials that meet ASTM requirements for two grades(e.g. 304/304L or 316/316l In B31.3 piping, may the desilP be based on the allowable stressestabulated in ASME/ANSI B31.3, Table A-1 for the straight grade through 100crF and for the Lgradeabove 10000F?Reply (1): YesQuestion 2 : May stainless steel tlan and flanged fittings, that meet ASTM requirements fortwo grades (e.g. 304/304L or 316/316l be qualified by ASME/ANSI B31.3, para. 304.5.1 for desilP'temperatures above ao


11/18

831.3 Interpretations No 8Interpretation: 8-19

8-19,8-20,8-21

Subject: ASME/ANSI B31.3-1987 Edition, Paras. 323.1.1 and 323.1.2; Material ReidentificationDate Issued: May 7 1990File: B31-89: 043

Quest ion 1): Does ASME/ANSI B31.3 require that materials conforming to p r 323.1.1 or323.1.2 be reidentified after cutting for fabrication?Reply 1): No.Quest ion 2): Does ASME/ANSI B31.3 have qualification requirements for an individual whoreidentifies material?Reply 2): No.

Interpretation: 8 20Subject: ASME/ANSI B31.3-1987 Edition, Para. 332.2.1; Bends - Requirements forDate Issued: May 7 1990 ile B31-89-o44

Question: In accordance with ASMEJANSI B31.3, para 332.2.1, is pennissible to reduce theoutside diameter of the bend by grinding if the wall thickness required by the design is maintainedlReply: ASME/ANSI B31.3 does not address this subject.

Interpretation: 8-21Subject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3b-1988, Para. 330;Preheat Requirements - Welding Procedure speeifie:atlonDate Issued: May 7, 1990 ile B31-89-Q45

Question: In accordance with ASMEJANSI B31.3, para. 330, for temperature verifk:atIonof preheat zone, and limitations on interruption of welding, is it required that the welding procedurespecification detail these requirements?

Reply: No.

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8 22 8 23 8 24Interpretation: 8 22

831.3 Interpretations No 8

Subject: ASME/ANSI 831.3 1987 Edition With Addenda Through 831.3b 1988 p. ara.331.1.7; Hardness Tests Procedure Qualification RecordsDate Issued: May 7 1990File: 831 89 046

Question: In accoroance with ASME/ANSI 831.3 para 331.1.7 is it ~ u i r e that hardness testsbe verified on p r o e u r ~ qualification records?Reply: No.

Interpretation: 8 23Subject: ASMFJANSI 831.3 1987 Edition With Addenda Through 831.3b 1988 Para 330.1;

Preheat Temperature Procedure QualificationDate Issued: May 7 1990File: 831 89 Q47

Question: In meeting the requirements of ASMFJANSI 831.3 para 330.1.1 for preheat tem-peratures is t necessary to comply with the values in Table 330.1.1 or can the requirements o the8PV Coc:Ie Section IX be used?Reply: ASMFJANSI 831.3 Table 330.1.1 applies except for those values which are listed asrecommendations.

Interpretation: 8 24Subject: ASMFJANSI 831.3 1987 Edition With Addenda Through 831.3c 1989 Table331.1.1; Heat Treatment RequirementsDate Issued: May 7 199File: 831 89 050

Question: In meeting the requirements o ASMFJANSI 831.3 Table 331.1.1 for heat treatmentof materials in P Nos. SP-1 through SP 5 what heat treatment is necessary the engineering designdoes not specify the requirements?

Reply: ASME/ANSI 831.3 does not designate a specific heat treatrrient procedure for thesematerials. For conformance with ASME ANSI 831.3 the engineering design must establish proce-dures in accordance with Note 1 of Table 331.1.1.

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8 28 8 29

Interpretation: 8-28831 3 Interpretations No

Subject: ASME ANSI B31.3-1987 Edition With Addenda Through B31.3c-1989, Fig 328.4.4;Branch Pipe Projection Into Run PipeDate Issued: May 7 1990File: B31-90-008

Question: In accordance with ASME ANSI B31.3, Fig 328.4.4 sketch: c , is there a maximumdistance that the branch pipe can project into the run pipelReply: No

Interpretation: 8-29Subject: ASME ANSI B31.3-1987 Edition With AddendaThrough B31.3e-1989, Table 323.3.1

and Para. 328.2.1; Impact Requirements in Qualifying a Welding ProcedureDate Issued: May 7 1990File: B31-90-009

Question: In accordance with ASME ANSI B31.3, p r 328.2.1 d , when impact testing is required by ASME ANSI B31.3 or the enBineering desisn In qualifying a welding procedure, does this requirement apply to both fabricators and manufacturerslReply: Yes

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B31.3 Interpretations No 830,831

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t ~ ~ ~ :

Interpretation: 8-30Subject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3c-1989, Paras.300 c 2 and 323.3.4; Impact Testing Methods and Acceptance Criteria Below-320FDate Issued: May 7, 1990File: B31-90-010

Question 1 : Does ASME/ANSI B31.3 the use f other toughness testing methods inplace of Charpy impact testing for systems with a minimum design temperature below - 320F?Reply 1 : No.Question 2 : Does ASME/ANSI B31.3 prohibit the use of other testing methods and/or analysisto supplement Charpy testing to evaluate materials for use below - 320FReply 2 : No. s para. 300 c 2.Question 3 : Can the Charpy testing requirements of ASME/ANSI B31.3 be satisfied by testingat -320F, even though the minimum design temperature is -423F?Reply 3 : No; see para. 323.3.4.

