ASME Boiler and Pressure Vessel Code SECTION XI INTERPRETATIONS Volume 39 The Interpretations to the Code will be issued twice a year upto the publication of the 1998 Edition of the Code: each July (designated 7/95, 7/96, and 7/97) and with each Addenda (designated A95, A96, and A97). The Interpretations for each individual Section are published separately and are part of the update service to that Section; Interpretations of Section 111, Divisions 1 and 2, are part of the update service to Section Ill, Subsection NCA. Interpretations are not part of the Code or the Addenda. Interpretations Volumes 30 through 35 were included with the update service to the 1992 Edition of the Code; Volume 36 is the first Interpretations volume to be included with the update service to the 1995 Edition. Section Vol. 36 VOl. 37 Vol. 38 VOl. 39 Vol. 40 Vol. 41 I Il-A 11-8 Il-c 11-D Ill-NC4 IV V VI VI I VIII-1 VI 11-2 IX X XI 7/95 7/95 7/95 ... ... 7/95 7/95 ... 7/95 7/95 7/95 7/95 7/95 A95 ... ... ... ... A95 A95 A95 ... ... A95 A95 A95 A95 ... 7/96 7/96 ... ... ... 7/96 7/96 7/96 ... 7/96 7/96 7/96 7/96 7/96 *.. A96 ... ... A96 A96 ... ... A96 A96 A96 A96 A96 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services
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S T D * A S M E SEC XI I N T VOL 37-ENGL 377b 0757b70 0577773 78b
ASME Boiler and Pressure Vessel Code SECTION XI
INTERPRETATIONS Volume 39
The Interpretations to the Code will be issued twice a year up to the publication of the 1998 Edition of the Code: each July (designated 7/95, 7/96, and 7/97) and with each Addenda (designated A95, A96, and A97). The Interpretations for each individual Section are published separately and are part of the update service to that Section; Interpretations of Section 111, Divisions 1 and 2, are part of the update service to Section Ill, Subsection NCA. Interpretations are not part of the Code or the Addenda.
Interpretations Volumes 30 through 35 were included with the update service to the 1992 Edition of the Code; Volume 36 is the first Interpretations volume to be included with the update service to the 1995 Edition.
I Il-A 11-8 Il-c 11-D Ill-NC4 IV V VI VI I VIII-1 VI 11-2 IX X XI
7/95 7/95 7/95 ... ...
7/95 7/95
... 7/95 7/95 7/95 7/95 7/95
A95 . . . . . . . . . . . .
A95 A95 A95 . . . . . .
A95 A95 A95
A95 . . .
7/96 7/96 . . . . . . . . .
7/96 7/96 7/96 . . .
7/96 7/96 7/96 7/96 7/96
* . .
A96
...
... A96 A96 ... ...
A96 A96 A96 A96 A96
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
INTERPRETATIONS NO. 39 SECTION XI
Replies to Technical Inquiries January 1, 1996 through June 30, 1996
FOREWORD
General Information
This publication includes all written interpretations issued between the indicated dates by the ASME Staff on behalf of the ASME Boiler and Pressure Vessel Committee in response to inquiries concerning interpretations of the ASME Boiler and Pressure Vessel Code. A contents is also included which lists subjects specific to the interpretations covered in the individual volume. These interpretations are not a part of the Addenda or the Code.
These interpretations are taken verbatim from the original letters, except for a few typographical and editorial corrections made for the purpose of improved clarity. In some instances, a review of the interpretation revealed a need for corrections of a technical nature. In these cases, a revised interpretation is presented bearing the original Interpretation Number with the suffix R and the original file number with an asterisk. Following these revised interpretations, new interpretations and revisions to them issued during the indicated dates are assigned Interpretation Numbers in chronological order. Interpretations applying to more than one Code Section appear with the interpretations for each affected Section.
ASME procedures provide for reconsideration of these interpretations when or if additional information is available which the inquirer believes might affect the interpretation. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME committee or subcommittee. As stated in the Statement of Policy in the Code documents, ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.
