NEN EN 45544-3 : 2015

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Test conditions
6 Performance requirements
      6.1 Standard requirements
      6.2 Unpowered storage
      6.3 Measurement of deviations
      6.4 Mechanical tests
             6.4.1 Vibration
             6.4.2 Droptest
      6.5 Environmental tests
             6.5.1 Temperature
             6.5.2 Pressure
             6.5.3 Humidity
             6.5.4 Air speed
      6.6 Performance tests
             6.6.1 Audible alarm (for personal, portable
                      and transportable apparatus)
             6.6.2 Alarm set point(s)
             6.6.3 Alarm response time (applicable to all
                      alarm instruments)
             6.6.4 Flow failure warnings
             6.6.5 Warm-up time
             6.6.6 Time of response
             6.6.7 Time of recovery
             6.6.8 Addition of sampling probe (portable
                      and transportable apparatus only)
             6.6.9 Field verification kit
             6.6.10 Gas concentrations above the upper
                      limit of the measuring range
             6.6.11 Extended operation in standard test gas
             6.6.12 Orientation tests
      6.7 Electrical tests
             6.7.1 Battery capacity
             6.7.2 Mains power supply
             6.7.3 Electrical fault signal
             6.7.4 Electromagnetic compatibility
             6.7.5 Time-weighted average (TWA) function
      6.8 Drift tests
             6.8.1 Personal, portable, transportable and
                      fixed apparatus
             6.8.2 Spot reading apparatus

Defines the performance requirements for electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours in workplace atmospheres. Pertains to apparatus used for general gas detection.