Russian standards PDF

Explosive atmospheres. Part 5. Equipment protection by powder filling 'q'

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Programmable hearing aids. Specification of a digital interface devices. Dimensions of electrical connectors

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Electroacoustics. Hearing aids. Part 7. Measurement of the performance characteristics of hearing aids for production, supply and delivery quality assurance purposes

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Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V. Part 6. Lift cables and cables for flexible connections

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Electric cables. Calculation of the current rating. Part 1-3. Current rating equations (100 % load factor) and calculation of losses. Current sharing between parallel single-core cables and calculation of circulating current losses

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Specifications for particular types of winding wires. Part 0-6. General requirements. Glass-fibre wound resin or varnish impregnated, bare or enamelled round copper wire

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