EN 61779-4 : 2000被替代
ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF FLAMMABLE GASES - PART 4: PERFORMANCE REQUIREMENTS FOR GROUP 2 APPARATUS INDICATING A VOLUME FRACTION UP TO 100% LOWER EXPLOSIVE LIMIT
出版：European Committee for Standards - Electrical
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基本信息
标准编号： EN 61779-4 : 2000
标准类别：Standard
出版单位：European Committee for Standards - Electrical
标准页数：0
标准简介
Gives the requirements for group II, portable, transportable and fixed apparatus for detecting and measuring combustible gas or vapour concentrations with air. The apparatus, or parts of apparatus, may be used or installed in potentially explosive atmospheres, except mines that are susceptible to firedamp. Applicable to apparatus meant for detecting and measuring combustible gas or vapour concentrations with air up to 100% lower explosive limit (LEL).
