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NBN EN 24869-1:1995現(xiàn)行

Acoustics - Hearing Protectors - Part 1: Subjective Method For The Measurement Of Sound Attenuation

出版：Belgian Standards

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基本信息
標(biāo)準(zhǔn)編號(hào)： NBN EN 24869-1:1995
發(fā)布時(shí)間：1995/2/1 0:00:00
標(biāo)準(zhǔn)類別：Standard
出版單位：Belgian Standards
標(biāo)準(zhǔn)頁數(shù)：7
標(biāo)準(zhǔn)簡(jiǎn)介

Describes a method for measuring sound attenuation of hearing protectors at the threshold of hearing, to yield values close to the maximum attenuation which are not normally attained under field conditions. This has been adopted because the attenuation values can then be consistently reproduced. This method provides data which are collected at low sound pressure levels but which are also representative of attenuation values at higher levels. An exception is amplitude-sensitive hearing protectors for sound pressure levels above the point at which their level-dependent characteristics become effective. At this level the method specified is inapplicable.

等同采用的國(guó)際標(biāo)準(zhǔn)

UNE EN 24869-1:1994 - Identical

UNI EN 24869-1:1993 - Identical

NF EN 24869-1:1993 - Identical

I.S. EN 24869-1:1993 - Identical

BS EN 24869-1 - Identical

ONORM EN 24869-1:1993 - Identical

BS EN 24869-1:1993 - Identical

IEC 60645-1 Ed. 2.0 - Identical

IEC 60651 Ed. 1.2 - Identical

IEC 60804 Ed. 2.0 - Identical

SS EN 24869-1 Ed. 1 (1993) - Identical