Section 9 — Storage Tanks
Low Pressure Storage Tank Inspection Checklist
IPE Engineering Practice IPE-EP-9-2-1C
Document number: IPE-EP-9-2-1C · Section: 9 — Storage Tanks
THE MANUFACTURER OF EQUIPMENT PURCHASED BY INFLECTION POINT ENGINEERING, LLCSHALL BE RESPONSIBLE FOR MEETING ALL APPLICABLE REQUIREMENTS OF THE IPE ENGINEERING PRACTICE AND OTHER DOCUMENTS REFERENCED THEREIN REGARDLESS OF WHETHER THE ITEMS ARE INSPECTED BY A IPE REPRESENTATIVE.
REFERENCES
THE LATEST EDITION OF THE FOLLOWING STANDARDS AND PUBLICATIONS ARE REFERRED TO HEREIN
IPE ENGINEERING PRACTICES
EP 4-2-7 FOUNDATIONS FOR ATMOSPHERIC STORAGE TANKS EP 4-2-4 PILE FOUNDATIONS
EP 4-3-2C CONCRETE CONSTRUCTION INSPECTION CHECKLIST EP 7-1-1 PRESSURE VESSELS
EP 7-1-3 WELDING REQUIREMENTS FOR PRESSURE VESSELS
EP 9-3-1 SUPPLEMENTAL REQUIREMENTS FOR ATMOSPHERIC STORAGE TANKS EP 10-3-1 SHOP PAINTING
EP 10-3-7 INTERNAL LINING AND RESIN REPAIR
EP 11-1-1C INTERNAL INSULATING AND REFRACTORY LININGS INSPECTION CHECKLIST
API PUBLICATIONS
STD 620 LOW PRESSURE STORAGE TANKS
STD 650 WELDED STEEL TANKS FOR OIL STORAGE
FREQUENCY OF CONTACT BY THE INSPECTOR (CHECK ONE)
LEVEL L: ON CALL BY FABRICATOR LEVEL 2: ONCE EVERY TWO WEEKS LEVEL 3: EVERY WEEK
LEVEL 4: DAILY
LEVEL 5: RESIDENT
LEVEL 6. OTHER, SPECIFY
LEVEL OF INSPECTION BY THE INSPECTOR (CHECK ONE)
LEVEL L: PREFABRICATION MEETING, DOCUMENT REVIEW, AND FINAL INSPECTION
LEVEL 2: PREFABRICATION MEETING, DOCUMENT REVIEW. REVIEW ITEMS. AND FINAL INSPECTION LEVEL 3: PREFABRICATION MEETING. DOCUMENT REVIEW, REVIEW ITEMS. WITNESS POINTS, AND FINAL
INSPECTION
LEVEL 4: PREFABRICATION MEETING, DOCUMENT REVIEW, REVIEW ITEMS, WITNESS POINTS, HOLD POINTS, AND FINAL INSPECTION
LEVEL 5. OTHER, SPECIFY
DOCUMENT REVIEW (SHOP INSPECTOR SHALL REVIEW)
| DOCUMENT DESCRIPTION (REFERENCES TO EP 9-2-1 UNLESS OTHERWISE NOTED) |
INSPECTOR’S INITIALS (REVIEW COMPLETE) | DATE | |
|---|---|---|---|
| IPE PURCHASE DOCUMENTS | |||
| DRAWINGS AND SPECIFICATIONS | |||
| QUALITY CONTROL MANUAL (EP 9-3-1: 5.3) | |||
| QUALITY CONTROL PLAN (5.0, EP 9-3-1: 5.3.2) | |||
| MATERIAL RECEIVING SIGN-OFF | |||
| MATERIAL REQUISITIONS | |||
| IMPACT TEST REPORTS (EP 9-3-1:Table 1) | |||
| MATERIAL TEST REPORTS (EP 9-3-1:Table 1) | |||
| TEST EQUIPMENT CALIBRATION CERTIFICATIONS | |||
| WELDING PROCEDURE SPECS (API 620:4.7.1,EP 7-1-5:5.0) | |||
| WELDER QUALIFICATION RECORDS (API 620, EP 7-1-5: 7.0) | |||
| WELDER TRACEABILITY DOCUMENT | |||
| NDE PROCEDURES | |||
| NDE TEST REPORTS (EP9-3-1:Table 1) | |||
| NDE PERSONNEL CERTIFICATION (EP 9-3-1:Table 1) | |||
| DAILY COATING INSPECTION REPORT (EP 10-3-1: 10.8) | |||
| SUB-CONTRACTOR Q/C REPORTS | |||
| AS-BUILT DATA SHEET | |||
| PWHT CHARTS AND/OR RECORDS (EP 9-3-1: Table 1) | |||
| TEST LOGS AND CHARTS OF PRESSURE TESTS (EP 9-3-1: Table 1) | |||
| AUTHORIZED WAIVERS AND/OR DEVIATIONS REVIEW | |||
| REVIEW OF SUBORDERS OF UNPRICED PURCHASE ORDERS TO SUB- VENDORS FOR COMPLIANCE WITH IPE ENGINEERING PRACTICE | |||
GENERAL FABRICATION INSPECTION REQUIREMENTS (Applies To All Fabricated Equipment)
R CHECK: THE SHOP INSPECTOR SHALL REVIEW DOCUMENTED RESULTS OF INSPECTION PERFORMED BY VENDOR'S INSPFCTOR OR SUBCONTRACTED INSPECTOR.
