Russian standards PDF
Rotating electrical machines. Part 31. Selection of energy-efficient motors including variable speed applications. Application guide
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Noise of machinery. Determination of emission sound pressure levels at a work station and at the other specified positions in an essentially free field over a reflecting plane
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Noise of machinery. Determination of emission sound pressure levels at a work station and at the other specified positions applying approximate environmental corrections
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Reciprocating internal combustion engines. Exhaust emission measurement. Part 10. Test cycles and test procedures for field measurement of exhaust gas smoke emissions from compression ignition engines operating under transient conditions
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General requirements for the competence of reference material producers
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Conformity assessment. General requirements for proficiency testing
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