Appliance couplers for household and similar general purposes; part 2: sewing machine couplers (IEC 320-2-1 (1984 - 1st edition) modified); German version EN 60230 part 2-1, edition 1986
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 washing machines and spin extractors (IEC 60704-2-4:1989); german version HD 423.2.4 S1:1989— 9 стр.