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Radio-frequency cable type PK 50-24-16. Specifications
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Explosive atmospheres. Part 11. Equipment protection by intrinsic safety 'I'
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Explosive atmospheres. Part 35-2. Caplights for use in mines susceptible to firedamp. Performance and other safety-related matters
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Lamps for household use. Methods for determination of energy efficiency
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Neutron generators. Method of fast neutron flux measurement
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