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Filter paper and board. Method for determining leak-tightness
STANDARD published on 1.1.1989
Designation standards: GOST 21956-88
Publication date standards: 1.1.1989
SKU: NS-385809
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: Russian technical standard
Category: Technical standards GOST
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