BS EN 50055:1991被替代
Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 5 % (V/V) methane in air
出版：British Standards Institution
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基本信息
标准编号： BS EN 50055:1991
发布时间：1991/12/20 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：14
标准简介
Performance requirements for portable and fixed apparatus for the detection and measurement of methane concentrations in mine air.
标准备注
© British Standards Institution 2013
Amendment notes:
AMD 9356 published 15 March 1997
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