Birikim Mühendislik

Quality Control


In accordance with the requests of our customers, the “Inspection Test Plan – ITP” is prepared and the production and test processes are recorded and these records are presented to our customers in the “Quality File”.

Quality files vary according to customer specifications, but basically consist of material certificates, WPS, PQR, welder certificates, measurements of manufacturing in different processes, surface preparation degrees, measurements of paint and environmental conditions and reports of special processes (stress relieving, hardening, NDT reports, static balance, etc.), if any. The following procedures are carried out as standard in the controls of the productions.

  • Material Incoming Control
    • Destructive tests (subcontractor)
  • Traceability
  • General Measurement Control
  • Hardness Measurements
  • Surface Roughness Control for Machining Parts
  • Preassembly Control
  • Balance Control
  • Non Destructive Testing (NDT)
    • VT
    • MT
    • PT
    • UT(subcontractor)
    • RT (subcontractor)
  • Pressure Tests
  • Leakage Tests
  • Coating Tests (Galvanize, Rubber and Polyurea etc.)
    • Adhesion (Galvanize, Rubber and Polyurea etc.)
    • Hardness (Rubber and Polyurea etc.)
    • Thickness (Galvanize, Rubber and Polyurea etc.)
  • Blasting Degree Determination Measurements
    • Method A
    • Method B
    • Method C
  • Salt Contamination Tests
  • pH Measurement
  • Temperature and Humidity Measurement
  • Paint Thickness Measurement
  • Adhesion Tests
    • Cross Cut
      • Method A
      • Method B
    • Pull Off Test
  • Holiday Test
  • Pinholes Tests

The processes specified above are carried out by our Quality Control group according to ISO 9001, EN 3834-2, EN 1090, SSPC, EN 9712, EN 12944, EN 8501, AWS, API, ASME, AS etc. standards.