Each interpretation applies to the Edition and Addenda stated in the interpretation, or if none is stated, to the Edition and Addenda in effect on the date of issuance of the interpretation. Subsequent revisions to the Code may supersede the interpretation.
For detailed instructions on preparation of technical inquiries to the ASME Boiler and Pressure Vessel Committee, refer to Appendix V in Division 1, Appendix I11 in Division 2, and Appendix VI in Division 3.
Subject and Numerical Indexes
Subject and numerical indexes have been prepared to assist the user in locating interpretations by subject matter or by location in the Code. They cover interpretations issued from Volume 12 up to and including the present volume, and will be updated with each volume.
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STD-ASME SEC X I I N T VOL 3 7 - E N G L L77b 0757b70 0577773 7 5 7
SECTION
Subject
XI
Interpretation Fie No.
Appendix W. W-4240, Supplemental Training (1989 Edition and Later Editions and Addenda Through the 1995 Addenda) ............................. XI-1-95-40 IN-
Code Case N-504-1; Alternative Rules for Repair of Class 1, 2, and 3 Austenitic Stainless Steel piping (1986 Edition) ................................ XI-1-95-39 IN96-001
IWA-2u)o; Personnel Qualification (1986 Edition) ................................ XI-1-95-38 IN95419 IWA-5OOO and Code Case N-416-1; System Leakage Test (1992 Edition). ........... XI-1-95-37 IN95415 TWD-2500-1 and IWD-3ooO; Acceptance Criteria for Visual Examination
of (VT-3) of Class 3 Components (1989 Edition) .............................. XI-1-95-36 IN94-012 IWDIIWC-3500; h p t a n c e Standads (1989 Edition and Addenda Through the 1990 Addenda) ................................................ XI-1-95-35 IN96-007
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STD.ASME SEC X I I N T VOL 3 7 - E N G L 1 7 9 6 0 7 5 9 6 7 0 0 5 7 7 7 7 6 qb8
Class 1 . reactor vessel ferritic material ................................ XI-1 -83-06 constructed to 831.7 ............................................... XI-1 -83-07 definition of flaw depth ............................ : ................ XI-1-83-32 fabrication defects - additional examinations ........................... XI-1 -83-04 flaw evaluation ..................................................... XI-1 -86-52
flaw evaluation . Section XI in lieu of construction code .................. XI-1 -92-35
indications outside examination area ................................... XI-1 -86-52
leakage .......................................................... XI-1 -92-1 9 not specified ...................................................... XI-1-69-45
XI-1-86-52R
XI-1 -92-35R
XI-1 -86-52R
Applicability alternative weld repair . removal cavity ............................... corrective measures . of new bolting ................................. fabrication of replacements .......................................... flaws detected outside of an inservice examination ....................... installation requirements ............................................. instrument tubing .................................................. leakage - not found during a system pressure test ....................... material removal process - nonwelded ................................ metal removal to prepare surface for NDE .............................. owner ...........................................................
