Northrop Grumman Approvals

AMS 2630 Inspection, Ultrasonic, Product over 0.5 inch (12.7m) thick*NOTE* NGAS ASPL approval is required when testing is performed by a secondary source other than primary mill.
AMS 2631 Ultrasonic Inspection Titanium and Titanium Alloy Bar and Relief *NOTE* NGAS ASPL approval is required when testing is performed by secondary source other than primary mill
AMS 2700 Passivation Treatment for corrosion resistant steel
AMS-STD-2154 Ultrasonic, Wrought Metals, Process for *NOTE* NGAS ASPL approval is required when testing is performed by a secondary source other than primary
ASTM A967 Chemical Passivation treatment for stainless steel parts.
ASTM B594 Ultrasonic Inspection of Aluminum-Alloy wrought products. *NOTE* NGAS ASPL approval is required when testing is performed by a secondary source other than the primary mill
ASTM E1417 Liquid Penetrant
ASTM E1444 Magnetic Particle
ASTM E1742 Radiographic
ASTM E2375 Ultrasonic Testing of