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NF EN 50057:1992被替代

出版:Association Francaise de Normalisation

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基本信息
標(biāo)準(zhǔn)編號: NF EN 50057:1992
發(fā)布時(shí)間:1992/7/1 0:00:00
標(biāo)準(zhǔn)類別:Standard
出版單位:Association Francaise de Normalisation
標(biāo)準(zhǔn)頁數(shù):9
標(biāo)準(zhǔn)簡介

Describes performance requirements for Group II (as defined in European Standard EN 50054) portable, transportable and fixed apparatus for detection and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be used in potentially explosive atmospheres, other than mines susceptible to firedamp (ie. Group I). General requirements and test methods applicable to apparatus covered by this European Standard are given in EN 50054. Limited to apparatus intended for detection and measurement of combustible gas or vapour concentrations with air up to 100% lower explosive limit (LEL).

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INDICE DE CLASSEMENT: C23557

替代本標(biāo)準(zhǔn)的新標(biāo)準(zhǔn)

NF EN 61779-4:2005

等同采用的國際標(biāo)準(zhǔn)

SS EN 50057 Ed. 2 (1998) - Identical

UNE EN 50057:1999 - Identical

I.S. EN 50057:1998 - Identical

BS EN 50057:1999 - Identical

DIN EN 50057 (1999-07) - Identical