专家解读视频
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 detection and measurement of volume ratios of methane in air from 0% (V/V) up to 100% (V/V).
INDICE DE CLASSEMENT: C23556
SS EN 50056 Ed. 2 (1998) - Identical
UNE EN 50056:1999 - Identical
I.S. EN 50056:1998 - Identical
BS EN 50056:1999 - Identical
DIN EN 50056 (1999-07) - Identical
