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Electrical apparatus for use in the presence of combustible dust. Part 1. Electrical apparatus protected by enclosures and surface temperature limitation. Section 1. Specification for apparatus
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Semiconductor silicon, raw materials for its production and quartz. Methods of phosphorus determination
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Reciprocating internal combustion engine driven alternating current generating sets. Part 5. Generating sets
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Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V. Non-sheathed cables for fixed wiring
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Heat recovery steam generators of combined cycle plants. Types and basic parameters
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