Measurement of airborne noise emitted by machines; enveloping surface method and special reverberation room method; household and similar electrical appliances; general requirements— 17 стр.
17.140.20 Noise emitted by machines and equipment / Шум от машин и оборудования
97.030 Domestic. Including water-bed heaters and electric blankets / Бытовые электрические приборы в целом. Включая нагреватели водяных кроватей и электроодеяла
