Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-1: Particular requirements for vacuum cleaners (IEC 60704-2-1:2000); German version EN 60704-2-1:2001— 16 стр.
Measurement of noise emitted by machines; airborne noise emission; enveloping surface method and special reverberation room method; household and similar electrical appliances; particular requirements for vacuum cleaners; (IEC 704-2-1:1985 modified); german version HD 423.2.1 S1:1986 (as of 1989)— 7 стр.
Measurement of noise emitted by machines; airborne noise emission; enveloping surface method and special reverberation room method; household and similar electrical appliances; particular requirements for vacuum cleaners; identical with IEC 60704-2-1, edition 1984— 6 стр.
