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Semiconductor silicon and quartz. Method of impurities determination
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Methods of test for full-flow lubricating oil filters for internal combustion engines. Part 1. Differential pressure/flow characteristics
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Cable products for nuclear power plants. General technical requirements
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Photovoltaic systems. Power conditioners. Procedure for measuring efficiency
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Low-voltage switchgear and controlgear assemblies. Part 1. Requirements for type-tested and partially type-tested assemblies
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