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Agenda Item: 653-2003
Revision: 0
Title: NDE Requirement Summary Appendix Updates and Format Change.
Submittal Date: November 12, 2013
Handled By: Al Holman
Marathon Petroleum
419-421-2663
Purpose: Update NDE Requirement Summary in Appendix F with recent changes and revisions in standard and change format to tables.
Impact & Rationale: This is review and update to Appendix F to reflect past standard revisions and a format change to tables similar to Appendix T of API-650.
Note: The information highlighted in yellow and in red text in Comment Column is strictly for reference and commentary purposes. This column and its contents will removed at publication. The red text that has been added and item/s with a strike through mark in the Reference Section Column represent editorial changes that are needed to align with current standard requirements.
Process Welds Requiring Inspection Reference Section Comment
VE Cavities from removal of repads. API 653, 12.1.2.2
VE
Completed welds of stress-relieved assemblies after stress relief but before hydrostatic testing. API 653, 12.1.2.4
VEAll fillet welds and completed repairs of fillet welds
API 650, 7.3.2.2 and API 653, 12.1.3.3
VE
Completed welds of new permanent attachments and areas of removed temporary attachments API 653, 12.1.4.2
VE New shell plate-to-shell plate welds API 653, 12.1.5
VE Tack welds left in place API 650, 7.2.1.8
VE
Bottom plate and all welds, including the weld attaching a patch plate to the bottom, for new bottom plates API 653, 12.1.7.1
VERoot and final weld pass of patch plate to bottom in the critical zone API 653, 12.1.7.2
VEAreas of a bottom plate repaired by welding API 12.1.7.3
VE Areas of a shell plate to be repaired by welding
API 653, 12.1.8.1 12.1.8.1 Shell Plate Repairs by Weld Metal DepositAreas of shell plate to be repaired by
welding shall be examined visually. In addition, shell plate areas repaired by welding shall be examined by the magnetic particle method (or the liquid penetrant method).Change to 12.1.8.1
VE Cavities from removal of weld defects API 653, 12.1.3.1
VEAnnular plate butt-welds root pass and final pass API 653, 12.3.2.4.1 b
VERepaired areas of the shell to bottom weld API 653, 12.3.2.5.2
MTPTCavities from removing existing reinforcing pad welds API 12.1.2.2
MTPTNew welds of nozzle neck-to-shell, nozzle neck-to-repad, and repad-to-shell API 653, 12.1.2.3
MTPT
Completed welds of stress-relieved assemblies after stress relief, before hydrostatic testing API 653, 12.1.2.4
MTPT Cavities from removal of weld defects API 653, 12.1.3.1
MTPT
Completed welds of new permanent attachments and areas of removed temporary attachments on API 650 material Groups IV, IVA, V, or VI API 653, 12.1.4.2
MTPT
The back-gouged surface of the root pass and the final surface of new shell plate welds where the shell is thicker than 1 in. API 653, 12.1.5
MTPT
Existing shell-to-bottom welds that will be under a patch plate, plus 6 in. On each side API 653, 12.1.6.3
MTPTRoot and final weld pass of patch plate to bottom in the critical zone API 653, 12.1.7.2
MTPT Bottom plate restored by welding API 653, 12.1.7.3
MTPT Areas of a shell plate repaired by welding API 653, 12.1.8.1
12.1.8.1 Shell Plate Repairs by Weld Metal DepositAreas of shell plate to be repaired by welding shall be examined visually. In addition, shell plate areas repaired by welding shall be examined by the magnetic particle method (or the liquid penetrant method).Change to 12.1.8.1
MTPT
MT or PT repairs to the annular plate or bottom plates within the critical zone after root and final pass API 653, 12.3.2.4.1
MTPT
MT or PT repairs to the shell-to-bottom welds before and after the root pass, and after the final pass API 653, 12.3.2.5.2
MTPT
The back-gouged surface of the root pass of full penetration nozzle neck-to-shell and repad welds as required by API 653, 12.3.2.3.5, specific hydrostatic test exemption requirement API 653, 12.3.2.3.5
MTPT
Magnetic particle examination alone is required for weld removal areas of the bottom-to-shell welds when removing a bottom API 653, 9.10.2.3
9.10.2.3 When removing an existing tank bottom, the tank shell shall be separated from tank bottom either by:b) removing the entire shell-to-bottom attachment weld, including any penetration and heat affected zone by suitable methods such as arc gouging and/or grinding.All arc-gouged areas of the tank shell-to-bottom weld shall be magnetic particle examined, and defective areas repaired and re-examined.Change to 9.10.2.3
MTPT
The magnetic particle examination acceptance standard is ASME Section V, Article 7
ASME Section V, Article 7 API 653, 8.2.1
8.2.1 When magnetic particle examination is specified, the method of examination shall be in accordance with Section V, Article 7, of the ASME Code.Add API 653, 8.2.1
