Measurement of noise emitted by machines; Airborne noise measurement, enveloping surface method; Test report (test record) form for enveloping surface method— 6 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 washing machines and spin extractors (IEC 60704-2-4:1989); german version HD 423.2.4 S1:1989— 9 стр.
