ITP Verification

The ITP is a document used for QA/QC. An ITP outlines how the quality of an asset will be ensured through the manufacturing/fabrication process.

An ITP will outline several different testing and inspection tasks. For instance, destructive testing of materials may be done during the initial construction phase of the project to ensure that the materials have the prescribed properties and that the craftsmen working with the materials have the required certifications, qualifications, and skill level for the tasks required. Once the manufacturing process begins, nondestructive methods are primarily used in the manufacturing/fabrication of the asset.

Nondestructive inspection methods include RT, MT, PT, VT, UT, Shear wave, PAUT, PMI, Brinell Hardness, and Ferrite testing. The ITP will also establish a schedule, including “hold points” in the manufacturing/fabrication process, to validate that the necessary inspections have been performed and are sufficiently documented.

Sigma recommends the following basic list of tasks, and documentation to verify, in the ITP:

1. QA/QC Manual
2. Health, Safety, and Environmental (HSE) Manual
3. BOM
4. MTR
5. As-Built Drawings 
   1. Engineering drawings, P&IDs, and Wiring Diagrams compliance 
   2. Field measurements on all equipment
   3. Inspection notes
   4. Update/revise As-Built drawings
6. Welding
   1. Procedures
   2. Welder Certifications and qualifications
   3. Weld Maps
7. NDT/NDE
   1. Written Practice
   2. Procedures – RT, MT, PT, VT, UT, Shear wave, PAUT
   3. Technician ASNT Certifications and qualifications
   4. Reports
   5. Radiographic film (developed)
8. Test Instruments and Equipment Calibration / Certifications
9. Engineering Calculations & Finite Element Modelling (FEM)
10. Hydrostatic Testing and reports
11. Painting and Coating Inspection and reports
12. ASME U Stamp specifications
13. E&I  - P&IDs, and Wiring Diagrams compliance 
14. Witness any inspections performed by others
15. Witness Run tests and reports
16. Witness Final Acceptance Test (FAT)
17. FAT Punch List
18. Photographs (all inspections, tests, and equipment) on-site
19. Owners Operation and Commissioning Manual
20. Equipment Data Book

Sigma provides ITP verification as part of the company's core competency in Third-Party Verification (Vendor Surveillance) and QA/QC review/oversight.