Third Party Inspection for Ground Storage Tank-

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            Reference Documents- 1.     Design code 2.     Purchase order specification 3.     Purchaser's standards 4.     Approved drawings 5.     API 650 6.     API 620 7.     API 653 8.     BS 2654 Inspection Activities from start to finish-              Material Inspection            Fabrication Inspection            Plate Preparation            Shell Courses and Base Plates containing Welded Seams            Post Weld Heat Treatment of Hot Formed Components            Assembly Inspection             Painting and Coating              ...
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Third Party Inspection for Water Tube Boiler - Procedure

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Reference Codes-

  • Design code
  • Purchase order specification
  • Purchaser's standards
  • Approved drawings
  • ASME I
  • ASME V
  • ASME IX
  • BS 1113

Required Documents for Third Party Inspector Review:
  • Manufacture Quality Control Plan 
  • ITP
  • Data Sheet
  • Approved Drawings
  • Strength calculation sheets
  • Material Test Reports
  • WPS  and PQR
  • Welding Map
  • Repair Procedure
  • WQR
  • NDE procedures (VT,RT,UT,MPT,DPT and PMI)
  • NDE Personnel Qualifications Reports
  • Heat treatment procedure
  • Calibration Certificates for test equpments
  • Hydrostatic Testing Procedure and Water Quality Document
  • Painting Procedure
  • Preservation,Packing and Shipping Procedure 
  • Packing List

Inspection activities for Water Tube Boiler -
           (From start to finish)-
  • Material Inspection
  • Fabrication
  • Tubes and Integral Piping
  • Post Hydrostatic Testing
  • Final Assembly
  • Name Plate Checking
  • Painting and coating 
  • Spares, Loose Items, Tools and Accessories:
  • Reporting:
  • Release Note:
  • Packing, 
  • Marking and Shipping:
  • Final Book (Dossier)


The following final documents are reviewed and signed off by third party inspector-

  • As built, drawings if required, 
  • Manufacturer's data reports, 
  • Material certificate or certified mill test reports for all pressure parts, 
  • Material list or map, 
  • Welder record for each seam or map, 
  • Heat treatment records (Temperature-time record chart during (PWHT), 
  • Dimensional record,
  • NDE records, 
  • Production test record/mock test record, 
  • Alloy verification records, (if required), 
  • Hydrostatic test record, 
  • Pneumatic test record Hardness test record, 
  • Post weld heat treatment NDE, if specified, 
  • Name plate or other marks, 
  • Packing list, 
  • Spare parts and tool list

Other Topics-

Third Party Inspection for Shell and Tube Heat Exchanger-


 Third Party Inspection for Valve - Procedure-

Third Party Inspection for Ground Storage Tank-


Third Party Inspection for Pressure Vessel –


Flanges Used In Oil and Gas Field-


(Importants) ASME and National Board Stamps-


Pressure Vessel Inspection as per ASME SEC VIII DIV.1


Third Party Inspection for Fire Tube Boiler - Procedure

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