State system for ensuring the uniformity of measurements. Measurement of irradiance and dose ultraviolet radiation in photobiology. Procedure of measurements
Low-voltage switchgear and controlgear assemblies. Part 1. Requirements for type-tested and partially type-tested assemblies. General technical requirements and methods of tests
Non-domestic gas-fired convective air heaters, incorporating a fan to transportation of combustion air or combustion products, nominal heat output of up to 300 kW
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