Russian standards PDF
Electrical apparatus for explosive gas atmospheres. Part 15. Construction, test and marking of type of protection 'n' electrical apparatus
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Automobile roads of the general use. Road signs. Technical requirements
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Pipeline valves. Knife gate valves for trunk pipelines. General specifications
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Gas supply system. Gas main pipeline transportation. Mechanical safety. Assigning of safe operation life for linear part of gas main pipeline
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Uncertainty of measurement. Part 3. Guide to the expression of uncertainty in measurement. Supplement 2. Extension to any number of output quantities
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Explosive atmospheres. Part 1. Equipment protection by flameproof enclosures 'd'
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