Interpretation: 8-31Subject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3c-1989, Paras. 345and 3 4 5 ~ ; Leak Test as Nondestructive ExaminationDate Issued: May 7, 1990File: B31-90-011

Question 1 : In accordance with ASME/ANSI B31.3, para. 345, are all forms leak testingdescribed considered to be nondestructive examination?Reply 1 : No. ASME/ANSI B31.3.does not dassify leak testing as examination.Question 2 : Does ASME/ANSI B31.3 have requirements for the personnel that perform leaktesting?Reply 2 : No; however, the examination for leaks required in ASME/ANSI B31.3, para. 345.2.2should be by personnel qualified for visual examination.

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8-32 8-33 8-34Interpretation: 832

831.3 Interpretations Nor .:\ >

Subject: ASME/ANSI B31.31987 Edition With Addenda Through B31.3c-1989, Para. 341.3.2and Table 341.3.2A; Acceptance Criteria - Uquid Penetrant and Magnetic ParticleDate Issued: May 7, 1990File: B3190-012

Question: In accordance with ASME/ANSI B31.3, para 341.3.2 for the detennination of animperfection using liquid penetrant or magnetic particle examination techniques is it the size of theindication or the size the discontinuity that is used in the detennination of acceptance or rejection?Reply: ASME/ANSI B31.3 specifies liquid penetrant and magnetic particle examination for thedetection of cracks only, and all cracks are rejectable.

Interpretation: 8-33Subject: ASME/ANSI B31.31987 Edition With Addenda Through B31.3c1989 Para. A314and Table 314.2.1; Plastic tined ipe Use of Saewed FlangesDate Issued: May 7, 1990File: B3190-013

u e ~ o n Does ASME/ANSI B31.3 prohibit the use of threaded flanges on plastic lined metallicpipe?Reply: No; threaded joints within the size ranges and limitations in accordance with ASME/ANSIB31.3, Table 314.2.1 may be used. Safeguarding may be required; see Note 4) Table 314.2.1.

Interpretation: 8-34Subject: ASME/ANSI 831.3-1987 EditionWith Addenda Through 831.3c1989 Tables 326.1and A1; Dual Certified Materials and ComponentsDate Issued: May 7, 1990File: B3190-014

Question 1): For temperatures not exceeding 10000F, may ASME/ANSI B31.3 piping systemsbe constructed dual certified stainless steels e.g. 304/304U using Table A1 stresses for thestraight grades?Reply 1): Yes.Question 2): May the pressure-temperature rating for the straight grade of the correspondingmaterials for components listed in ASME/ANSI B31.3, Table 326.1 be used?Reply 2): The requirements the referenced standards apply.

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831 3 Interpretations No 8 8 35 8 36

. 1 .

Interpretation: 8-35Subject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3c-1989, Paras.M307.2 and MA323.4.2; Category M Fluid Service - Double Contained Piping;Use of ValvesDate Issued: May 7, .1990File: B31-90-015

Question 1 : Does ASME/ANSI B31.3 reqIJlre the use double contained piping systems forCategory M Fluid Service1Reply 1 : No.Question 2): Does ASMf/ANSI B31.3, para. MA323.4.2 permit the use of a double containedthermoplastic piping system for category M Fluid 5ervIce1 Reply 2 : No.Question 3 : Does ASME/ANSI B31.3, para. M307.2 require the use of fire s fe fire tested)valves for Category M Fluid Service1Reply 3 : No. .

Interpretation: 8-36Subject: ASME/ANSI B31.3-1987 Edition With Addenda Through B31.3c-1989, Table A-1;Use of teri l for PipeDate Issued: May 7, 1990File: B31-90-016

Question: Is pipe f bric ted In ccord nce with ASMf/ANSI B31.3, from a listed plate materiale.g., A 516Gr. 60) without refelence to a pipe specification such as ASTM A 671), acceptable perASME/ANSI B31.31Reply: Yes.

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8 37 8 38Interpretation: 8-37

831.3 Interpretations No

Subject: ASME/ANSI B31.3-1987 Edition With Addenda Throush B31.3c-1989 Para. 304.3.3and Figs. 304.3.3 and K328.5.4; Area Replacement - DefInitionsDate Issued: May 7 1990File: B31-90-017

Question: In accordance with ASME/ANSI B31.3, para. 304 3 3 what is the correct value of Titto be used in calculation for the branch connection shape shown in the lower half of Fig. K328.5.4?Is Tit based upon the reinforcing barrel of the fitting or the wall thickness of the matching branchpipe?Reply: The value of Tit to be used in calculation for the referenced fitting is the nominalthickness of the reinforcing barrel less manufacturing mill tolerances provided that the inaeasedbarrel thickness is uniform and extends at least to the limit shown in, Fig 304 3 3 Otherwise

Tit is the nominal thickness of the matching branch pipe less manufacturing mill tolerance.

Interpretation: 8-38Subject: ASME/ANSI B31.3-1987 Edition, Paras. 341.4.2 and 341.5 and Table 341.3.2A; eat-egory 0 Fluid serviceDate Issued: May 25 1990File: B31-89-049

Question 1 : In accordance with ASME/ANSI B31.3, Table 341.3.2A what acceptance criteriashould be used for Category 0 Fluid service pipe welds which have been radiographed?Reply 1 : ASME/ANSI B31.3 does not address radiography for Category 0 Fluid service welds.Question 2 : In accordance with ASME/ANSI B31.3 may the owner specify radiography as asupplementary examination to be performed on Category 0 Fluid ervicepiping?Reply 2 : Yes; in accordance with ASME/ANSI B31.3 para 341.5.Question 3 : In accordance with ASME/ANSI B31.3 para 341.4.2 and Table 341.3.2A if ra-diography is performed on Category 0 Fluid 5ervk:e pipe welds and wu not specified by theengineering design should the radiography be disregarded?Reply 3 : ASME/ANSI B31.3 does not address this subject.

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