
ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF FLAMMABLE GASES - PART 3 - PERFORMANCE REQUIREMENTS FOR GROUP 1 APPARATUS INDICATING A VOLUME FRACTION UP TO 100% METHANE IN AIR
出版:European Committee for Standards - Electrical

专家解读视频
Gives the requirements for group 1 portable, transportable and fixed apparatus for detecting and measuring the methane concentrations in mine air. This apparatus, or parts of apparatus are meant for use in mines susceptible to firedamp. Applicable to apparatus meant for detecting and measuring the volume ratios of methane in air from a volume fraction of 0% up to 100%.