
ISO 3822-1:1999/DAMD-1. Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations. Part 1. Method of measurement. Amendment 1: Measurement uncertainty
出版:British Standards Institution

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ISO 3822-1:1999/DAMD-1. Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations. Part 1. Method of measurement. Amendment 1: Measurement uncertainty
出版:British Standards Institution
专家解读视频