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DEFSTAN 68-75/2(1993) : 1993
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BREATHING GAS PURITY FOR DIVING
Superseded date
30-06-1995
Published date
12-01-2013
Publisher
Gives the requirements, including essential purity and dryness for oxygen, air or any Heliox or Nitrox mixture supplied under pressure in cylinders for diving.
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