BSI BS EN ISO 389-2 Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 2: Reference Equivalent Threshold Sound Pressure Levels for Pure Tones and Insert Earphones - AMD 9427: March 15, 1997
Список продуктов
Данный раздел/документ содержится в продуктах:
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- IEC 60318-3 Electroacoustics - Simulators of Human Head and Ear - Part 3: Acoustic Coupler for the Calibration of Supra-Aural Earphones Used in Audiometry - Edition 1.0; Cancels and Replaces IEC 60303: 1970
- 17
- IEC 60318-3 Electroacoustics - Simulators of Human Head and Ear - Part 3: Acoustic Coupler for the Calibration of Supra-Aural Earphones Used in Audiometry - Edition 1.0; Cancels and Replaces IEC 60303: 1970
- 17.140
- IEC 60318-3 Electroacoustics - Simulators of Human Head and Ear - Part 3: Acoustic Coupler for the Calibration of Supra-Aural Earphones Used in Audiometry - Edition 1.0; Cancels and Replaces IEC 60303: 1970
- 17.140.50
- SNV SN EN ISO 8253-3 Acoustics - Audiometric test methods - Part 3: Speech audiometry
- 13
- ISO 389-4 Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 4: Reference Levels for Narrow-Band Masking Noise - First Edition
- Картотека зарубежных и международных стандартов
BSI BS EN ISO 389-2 Acoustics - Reference Zero for the Calibration of Audiometric Equipment - Part 2: Reference Equivalent Threshold Sound Pressure Levels for Pure Tones and Insert Earphones - AMD 9427: March 15, 1997
