DEFSTAN 68-38/1(1975) : 1975
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
BARIUM SULPHATE, PRECIPITATED
21-07-1995
12-01-2013
Defines precipitated barium sulphate, as an ingredient of pyrotechnic compositions and high explosive substitute.
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