ÖNORM EN ISO 4869-1:2019-05

Действует

Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018)

Ссылочные документы

Действует

Acoustics -- Audiometric test methods -- Part 2: Sound field audiometry with pure-tone and narrow-band test signals — 24 стр.

Действует

Scales and sizes for plotting frequency characteristics and polar diagrams — 28 стр.

Действует

Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications — 88 стр.

Заменен

Acoustics - Hearing protectors - Part 1: Subjective method for measurement of sound attenuation (ISO 4869-1:1990)

Заменен

Acoustics - Hearing protectors - Part 1: Subjective method for measurement of sound attenuation (ISO 4869-1:1990)