Russian standards PDF

Mechanical vibration. Industrial fans. Measurement of vibrations

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Explosive atmospheres. Explosion protection and prevention. Part 2. Basic concepts and methodology (for mining)

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Equipment and components intended for use in potentially explosive atmospheres in underground mines

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Longwall powered roof chocks. Basic parameters. General technical requirements. Test methods

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Explosive atmospheres. Part 13. Equipment protection by pressurized room 'p'

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Explosive atmospheres. Part 28. Protection of equipment and transmission systems using optical radiation

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