Browse Standards J421_199305
Historical REAFFIRMED 1993-05-01

CLEANLINESS RATING OF STEELS BY THE MAGNETIC PARTICLE METHOD J421_199305

This SAE Recommended Practice provides a rating procedure for the cleanliness rating of steels by the magnetic particle method. The procedure is based on counting the number of indications (frequency) and employs a weighted value to obtain a severity factor. The method outlined is similar to that described in SAE Aerospace Material Specification AMS 2301.
J421_201801
2018-01-09
Latest
Stabilized
J421_199305
1993-05-01
Historical
Reaffirmed
J421B_197711
1977-11-01
Historical
Revised

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