W CHECK: INDICATES THE SHOP INSPECTOR SHALL WITNESS ITEMS DURING FABRICATION SHOP SHALL NOTIFY INSPECTOR 2 DAYS IN ADVANCE OF FABRICATION POINT BUT NEED NOT HOLD PRODUCTION FOR INSPECTION.
H CHECK: INDICATES THE SHOP INSPECTOR SHALL INSPECT ITEMS DURING HOLD ON FABRICATION. SHOP SHALL NOTIFY INSPECTOR FIVE DAYS IN ADVANCE OF FABRICATION POINT AND SHALL NOT CONTINUE AFFECTED PRODUCTION UNTIL INSPECTOR PERFORMS AND IMPROVES FABRICATION AFTER INDICATED INSPECTION.
| R | W | H | INSPECTION/TESTING ACTIVITY | INSPECTOR’S INITIALS (REVIEW COMPLETE) | DATE |
|---|---|---|---|---|---|
| GENERAL INSPECTION | GENERAL INSPECTION | GENERAL INSPECTION | GENERAL INSPECTION | GENERAL INSPECTION | GENERAL INSPECTION |
| TANK WALLS WITH GREATER THAN 1/3 ALLOWABLE MEMBRANE STRESS CONFORM TO CURVATURE TOLERANCES (API 620: 4.4.1 OR 4.4.2) | |||||
| HARDNESS VALUES OF MATERIALS AND WELDS FOR AGGRESSIVE ENVIRONMENTAL SERVICES ARE ACCEPTABLE (6.6, EP 10-2-1: 4.1) | |||||
| ANNULAR PLATE MATERIAL SAME AS BOTTOM COURSE FOR FLAT BOTTOM TANKS (6.8) | |||||
| MATERIALS FOR STRUCTURAL ATTACHMENTS SAME MATERIAL AS SHELL (6.9) | |||||
| FIREPROOFING OF STRUCTURAL MEMBERS COMPLETED PER REQUIREMENTS (7.10) | |||||
| ALL ATTACHMENT WELDING PERFORMED IN SHOP WFMT INSPECTED AFTER PWHT (8.1.2) | |||||
| ALL SHELL JOINT AND CONNECTION WELDS BACKGOUGED AND INSPECTED PRIOR TO WELDING SECOND SIDE (8.2.3) | |||||
| SHELL TO ANNULAR PLATE WELDED PER DESIGN REQUIREMENT (8.2.4) | |||||
| ALL TEMPORARY ATTACHMENT WELDS GROUND OFF AND MT INSPECTED (8.2.6) | |||||
| PERMANENT ATTACHMENT WELDS CONTINUOUSLY FILLET WELDED (8.2.3) | |||||
| PRODUCTION WELD TEST PLATES MADE AND TESTED ACCORDING TO REQUIREMENTS (8.2.3 AND API 620: Q .6.6) | |||||
| ALL WELDING COMPLETED BEFORE HYDROTEST (8.2.9) | |||||
| HEAT TREATMENT COMPLETED ACCORDING TO REQUIREMENTS (8.3) | |||||
| FOR FIELD ERECTION THE MAXIMUM GAPBETWEEN REINFORCING PAD TO SHELL MAINTAINED (8.4.2) | |||||
| SLIP ON FLANGES PROPERLY POSITIONED ON NOZZLES (8.4.3) | |||||
| FOR FLAT BOTTOM TANKS, MAXIMUM LIMITS ON BANDING AND PEAKING OF SHELL WELDS MAINTAINED (8.4.5, 8.4.6) | |||||
| NAMEPLATE MEET REQUIREMENTS (8. 5) | |||||
| ALLOY SAMPLING COMPLETED AND ACCEPTED (9.1.3) | |||||
| ALL MANHOLES, NOZZLES, AND FLUSH-TYPE CLEANOUT FITTINGS INSPECTED AT SHOP (9.1.5) | |||||
| EXTENT AND LOCATIONS OF RADIOGRAPHY ACCEPTED (9.2.2, 9.2.3, AND API 620: 5.16 AND 5.17) |
|||||
| RADIOGRAPHS ACCEPTABLE TO CODE CRITERIA (API 620: 5.15.4) |
GENERAL FABRICATION INSPECTION REQUIREMENTS
| R | W | H | INSPECTION/TESTING ACTIVITY | INSPECTOR INITIALS (REVIEW COMPLETE) | DATE |
|---|---|---|---|---|---|
| GENERAL INSPECTION (CONTINUED) | GENERAL INSPECTION (CONTINUED) | GENERAL INSPECTION (CONTINUED) | GENERAL INSPECTION (CONTINUED) | GENERAL INSPECTION (CONTINUED) | GENERAL INSPECTION (CONTINUED) |
