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STN 331550 (331550)

Electrical engineering regulations. Preventive maintenance of electrical apparatus for explosive atmospheres in mines

STANDARD published on 1.8.1990

Czech -
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The information about the standard:

Designation standards: STN 331550
Classification mark: 331550
Catalog number: 57677
Publication date standards: 1.8.1990
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Slovak technical standard
Category: Technical standards STN