Methods for determination of airborne acoustical noise emitted by household and similar electrical appliances. Particular requirements, Forced draught convection heaters— 14 стр.
Test code for the determination of airborne acoustical noise emitted by household and similar electrical appliances. Particular requirements, Forced draught convection heaters— 14 стр.
Test code for the determination of airborne acoustical noise emitted by household and similar electrical appliances. Particular requirements, Forced draught convection heaters— 14 стр.
