Ссылочный номер
ISO 389-3:1994
ISO 389-3:1994
Acoustics — Reference zero for the calibration of audiometric equipment — Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators
Версия 1
1994-09
В время отменен
ISO 389-3:1994
22495
Отозвано (Версия 1, 1994)

Тезис

Specifies the following data applicable to the calibration of bone vibrators for pure-tone bone-conduction audiometry: reference equivalent threshold force levels (RETFL), corresponding to the threshold of hearing of young otologically normal persons by bone-conduction audiometry; essential characteristics of the bone vibrator and of its method of coupling to a person under test and to the mechanical coupler; essential characteristics and datum level of the masking noise applied to the ear not under test.

Общая информация

  •  : Отозвано
     : 1994-09
    : Отмена международного стандарта [95.99]
  •  : 1
  • ISO/TC 43
    13.140 
  • RSS обновления

Жизненный цикл

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