Quality Assurance : Testing Methods
Testing Methods: Northwest Pipe Company’s dedication to quality is demonstrated through advanced testing laboratories and equipment to meet your Company’s needs.
- Ultrasonic examination per AWS D1.1, ASME Section 5, API 5L & 5CT, and ASTM E273
- Radiographic and radioscopic examination per AWS D1.1, ASME Section 5, API 5L, API 1104, ASTM E94, ASTM E1416 and ASTM E1255
- Magnetic Particle examination per AWS D1.1, ASME Section 5, and ASTM E709
- Liquid Penetrant examination per AWS D1.1, ASME Section 5, and ASTM E165
- Eddy Current examination per API 5L & 5CT, and ASTM E309
- Visual examination per ASME Section 5 and AWS D1.1
- Concrete compression testing per ASTM C39
- Sand Sieve analysis per ASTM C33
- Coal Tar Penetration testing per ASTM D5
- Concrete Absorption testing per ASTM C497
- Microhardness testing per ASTM E384, API 5L, API 5CT, and CSA Z245.1
- Charpy Impact testing per ASTM A370, ASTM E23, API 5L, API 5CT, and CSA Z245.1
- Tension testing per ASTM A370 & E8
- Leak testing per ASTM E515
- Untempered martensite inspection per API 5L and API 5CT
- Spectrographic product chemical analysis per ASTM A751, API 5L, API 5CT & CSA Z245.1