| UNACCEPTABLE WELDS REPAIRED AND RERADIOGRAPHED (API 620: 5.15.5) | |||||
| WELDS IN PARTS TO BE COLD WORKED RT AND MT OR PT EXAMINED (9.2.8) | |||||
| NOZZLES IN SHELLS GREATER THAN 1-1/2" UT EXAMINED (EP 7-1-1: 9.3) | |||||
| FILLER METALS REQUIREMENTS (EP 7-1-5 or EP 9-1-2, AS APPROPRIATE) | |||||
| VERTICAL TANK SHELL CUT-OUT WELDS 100% MT/PT EXAMINED (EP 9-1-1: 11.4.4) | |||||
| NOZZLES, COUPLINGS, AND MANWAY CONNECTIONS BACKGOUGED AND MT/PT EXAMINED, VERTICAL TANK SHELLS ONLY (EP 9-1-1: 11.4.3) | |||||
| ANNULAR RING WELDS NOT RT EXAMINED MT/PT EXAMINED (EP 11-1-1: 11.4.5) | |||||
| ALL NON-VERTICAL SHELL TANKS DOUBLE WELDED GROOVE JOINTS BACKGOUGED AND MT/PT EXAMINED (EP 7-1-1: 9.4.4) | |||||
| FOR NON-VERTICAL SHELL TANKS, ALL WELDS LISTED IN EP 7-1-1: 9.4.5 ARE MT/PT EXAMINED | |||||
| FOR TANKS REQUIRING 100% RT, WELDS LISTED IN EP 7-1-1: 9.4.6 ARE MT/PT EXAMINED | |||||
| FOR NON-VERTICAL SHELL TANKS, NOZZLES WHICH CANNOT BE RT EXAMINED, ARE MT/PT EXAMINED (EP 7-1-1: 9.4.7) | |||||
| ALL BOTTOM PLATE WELDS ACCEPTED BY VACUUM TESTING (EP 9-1-1: 11.5.1) | |||||
| PRELIMINARY REQUIREMENTS FOR PRESSURE TEST COMPLETED (API 620: 5.23.2) | |||||
| PROCEDURE FOR PRESSURE TEST ACCEPTED:(API 620: 5.23.3 OR 5.23.4 AND EP 7-1-1: 11.0) | |||||
| PRESSURE TEST COMPLETED (11.0) | |||||
| PARTIAL VACUUM TESTING COMPLETED (API 620: 5.23.5) | |||||
| FOUNDATION INSPECTION (SEE EP 4-2-7, UNLESS OTHERWISE NOTED) | FOUNDATION INSPECTION (SEE EP 4-2-7, UNLESS OTHERWISE NOTED) | FOUNDATION INSPECTION (SEE EP 4-2-7, UNLESS OTHERWISE NOTED) | FOUNDATION INSPECTION (SEE EP 4-2-7, UNLESS OTHERWISE NOTED) | FOUNDATION INSPECTION (SEE EP 4-2-7, UNLESS OTHERWISE NOTED) | FOUNDATION INSPECTION (SEE EP 4-2-7, UNLESS OTHERWISE NOTED) |
| SUBSURFACE INVESTIGATION COMPLETED AND EVALUATED BY GEOTECHNICAL CONSULTANT (4.0) | |||||
| SITE IMPROVEMENT PERFORMED IN ACCORDANCE WITH GEOTECHNICAL CONSULTANT RECOMMENDATIONS (5.0) | |||||
| DIMENSIONAL AND CONFIGURATIONAL REQUIREMENTS ACCEPTABLE PER TABLE 1 | |||||
| DIMENSIONS OF FOUNDATION WITHIN TOLERANCE (API 650: 5.5.6.2b) | |||||
| GENERAL FILL MEETS REQUIREMENTS (6.1.5) | |||||
| IN-PLACE DENSITY OF FILL ACCEPTABLE (6.1.6) | |||||
| LEAK CONTAINMENT PER REQUIREMENT (7.0) | |||||
| GRAVEL RINGWALL REQUIREMENTS (SEE EP 4-2-7) | |||||
| CRUSHED STONE FOR GRAVEL RINGWALL NOT GREATER THAN 1-1/2" DIA. AND MEETS ASTM D 693 REQUIREMENTS (6.1.4) | |||||
| GRAVEL RINGWALL COMPACTED TO 70% RELATIVE DENSITY IN ACCORDANCE WITH ASTM D 2049 (6.1.4) | |||||
| DIMENSIONS OF RINGWALL WITHIN TOLERANCE (API 650: 6.5.6.2b) |
GENERAL FABRICATION INSPECTION REQUIREMENTS
| R | W | H | INSPECTION/TESTING ACTIVITY | INSPECTOR’ S INITIALS (REVIEW COMPLETE) | DATE |
|---|---|---|---|---|---|
