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1.1 This European Standard specifies performance requirements for Group I (as defined in European Standard EN 50 054) portable, transportable and fixed apparatus for the detection and measurement of methane concentrations in mine air. The apparatus, or parts thereof, are intended for use in mines susceptible to firedamps and shall meet the General requirements and test methods specified in European Standard EN 50054. NOTE. The use of Group I apparatus may not be permitted without the additional and prior approval of the relevant authority in mines under its jurisdiction, see Note 1 under clause 1.1 of European Standard EN 50054. 1.2 This European Standard is restricted to apparatus intended for the detection and measurement of methane volume ratios in air from 1 % (v/v) up to but not exceeding 5 % (v/v).
Reģistrācijas numurs (WIID)
57352
Darbības sfēra
1.1 This European Standard specifies performance requirements for Group I (as defined in European Standard EN 50 054) portable, transportable and fixed apparatus for the detection and measurement of methane concentrations in mine air. The apparatus, or parts thereof, are intended for use in mines susceptible to firedamps and shall meet the General requirements and test methods specified in European Standard EN 50054. NOTE. The use of Group I apparatus may not be permitted without the additional and prior approval of the relevant authority in mines under its jurisdiction, see Note 1 under clause 1.1 of European Standard EN 50054. 1.2 This European Standard is restricted to apparatus intended for the detection and measurement of methane volume ratios in air from 1 % (v/v) up to but not exceeding 5 % (v/v).
