DEF 37 : 1959-05-13
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PHOSPHORIC ACID DE-RUSTING SOLUTION, INHIBITED
01-03-1991
12-01-2013
Covers an inhibited solution of phosphoric acid for the de-rusting of steel. Details description tests, inspection, packaging and method for determination of phosphoric acid content in text.
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