preventive maintenance ............................................. XI-1 -89-1 9 redundant canopy seal .............................................. XI-1 -89-1 9 repair program - installing replacements ............................... XI-1-63-42 repaidreplacement activities - off site ................................. XI-1-95-09 repair subsequent to N-Stamping - prior to N.3 ......................... XI-1-63-10
shot peening ...................................................... XI-1-69-73 small items - replacement of ........................................ XI-1 -92-60 storage tank - examination .......................................... XI-1-69-51 through wall leakage ................................................ XI-1 -89-64 use of AIA for installing replacements .................................. XI-1 -83-38
Brazing .......................................................... XI-1 -86-47 procedures and personnel ........................................... XI-1 43-65
XI-1-63-46
XI-1-83-86 XI-1 -83-861
Repair/Replacement Program ........................................ XI-1 -86-23
Calibration angle beam ....................................................... XI-1 -89-1 1 confirmation - period of use ........................................ XI-1 -89-05 demonstration of equivalence ........................................ XI-1 -86-28
File No . BC83-055 lN86-022 IN89-001 B BC82-428 BC82-429 BC82-437 B(382-427 B(385-524 BC85-524* lN92-023 IN92423 BC85-524 BC85-524' lN92-005 IN90-006
Hydrostatic Test (see also System Pressure Test) after a repair ...................................................... XI-1-83-66
XI-1-86-75 XI-1 -89-1 8
after a replacement ................................................. XI-I -83-54
alternative test ..................................................... XI-1-86-25
core criticality ..................................................... XI-1-86-53 elevated temperatures .............................................. XI-1 -86-34 exempt from ...................................................... XI-1 -83-34 fabricated spool piece - Construction Code ............................ XI-1-86-58 impractical ........................................................ XI-1-86-25 induction stress improvement ......................................... XI-1 -83-71 inspection interval extension ......................................... XI-I -89-58 nonwelded modification ............................................. XI-1-86-03R NPS 1 and smaller - component connected to .......................... XI-1-86-35 open ended portions of systems ...................................... XI-1 -89-30 piping, pumps, and valves - preservice ................................ XI-1 -86-22 pressurization pressure factors ........................................ XI-1 -86-32 removal of a seal weld .............................................. XI-1-83-28 repair to a flange .................................................. XI-1-89-31 requirements ...................................................... XI-1-83-37R2
static head considerations ............................................ XI-1 -89-54
system pneumatic test in lieu of ....................................... XI-1-92-04
test pressure ...................................................... XI-1 -83-67
test pressure - gage accuracies ....................................... XI-1-89-74 test temperature ................................................... XI-1-92-23 through-wall leakage ................................................ XI-1 -89-40 when performed - order ........................................... XI-I -89-63
XI-1 -83-66
XI-1 -92-30
XI-1-83-54R
XI-1 -89-66
XI-1 -92-1 8
XI-1-92-23
Inservice Inspection Summary Report additional examinations . similar components .......................... XI-1-95-13 pressure retaining components and their supports ........................ XI-1 -8343 pumps and valves .................................................. XI-1 -83-08 when performing preservice inspection ................................. XI-1-83-1 5
Inspection Interval extension of ...................................................... XI-1 -86-54 extended or decreased .............................................. XI-1-92-57
l iquid Metal Cooled Plants inspection of inaccessible welds ....................................... XI-3-83-01 preservice system leakage test ........................................ XI-3-89-02 system leakage monitoring ........................................... XI-3-86-01
Material Manufacturer or Material Supplier qualification of .................................................... XI-1 -83-50
Quality Assurance Program - update .................................. XI-1-86-44R XI-1-86-55R
Metric Versus Customary ........................................... XI-1 -86-76
Nondestructive Examination ( s e e also Ultrasonic. Visual. and Volumetric Examinations) examination of dissimilar metal welds .................................. XI-1-89-57 induction stress improvement ........................................ XI-1-83-71 items NPS 1 and smaller ............................................ XI-1 -83-86
edition of W o n V ................................................ XI-1-89-02 exemptions - gasket replacements .................................... XI-1-69-36 integrally cast steam generator nozzle .................................. XI-1-66-71 limited to ......................................................... XI-1-66-24 Of Class 2 ves~el ................................................... XI-1-69-42
