BS EN 45544-1:2015 – TC:2020 Edition
$258.95
Tracked Changes. Workplace atmospheres. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours – General requirements and test methods
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 124 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 78 | 1 Scope 2 Normative references |
| 79 | 3 Terms and definitions |
| 86 | 4 General requirements 4.1 Introduction 4.2 Construction 4.2.1 General 4.2.2 Indicating devices 4.2.2.1 General |
| 87 | 4.2.2.2 Dead bands |
| 88 | 4.2.3 Alarm output functions 4.3 Fault signals 4.4 Adjustments |
| 89 | 4.5 Battery-powered apparatus 4.6 Gas detection transmitter for use with separate control units 4.7 Separate control units for use with gas detection transmitters 4.8 Apparatus using software and/or digital technologies 4.9 Labelling and marking 4.9.1 General |
| 90 | 4.9.2 Identification of the gas to be detected 4.10 Instruction manual |
| 93 | 5 Test methods 5.1 General requirements for tests 5.2 Samples and sequence of tests 5.2.1 Test samples 5.2.2 Sequence 5.2.3 Gas detection transmitters 5.2.4 Separate control units |
| 94 | 5.2.5 Test of compliance with general requirements 5.2.6 Apparatus with selectable range 5.2.7 Preparation of apparatus before each particular test |
| 95 | 5.2.8 Mask for calibration and test 5.3 Normal conditions for test 5.3.1 General |
| 96 | 5.3.2 Test gas(es) 5.3.3 Flow rate for test gases 5.3.4 Power supply 5.3.5 Temperature 5.3.6 Pressure 5.3.7 Humidity |
| 97 | 5.3.8 Stabilization 5.3.9 Orientation 5.3.10 Communications options 5.3.11 Gas detection apparatus as part of systems 5.4 Tests 5.4.1 General |
| 98 | 5.4.2 Unpowered storage 5.4.3 Measurement of deviations 5.4.3.1 Zero uncertainty, relative expanded uncertainty and calibration curve for EN 45544-2 apparatus 5.4.3.2 Calibration curve for EN 45544-3 apparatus |
| 99 | 5.4.4 Mechanical tests 5.4.4.1 Vibration |
| 100 | 5.4.4.2 Drop test 5.4.5 Environmental tests 5.4.5.1 Temperature |
| 101 | 5.4.5.2 Pressure 5.4.5.3 Humidity 5.4.5.4 Air velocity |
| 102 | 5.4.6 Performance tests 5.4.6.1 Alarm set point(s) |
| 103 | 5.4.6.2 Time to alarm or alarm reading 5.4.6.3 Flow rate 5.4.6.4 Warm-up time |
| 104 | 5.4.6.5 Time of response 5.4.6.6 Time of recovery 5.4.6.7 Addition of sampling probe (portable and transportable apparatus only) 5.4.6.8 Field calibration kit |
| 105 | 5.4.6.9 Gas concentrations above the full scale indication 5.4.6.10 Extended operation in test gas 5.4.6.11 Orientation tests |
| 106 | 5.4.7 Electrical tests 5.4.7.1 Battery capacity for battery-powered apparatus 5.4.7.2 Power supply variations 5.4.7.3 Electromagnetic compatibility |
| 107 | 5.4.7.4 Time-weighted average (TWA) function 5.4.8 Stability 5.4.9 Verification of software and digital components 6 Uncertainty of measurement and lower limit of measurement 6.1 General |
| 108 | 6.2 Method of calculation of uncertainty of measurement 6.2.1 General |
| 109 | 6.2.2 Sources of uncertainty 6.2.2.1 General 6.2.2.2 Measurement of deviations (from 5.4.3) |
| 110 | 6.2.2.3 Temperature (from 5.4.5.1) 6.2.2.4 Pressure (from 5.4.5.2) 6.2.2.5 Humidity (from 5.4.5.3) |
| 111 | 6.2.2.6 Air velocity (from 5.4.5.4) 6.2.2.7 Flow rate (from 5.4.6.3) |
| 112 | 6.2.2.8 Sampling probe (from 5.4.6.7) 6.2.2.9 Field calibration kit (from 5.4.6.8) 6.2.2.10 Extended operation in test gas (from 5.4.6.10) |
| 113 | 6.2.2.11 Orientation (from 5.4.6.11) 6.2.2.12 Battery capacity (from 5.4.7.1) 6.2.2.13 Power supply variations (from 5.4.7.2) |
| 114 | 6.2.2.14 Stability (from 5.4.8) 6.2.3 Calculation of relative expanded uncertainty 6.3 Method of calculation of lower limit of measurement |
| 116 | 7 Test report |
