NEN EN 45544-1 : 2015

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 General requirements
    4.1 Mechanical construction
    4.2 Indicating devices
    4.3 Fault signals
    4.4 Adjustments
    4.5 Battery-powered apparatus and mains powered
          apparatus with integral battery back-up
    4.6 Labelling and marking
          4.6.1 General
          4.6.2 Identification of the gas to be detected
    4.7 Instruction manual
5 Test conditions
    5.1 General
    5.2 Sequence of tests
    5.3 Preparation of apparatus before each particular
          test
    5.4 Mask for calibration and test
    5.5 Environmental standard conditions
    5.6 Test gas
    5.7 Supply voltage
    5.8 Stabilization time
    5.9 Multi-sensor apparatus
    5.10 Orientation
    5.11 Calibration
6 Test methods
    6.1 Unpowered storage
    6.2 Measurement of deviations
          6.2.1 Zero variation, overall uncertainty and
                  calibration curve for EN 45544-2 apparatus
          6.2.2 Overall uncertainty for EN 45544-3
                  apparatus
    6.3 Mechanical tests
          6.3.1 Vibration
          6.3.2 Drop test
    6.4 Environmental tests
          6.4.1 Temperature
          6.4.2 Pressure
          6.4.3 Humidity
          6.4.4 Air speed
    6.5 Performance tests
          6.5.1 Audible alarm (for personal, portable
                  and transportable apparatus)
          6.5.2 Alarm set point(s)
          6.5.3 Alarm response time (applicable to all
                  alarm instruments)
          6.5.4 Flow failure warning
          6.5.5 Warm-up time
          6.5.6 Time of response
          6.5.7 Time of recovery
          6.5.8 Addition of sampling probe (portable
                  and transportable apparatus only)
          6.5.9 Field verification kit
          6.5.10 Gas concentrations above the upper
                  limit of the measuring range
          6.5.11 Extended operation in standard test gas
          6.5.12 Orientation tests
                  6.5.12.1 Personal and portable apparatus
                  6.5.12.2 Fixed and transportable
                            apparatus
    6.6 Electrical tests
          6.6.1 Battery capacity for battery-powered
                  personal and portable continuous duty
                  apparatus
          6.6.2 Mains power supply
          6.6.3 Electrical fault signal
          6.6.4 Electromagnetic compatibility
          6.6.5 Time-weighted average (TWA) function
                  (not applicable to apparatus according
                  to EN 45544-3)
    6.7 Drift tests
          6.7.1 Personal, portable, transportable
                  and fixed apparatus
          6.7.2 Spot reading apparatus
7 Test report
Annex A (normative) Standard test gas concentrators

Defines general requirements and test methods for the determination of the performance characteristics of personal, portable, transportable and fixed, continuous duty electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours in workplace atmospheres.