NEN-EN 50056/AA
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for group I apparatus indicating up to 100% (V/V) methane in air
inactive
| Organization: | NEN |
| Publication Date: | 23 May 1996 |
| Status: | inactive |
| ICS Code (Alarm and warning systems): | 13.320 |
scope:
Specifies performance requirements for Group I (as defined in European Standard EN 50054) portable, transportable and fixed apparatus for the detection and measurement of methane concentrations in mine air. The apparatus, or parts thereof, may be installed or used in mines susceptible to firedamp. The general requirements and test methods covered by this European Standard are specified in European Standard EN 50054. This European Standard is restricted to apparatus intended for the detection and measurement of volume ratios of methane in air from 0% (v/v) up to 100% (v/v).
Document History
August 1, 1998
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 100% (V/V) methane in air
Specifies performance requirements for Group I (as defined in European Standard EN 50054) portable, transportable and fixed apparatus for the detection and measurement of methane concentrations in...
NEN-EN 50056/AA
May 23, 1996
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for group I apparatus indicating up to 100% (V/V) methane in air
Specifies performance requirements for Group I (as defined in European Standard EN 50054) portable, transportable and fixed apparatus for the detection and measurement of methane concentrations in...
August 1, 1995
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for group I apparatus indicating up to 100% (V/V) methane in air
A description is not available for this item.
July 1, 1994
Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for group I apparatus indicating up to 100% (V/V) methane in air
This European Standard specifies performance requirements for Group I (as defined in European Standard EN 50054) portable, transportable and fixed apparatus for the detection and measurement of...