MTPT
The liquid penetrant examination acceptance standards are ASME Section V, Article 6
ASME Section V, Article 6 API 653, 8.4.1
8.4.1 When liquid penetrant examination is specified, the method of examination shall be in accordance with Section V,Appendix 8, Paragraphs 8-3, 8-4, and 8-5, of the ASME Code.Add API 653, 8.4.1
UEShell areas over which lap patch plates are to be welded API 653, 9.3.1.9
UE Shell areas over which new reinforcing or API 653, 12.1.2.1
hot tap nozzles are to be welded
UECompleted repairs of butt-welds unless radiographed API 653, 12.1.3.2
UE
The full penetration nozzle neck-to-shell and repad welds are required by API 653, 12.3.2.3.6, specific hydrostatic test exemption requirement API 653, 12.3.2.3.6
UERepairs to annular plate butt-welds after final pass API 653, 12.3.2.4.1 b
VBNew shell-to-bottom welds, unless diesel tested API 653, 12.1.6
VBNew bottom welds, unless tracer gas tested API 653, 12.1.7.3
12.1.7.3 In addition to the requirements in 12.1.7.1, areas of bottom plate repaired by welding shall be examined by the magnetic particle method or the liquid penetrant method. In addition, the repaired area shall also be tested using a vacuum box and solution or a tracer gas and detector.Change to 12.1.7.3
VBNew roof plate welds for tanks designed to be gas tight API 650, 7.3.7
VB Potential bottom plate leak paths API 653, 12.1.7.1
VB Patch plates welded on the bottomAPI 653, 12.1.7.1 and 12.1.7.2
VB Bottom plate restored by welding API 653, 12.1.7.3Tracer-Gas
Required for new bottom welds, unless vacuum box tested API 653, 12.1.7
Diesel Oil The first pass of new shell-to-bottom welds and the final new shell-to-bottom weld, unless the final weld is vacuum box tested
API 653, 12.1.7 12.1.6.1
12.1.6 Shell-to-bottom Weld12.1.6.1 New welding on the shell-to-bottom joint shall be inspected for its entire length by using a right-angle vacuum box and a solution film, or by applying light diesel oil. Additionally, the first weld pass shall be inspected by applying light diesel oil to the side opposite the first weld pass made. The oil shall be allowed to stand at least 4 hours
(preferably overnight) and then the weld inspected for wicking action. The oil shall be removed before the weld is completed.Remove 12.1.7 and add 12.1.6.1
Diesel OilFloating roof deck seams and other joints required to be liquid tight or vapor tight
API 650, Section H.6.2 and Section C.4.2
Air Test
Repad-to-shell, repad-to-nozzle, and nozzle-to-shell welds of new or altered shell nozzles
API 653, 12.4 API 650, 7.3.4
12.4 Leak TestsNew or altered reinforcing plates of shell penetrations shall be given an air leak test in accordance with API 650, Section 7.3.4.Add API 650, 7.3.4
Air Test
Initial pass of the shell-to-bottom welds and inside and outside of the shell, if the weld is not tested by vacuum box or diesel oil API 653, 12.1.6.2
REInsert plates for installing penetration butt-welds shall be fully radiographed API 653, 12.2.1.8
RERepairs to butt welds, unless ultrasonically examined API 653, 12.1.3.2
RE
Vertical and horizontal joints and junctions of new shell plates welded to new shell plates and new plates welded to existing plates. This section covers shell replacement plates and door sheets API 653, 12.2
RETank shell butt welds on reconstructed tanks API 653, 12.2.1.5
RE New annular plate joints API 650, 8.1.2.9
RENew and replaced shell insert plate and door sheet welds API 653, 12.2.1.6
RE
Vertical and horizontal shell joints as required by API 653, 12.3.2.3.5, specific hydrostatic test exemption requirements API 653, 12.3.2.3.5
Definitions:MTPT= Magnetic Particle and Liquid Penetrant ExaminationRE= Radiographic ExaminationUE= Ultrasonic ExaminationVB= Vacuum Box TestingVE=Visual Examination
Acceptance Standards:Air Test: None
Diesel Oil: NoneMTPT: ASME Section VIII, Appendix 8 (paragraphs 8-3, 8-4, 8-5)RE: ASME Section VIII (paragraph UW-51(b))Tracer Gas: NoneUE: API Std. 650, Section 8.3.2.5VB: NoneVE: API Std 650, Section 8.5.1
Examiner Qualifications:Air Test: NoneDiesel Oil: NoneMTPT: API Std 650, Section 8.2.3RE: ASNT SNT-TC-1A Level II or III. Level I personnel may be used under the supervision of Level II or Level III personnel with a written procedure in accordance with ASME Section V, Article 2.Tracer Gas: NoneUE: ASNT SNT-TC-1A Level II or III. Level I personnel may be used under the supervision of Level II or Level III personnel with a written procedure in accordance with ASME Section V, Article 2.VB: API Std 650, Section 8.6.4VE: API Std 650, Section 8.5.1
Procedure Requirements:Air Test: API Std 650, Section 7.3.5Diesel Oil: NoneMTPT: ASME Section VRE: ASME Section V, Article 2Tracer Gas: API Std 650, Standard 8.1.11.cUE: ASME Section VVB: API 650, Section 8.6VE: None
