PQS can assist your company to achieve specification & quality requirements during the manufacture of your projects in China by working independently as your “eyes & ears” in the factory, or as part of your project management team.
Listed below are some of the inspection activities generally performed by PQS on behalf of our clients, including but not limited to:
Welding
ü Materials Inspection & control (material traceability, positive material identification, mill certificates check).
ü Review of ITP, quality control procedures.
ü Review of welder & welding procedure qualification (witness welding & testing as per welding standards).
ü Calibration tests of machinery, tools, instruments & gauges.
ü Fit-up inspection.
ü Welding process control and visual inspection.
ü Dimension inspection & control.
ü Post Welding Heat Treatment control.
ü Witness of tests of pressure, hardness, leak, mechanical, performance etc).
ü FAT-Factory Acceptance Tests.
ü Pre shipment inspection (inspection of equipment condition prior to delivery)
Non-destructive Testing
ü Review of NDE documents and procedures.
ü Radiograph interpretation of the RT film.
ü The NDE report accurateness check.
ü Independent professional UT/MT/RT/PT inspection.
ü Ultrasonic thickness measurement.
Coating
ü Roughness checking.
ü Holiday test.
ü Adhension test.
ü Film thickness measurement.
ü Anti-corrosion and insulation inspection.
PQS inspectors and engineers are certified in welding, non-destructive testing and coating. They hold one or more certificates of CWI, CSWIP, ASNT, PCN, NACE, SSPC.
