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DEFSTAN 68-202/1(1993) : 1993 AMD 1 1999
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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DIATOMACEOUS EARTH FOR WATER FILTRATION EQUIPMENT
Superseded date
22-06-2001
Published date
12-01-2013
Publisher
Covers grades of diatomaceous earth (kieselguhr) for use in equipment for water filtration.
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