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

Datum objavljivanja: 22. 9. 1994.

95.99 Povučen 4. 1. 2016.

Опште информације

Trenutna faza: 95.99 Effective date: 4. 1. 2016.

Inicijator: ISO

Pripada: ISO/TC 43

Vrsta: Međunarodni standard

ICS: 13.140

Jezik: francuski engleski

Kupovina

Status: Povučen

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Apstrakt

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.