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ČSN - Czech national standards
Page 135
ČSN EN ISO 4869-1 (01/03/2020)
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation
Available languages: Czech
Available design: Print design
from 13.90 EUR more info
ČSN EN ISO 21388-2 (01/11/2024)
Acoustics - Hearing Aid Fitting Management - Part 2: Teleservices as part of hearing aid fitting management (tHAFM)
Available languages: English
Available design: Print design
from 13.90 EUR more info
ČSN EN ISO 4869-2 (01/03/2020)
Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
Available languages: Czech
Available design: Print design
from 13.90 EUR more info
ČSN EN ISO 4869-3 (01/01/2008)
Acoustics - Hearing protectors - Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture (ISO 4869-3:2007)
Available languages: English
Available design: Print design
from 13.90 EUR more info
ČSN EN ISO 4869-4 (01/05/2001)
Acoustics - Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs
Available languages: Czech
Available design: Print design
from 7.70 EUR more info
ČSN EN ISO 21388 (01/01/2022) Withdrawn
Acoustics - Hearing aid fitting management (HAFM)
Available design: Print design
from 22.30 EUR more info
ČSN ISO 4869-1 (01/01/1993) Withdrawn
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of attenuation
Available design: Print design
from 7.70 EUR more info
ČSN EN ISO 4869-1 (01/08/2019) Withdrawn
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation
Available design: Print design
from 14.40 EUR more info
ČSN ISO 4869-2 (01/02/1996) Withdrawn
Acoustics. Hearing protectors. Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
Available design: Print design
from 9.20 EUR more info
ČSN EN ISO 4869-2 (01/08/2019) Withdrawn
Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
Available design: Print design
from 14.40 EUR more info
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