Bulgarian Institute for Standardization
Standards – always a step ahead
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Projects and standards

To find easily the necessary information, use the different options for advanced search below, e.g. search by technical committee; by keyword in Bulgarian/English; by reference and others.

Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators (ISO 389-3:2016)

60.60 Standard published

ТК-82 more

Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994)

90.93 Standard confirmed

ТК-82 more

Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz (ISO 389-5:2006)

90.93 Standard confirmed

ТК-82 more

Acoustics - Reference zero for the calibration of audiometric equipment - Part 6: Reference threshold of hearing for test signals of short duration (ISO 389-6:2007)

60.60 Standard published

ТК-82 more

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2019)

60.60 Standard published

ТК-82 more

Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones (ISO 389-8:2004)

90.93 Standard confirmed

ТК-82 more

Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009)

60.60 Standard published

ТК-82 more

Acoustics - Statistical distribution of hearing thresholds related to age and gender (ISO 7029:2017)

60.60 Standard published

ТК-82 more

Acoustics - Audiometric test methods - Part 1: Pure-tone air and bone conduction audiometry (ISO 8253-1:2010)

60.60 Standard published

ТК-82 more

Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure-tone and narrow-band test signals (ISO 8253-2:2009)

60.60 Standard published

ТК-82 more

Acoustics - Audiometric test methods - Part 3: Speech audiometry (ISO 8253-3:2022)

60.60 Standard published

ТК-82 more

Acoustics - Determination of occupational noise exposure - Engineering method (ISO 9612:2009)

60.60 Standard published

ТК-82 more

Acoustics — Description, measurement and assessment of environmental noise — Part 1: Basic quantities and assessment procedures

90.93 Standard confirmed

ТК-82 more

Acoustics — Description, measurement and assessment of environmental noise — Part 2: Determination of sound pressure levels

90.60 Close of review

ТК-82 more

Acoustics — Estimation of noise-induced hearing loss

90.92 Standard to be revised

ТК-82 more

Electroacoustics - Specifications for personal sound exposure meters

30.60 Close of voting/ comment period

TC 29 more

Electroacoustics - Specifications for personal sound exposure meters

60.60 Standard published

TC 29 more

Amendment 2 - Electroacoustics - Specifications for personal sound exposure meters

60.60 Standard published

TC 29 more