Russian standards PDF
Buildings and constructions. Calculation of temperature field nodes of enclosing structures
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Non-destructive testing. NDT personnel training organizations
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Methods for the petrographic analysis of coals. Part 4. Method of determining microlithotype, carbominerite and minerite composition
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Brown coals, hard coals and anthracite. Size classification
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Non-destructive testing. Optical methods. Technical endoscopes with measurement function. General requirements
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Brown coals, hard coals, anthracite, combustible shales and coal briquettes. Methods of sampling and preparation of samples for laboratory tests
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