EN 50055 : 1998被替代
ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE GASES - PERFORMANCE REQUIREMENTS FOR GROUP 1 APPARATUS INDICATING UP TO 5 % (V/V) METHANE IN AIR
出版：European Committee for Standards - Electrical
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基本信息
标准编号： EN 50055 : 1998
标准类别：Standard
出版单位：European Committee for Standards - Electrical
标准页数：0
标准简介
Describes performance requirements for Group I (as defined in European Standard EN 50054) portable, transportable and fixed apparatus for detection and measurement of methane concentrations in mine air. The apparatus, or parts thereof, are designed for use in mines susceptible to firedamp and comply with requirements and test methods specified in European Standard EN 50054. Limited to apparatus intended for detection and measurement of methane volume ratios in air from 0% (V/V) up to but not exceeding 5% (V/V).