piping, pumps, and valves - hydrostatic testing ......................... XI-1-66-22 pumps and valves - VT-3 prior to service .............................. XI-1-86-20 ultrasonic examination - acceptance standards .......................... XI-1 -86-37
of manways - bolting .............................................. XI-1-83-1 1
bolts and studs . examination ....................................... XI-1-63-76 boundary . alternative test .......................................... XI-1-66-25
component . through-wall leakage ................................... XI-1 -89-64R components and their supports . summary report ....................... XI-1-63-03 components . exempt from visual .................................... XI-1-69-53 material . nonwelded work. ........................................ XI-1-66-21
material . sealants ................................................. XI-1-95-26
COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services
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STD-ASME S E C XI I N T VOL 37-ENGL L 7 7 b D 0759b70
Subject Interpretation
Pressure Retaining (Coned) parts . hydrostatic test ............................................. XI-1 -83-83 parts . brdered as spares ........................................... XI-1 -83-21 R welds . examination schedule requirements ............................ XI-1-89-14 welds in piping . NDE ............................................. XI-1-86-57
Procurement of material .......................................................... XI-1-86-55R material . MM and MS qualification .................................. XI-1-83-50R
parts as material ................................................... XI-1-83-21 R parts by non-Certificate Holder ....................................... XI-1 -89-29 pipings, valves, and fittings - NPS 1 and smaller ......................... XI-1-89-04 pressure retaining part - Code Data Report ............................ XI-1-83-21 R replacements - later edition ......................................... XI-1 -86-1 2 replacements - perform work on it ................................... XI-1 -86-59 replacement - stamping ............................................. XI-1 -83-20 spares ........................................................... XI-1-83-21R
spares - transfer of custody ......................................... XI-1 -89-07
testing of - inservice ............................................... XI-1-92-63 visual VTr3 - prior to service ........................................ XI-1-86-20 vibration measurement instrumentation ................................. XI-1-86-33
XI-1 -92-56
XI-1 -89-24
XI-1 -86-1 8
XI-1 -92-1 4
Qualification of NDE Personnel certification date ................................................... XI-1 -86-73 certification examinations ............................................ XI-1 -86-56
XI-1 -86-66 XI-1 -86-73 XI-1 -89-06
certified to a later edition of SNT.TC.1A ................................ XI-1-83-18 XI-1 -83-24 XI-1-86-40
certified to an earlier edition of SNT.TC.1A ............................. XI-1-83-24 certified to SNT-TC-1 A .............................................. XI-1 -83-1 8
XI-1 -83-23 XI-1-83-29 XI-1 -83-82 XI-1 -89-26
color vision examination - frequency ................................. XI-1 -83-36 duties of Authorized Inspector ........................................ XI-1-83-48 examinations w r i n g ................................................ XI-1 -92-54
examinations - random seledon ..................................... XI-1 -95-22
examinations - use of grading unit ................................... XI-1-95-23 experience requiremenk ............................................ XI-1-92-28 eyeexamination ................................................... XI-1-83-01 for pumps and valves ............................................... XI-82-06R other than to SNT-TC-lA., .......................................... XI-1-83-45 outside agency .................................................... XI-1 -92-53 perform examinations to earlier editions ................................ XI-1-86-40
performance demonstration .......................................... XI-1-92-39 practical examination requirementr - alternatives to ..................... XI-1 -92-69 pressure loss, flow change and test .................................... XI-1 -92-52 pumps and valves .................................................. XI-1-92-37
Quality Assurance Program qualification of plant and contractor personnel ........................... XI-82-06R review of ......................................................... XI-1 -86-64 updating to a later Construction Code .................................. XI-1-66-44
XI-1 -86-44R
Records and Reports
Code Data Repoh ................................................. design documents .................................................. documentation . construction code ..................................
certificate of compliance and CMTR ...................................
documentation . inservice degradation ................................ documentation . installation of replacement ........................... documentation - test temperature .................................... inservice inspection plan - requirements ............................... manufacturer's data report - NIS-2 ................................... NIS forms - signature .............................................. nonwelded replacement ............................................. Ownen data form .................................................. retention of radiographs ............................................. use of NIS-1 Form .................................................
for pressure retaining bolting .........................................
