SIS SS-EN 50 055-1992 电气设备可燃气体的检测和测量．可检测甲烷在空气中含量达5%（v/v）的第一组仪器的性能要求

标准号：SIS SS-EN 50 055-1992
中文标准名称：电气设备可燃气体的检测和测量．可检测甲烷在空气中含量达5%（v/v）的**组仪器的性能要求
英文标准名称：Electrical apparatusfor the detection and measurement ofcombustible gases - Performance requirements for Group I apparatus indicating upto5% (v/v) methane in air
发布日期：1992/1/29 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This European Standard specifies performance requirements for Group I (as defined in European Standard EN 50 054) portable, transportable ar.d 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 StandardEN 50 054.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 EuropeanStandard EN 50 054.1.2 This European Standard is restricted to apparatus intended for i.he detection and measurement of methane volurae ratios in air from 0 % (v/v) up to but not exceeding 5 % (v/v).