Povučen
Specifies a method of measurement. Gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the sound power level of the source is calculated, leading to results which have a grade 2 accuracy.
POVUČEN
ISO 3744:1981
POVUČEN
ISO 3744:1994
95.99
Povučen
22. 9. 2010.
OBJAVLJEN
ISO 3744:2010
Akustika - Određivanje nivoa zvučne snage izvora buke na osnovu zvučnog pritiska - Inženjerska metoda u približno slobodnom polju iznad refleksione ravni
95.99 Povučen