This specification covers steel cleanliness requirements in inch/pound units for special aircraft-quality ferromagnetic steels, including hardenable corrosion resistant steels, by magnetic particle inspection methods. This specification contains sampling, sample preparation, inspection procedures and cleanliness rating criteria (See 8.2).
The metric version, MAM2304, has been cancelled. The SI units have been included in this specification, but the inch/pound units are primary (See 8.7)
AMS2304B has been reaffirmed to comply with the SAE five-year review policy.