O-A-445B (AMENDMENT 1), FEDERAL SPECIFICATION: AMMONIA, TECHNICAL (05 MAY 1983) [NO S/S DOCUMENT]
O-A-445B (AMENDMENT 1), FEDERAL SPECIFICATION: AMMONIA, TECHNICAL (05 MAY 1983) [NO S/S DOCUMENT]., This specification covers one grade of compressed anhydrous ammonia for refrigeration and nitriding purposes.
O-A-445 Rev. B
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