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ČSN - Czech national standards - Page 123

Standards ČSN - Czech national standards - Page 123

ČSN is a protected designation of Czech national technical standards.

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Preview ČSN EN ISO 4869-1 1.3.2020 Preview of the standard
ČSN EN ISO 4869-1 (011640)

Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation

Standard published on 1.3.2020

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Preview ČSN EN ISO 4869-2 1.3.2020 Preview of the standard
ČSN EN ISO 4869-2 (011640)

Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn

Standard published on 1.3.2020

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Preview ČSN EN ISO 4869-3 1.1.2008
ČSN EN ISO 4869-3 (011640)

Acoustics - Hearing protectors - Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture (ISO 4869-3:2007)

Standard published on 1.1.2008

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Preview ČSN EN ISO 4869-4 1.5.2001 Preview of the standard
ČSN EN ISO 4869-4 (011640)

Acoustics - Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs

Standard published on 1.5.2001

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Preview ČSN EN ISO 21388 1.1.2022 Preview of the standard
ČSN EN ISO 21388 (011640) WITHDRAWN

Acoustics - Hearing aid fitting management (HAFM)

WITHDRAWN published on 1.1.2022

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Preview ČSN ISO 4869-1 1.1.1993 Preview of the standard
ČSN ISO 4869-1 (011640) WITHDRAWN

Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of attenuation

WITHDRAWN published on 1.1.1993

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Preview ČSN EN ISO 4869-1 1.8.2019 Preview of the standard
ČSN EN ISO 4869-1 (011640) WITHDRAWN

Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation

WITHDRAWN published on 1.8.2019

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Preview ČSN ISO 4869-2 1.2.1996 Preview of the standard
ČSN ISO 4869-2 (011640) WITHDRAWN

Acoustics. Hearing protectors. Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn

WITHDRAWN published on 1.2.1996

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Preview ČSN EN ISO 4869-2 1.8.2019 Preview of the standard
ČSN EN ISO 4869-2 (011640) WITHDRAWN

Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn

WITHDRAWN published on 1.8.2019

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Preview ČSN EN 24869-3 1.6.1996 Preview of the standard
ČSN EN 24869-3 (011640) WITHDRAWN

Acoustics. Hearing protectors. Part 3: Simplified method for the measurement of insertion loss of ear muff type protectors for quality inspection purposes (ISO/TR 4869-3:1989)

WITHDRAWN published on 1.6.1996

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