| PILE FOUNDATION INSPECTION (SEE EP 4-2-4) | PILE FOUNDATION INSPECTION (SEE EP 4-2-4) | PILE FOUNDATION INSPECTION (SEE EP 4-2-4) | PILE FOUNDATION INSPECTION (SEE EP 4-2-4) | PILE FOUNDATION INSPECTION (SEE EP 4-2-4) | PILE FOUNDATION INSPECTION (SEE EP 4-2-4) |
| RECORD OF PILING MAINTAINED (7.2) | |||||
| POSITION OF PILING ACCEPTED (7. 8) | |||||
GENERAL FABRICATION INSPECTION REQUIREMENTS
| R | W | H | INSPECTION/TESTING ACTIVITY | INSPECTOR INITIALS (REVIEW COMPLETE) | DATE |
|---|---|---|---|---|---|
| CONCRETE RINGWALL REQUIREMENTS (ATTACH EP 4-3-2C FOR CONCRETE INSPECTION) | CONCRETE RINGWALL REQUIREMENTS (ATTACH EP 4-3-2C FOR CONCRETE INSPECTION) | CONCRETE RINGWALL REQUIREMENTS (ATTACH EP 4-3-2C FOR CONCRETE INSPECTION) | CONCRETE RINGWALL REQUIREMENTS (ATTACH EP 4-3-2C FOR CONCRETE INSPECTION) | CONCRETE RINGWALL REQUIREMENTS (ATTACH EP 4-3-2C FOR CONCRETE INSPECTION) | CONCRETE RINGWALL REQUIREMENTS (ATTACH EP 4-3-2C FOR CONCRETE INSPECTION) |
| DIMENSIONS OF RINGWALL WITHIN TOLERANCE (API 650: 5.5.6.2a | |||||
| SHELL SETTLEMENT MEASUREMENTS PERFORMED BEFORE AND DURING FILLING AND DURING HYDROTEST PER REQUIREMENT (EP 9-1-1: 15.1.1-3) | |||||
| 100% VISUAL EXAMINATION PERFORMED FOR ALL DEPRESSIONS AND NOTED ON BOTTOM PLATE LAYOUT (EP 9-1-1: 15.1.4) | |||||
| SHELL SETTLEMENT COMPARED TO API 653 CRITERIA (EP 9-1-1: 5.2) | |||||
| EXTERIOR COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-1) | EXTERIOR COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-1) | EXTERIOR COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-1) | EXTERIOR COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-1) | EXTERIOR COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-1) | EXTERIOR COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-1) |
| SAND BLASTED SURFACES (10.5) | |||||
| COATINGS PREPARATION (10.6) | |||||
| WET FILM THICKNESS MEASUREMENTS (10.13) | |||||
| DRY FILM THICKNESS MEASUREMENTS (10.11) | |||||
| TESTING OF COATING (10.15) | |||||
| INTERNAL COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-7) | INTERNAL COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-7) | INTERNAL COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-7) | INTERNAL COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-7) | INTERNAL COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-7) | INTERNAL COATING INSPECTION WHEN REQUIRED (SEE EP 10-3-7) |
| INITIAL SURFACE INSPECTION(12.1) | |||||
| SAND BLASTING OPERATION (12.2) | |||||
| SURFACE PREPARATION PRIOR TO APPLICATION (12.5) | |||||
| CONDITION FOR APPLICATION OF COATING (12.7) | |||||
| DRY FILM THICKNESS MEASUREMENT (12.9) | |||||
| TESTING OF COATING (12.10, 11, 12) | |||||
| INSPECTOR SIGN-OFF | INSPECTOR SIGN-OFF | INSPECTOR SIGN-OFF | INSPECTOR SIGN-OFF |
|---|---|---|---|
| INITIALS | NAME | COMPANY | SOCIAL SECURITY NUMBER |
| SUMMARY: |
|---|
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