Repair/Replacement Program activities . off site ................................................. XI-1-95-09 applies to ......................................................... XI-1 -86-36
XI-1 -86-41 XI-1 -86-62
component supports ................................................ XI-1 -86-23 failure ........................................................... XI-1 -92-1 5 impractical NDE - alternative examination ............................. XI-1 -86-51 initiation of ........................................................ XI-1 -95-14 items NPS 1 and smaller ............................................ XI-1 -83-86
nonpressure boundary material ....................................... XI-1-66-23 Owner's responsibility .............................................. XI-1-95-09 Quality Assurance Program - review of ................................ XI-1 86-64 use of later rules ................................................... XI-1 -86-25
XI-1 -83-86R
XI-1 -86-31
sealantp Use Of ........................................................... XI-I -89-40
Stamping installation of replacement parts ...................................... XI-1-83-02 of replacement parts - ordered as spares .............................. XI-1-83-21 R of replacement parts - valves. ....................................... XI-1 -83-20 Section 111 ........................................................ XI-1-83-72
System Pressure Test (also see Hydrostatic Testing) after a repair or replacement. ........................................ XI-1-63-05 applies to.. ....................................................... XI-1-63-34
exempted from - N K 1 and smaller.. ................................ XI-1-83-351 leak test - core criticality ........................................... XI-1 -86-53 open ended portions of systems ...................................... XI-1 -89-30 pressurizing medium. ............................................... XI-1 -83-25
reduction of pressure - visual examination ............................. XI-1 -86-46 replacement of bolts, studs, and nuts .................................. XI-1-89-06
systems not required to operate. ...................................... XI-1 -92-62 through-wall leakage. ............................................... XI-1 -89-64
Use of Code Cases N-98 ............................................................ XI-1-89-09 N-308 ........................................................... XI-1-83-02
VT-2 of borated water systems ........................................ XI-1-89-39 VT-2 during a functional test ......................................... XI-1-89-75
VT-2 of buried components, ......................................... XI-1 -83-1 9
VT-3 - pumps and valves prior to service., ...... .,. .................... XI-1-66-20 VT-3 - reactor v e s s e l .............................................. XI-1-95-28
XI-1 -92-34
XI-1-95-36
XI-1-95-27 VT.3-s~pporh ................................................... XI-1-89-26 W - 4 - pumps and valves ........................................... XI-1-83-69 VTM-2 - Accessibility .............................................. XI-3-69-01 welds on multiple components ....................................... XI-1-86-26
Volumetric Examinations and surface - exemptions to ........................................ XI-1-86-43R
XI-1-92-40 XI-1-92-45 XI-1-95-03
as an alternative to surface ........................................... XI-1-89-21
Code Case N.460 .................................................. XI-1-89-32 fabrication defeck - additional examinations ........................... XI-1 -83-04 or surface ........................................................ XI-1 -89-1 1
piping - outer surface ....... , .... , ................................. XI-1-92-58 prior to hydrostatic test ............. , ................................. XI-1-89-63 required volume to be examined ..................................... XI-1-89-32 successiw inspection intervals ........................................ XI-1-69-50
Weld accessible - preservice examination .......... , ... , .................... XI-1 -86-24 additional examinations - similar components ....................... , .. XI-1 -92-61 between different P.numben ................ , ........................ XI-1 -83-39 connecting NPS 1 and less - hydrostatic test ........................... XI-1 -86-35 examination - dissimilar metal welds ...................... , ........... XI-1-92-13 examination - full penetration ................... , ................... XI-1-89-43 examination of integrally welded attachments ........... , ... , ........... XI-1-92-05 examination of pipe ... , .. , ......................................... XI-1-83-60
nonpressure retaining ............................................... NDE examination requirements .......................................
overlay cladding to replacement parts .................................. piping - additional examinations ..................................... piping - examination of (calibration method) ........................... piping - NDE requirements .........................................
piping supports - examination . . . . . . . . . . . . . . . I ....................... pressure retaining boundary - alternative test ........................... procedure qualification record - sharing of ............................. procedures - qualification . . . . . . . . . . . . . . . . . . I .......................
reference system . recording of ...................................... reference system . identification of ................................... Repair/Replacement Program ........................................
