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Explosive atmospheres. Part 29-4. Gas detectors. General technical requirements and test methods of open path detectors for flammable gases

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Radio-frequency cable type PK 75-2-12. Specifications

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Heat exchangers. Test methods for determining the power criteria of air/air and an air/exhaust gas mixture heat recovery devices

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Mechanical environment stability test methods for machines, instruments and other industrial products. Determination of dynamic characteristics of structure

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Plugs and socket-outlets for household and similar purposes. Part 2. Particular requirements for plugs and socket-outlets for SELV and methods of tests

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Cables and wires. Method for the determination of dielectric power factor

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