Каталог стандартов

+7 (495) 223-46-76 +7 (812) 309-78-59
inform@normdocs.ru

ISO 389-3:1994

Заменен
Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators — 20 стр.
Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent treshold force levels for pure tones and bone vibrators; Technical corrigendum 1 — 2 стр.