DEFSTAN 68-17/2(1991) : 1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
NITRIC ACID, TYPES 1 AND 2
06-25-2001
01-12-2013
Specifies the requirements for two types of nitric acid suitable for metal cleaning and other industrial processes.
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