State system for ensuring the uniformity of measurements. Platinum, copper and nickel resistance thermometers. General technical requirements and test methods
State system for ensuring the uniformity of measurements. Low power SHF wattmeters of frequency range 0,02-178,6 GHz. Verification and calibration methods
Safety of household and similar electrical appliances. Particular requirements for electric shavers, hair clippers and similar appliances and test methods
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