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Thermochemical signalling devices of combustible gases and vapours. General specifications
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Unified system of design documentation. Rules for presentation of vacuum schemes
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Low-voltage switchgear and controlgear assemblies. Part 5. Assemblies for power distribution in public networks
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Primary and secondary cells and batteries. Terms and definitions
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Explosive atmospheres. Part 39. Intrinsically safe systems with electronically controlled spark duration limitation
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Warper`s and weaver`s beams. Methods of assessment of the quality class for flanges
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