BS EN 14624:2020
$167.15
Performance of portable locating leak detectors and of fixed gas detectors for all refrigerants
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 40 |
1.1 General
This document specifies the requirements for portable locating leak detectors and fixed gas detectors for all refrigerants.
Locating detectors used in factories for manufacturing processes are not included in the Scope of EN 14624.
1.2 Product application
This document applies to different applications and environments such as plant and machine rooms, production rooms, cold rooms, supermarkets, occupied spaces like offices and hotels.
1.3 Product performance
This document specifies minimum requirements for sensitivity, operating range, response time, environmental conditions and cross sensitivity from interference gases.
1.4 Product installation
This document gives guidance of suitable technology, location of detection points, interconnection with secondary equipment (e.g. initiation of mechanical ventilation, personnel warning, and equipment shutdown).
1.5 Service and maintenance
This document gives guidance for service and maintenance: Sensors and mechanical equipment have a limited operating life and require regular performance verification to ensure conformity.
1.1 General
This document specifies the requirements for portable locating leak detectors and fixed gas detectors for all refrigerants.
Locating detectors used in factories for manufacturing processes are not included in the Scope of EN 14624.
1.2 Product application
This document applies to different applications and environments such as plant and machine rooms, production rooms, cold rooms, supermarkets, occupied spaces like offices and hotels.
1.3 Product performance
This document specifies minimum requirements for sensitivity, operating range, response time, environmental conditions and cross sensitivity from interference gases.
1.4 Product installation
This document gives guidance of suitable technology, location of detection points, interconnection with secondary equipment (e.g. initiation of mechanical ventilation, personnel warning, and equipment shutdown).
1.5 Service and maintenance
This document gives guidance for service and maintenance: Sensors and mechanical equipment have a limited operating life and require regular performance verification to ensure conformity.
1.1 General
This document specifies the requirements for portable locating leak detectors and fixed gas detectors for all refrigerants.
Locating detectors used in factories for manufacturing processes are not included in the Scope of EN 14624.
1.2 Product application
This document applies to different applications and environments such as plant and machine rooms, production rooms, cold rooms, supermarkets, occupied spaces like offices and hotels.
1.3 Product performance
This document specifies minimum requirements for sensitivity, operating range, response time, environmental conditions and cross sensitivity from interference gases.
1.4 Product installation
This document gives guidance of suitable technology, location of detection points, interconnection with secondary equipment (e.g. initiation of mechanical ventilation, personnel warning, and equipment shutdown).
1.5 Service and maintenance
This document gives guidance for service and maintenance: Sensors and mechanical equipment have a limited operating life and require regular performance verification to ensure conformity.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 8 | 1 Scope 2 Normative references |
| 9 | 3 Terms and definitions |
| 12 | 4 Symbols and abbreviations 5 General requirements for all portable locating leak detectors and fixed gas detectors — Refrigerant gas type (informative) |
| 13 | 6 Specific requirements for portable locating leak detectors 6.1 Detection limits 6.1.1 General 6.1.2 Static detection limit – the leak detector probe is stationary 6.1.3 Dynamic detection limit – the leak detector probe is moving 6.1.4 Dynamic detection limit in a contaminated environment 6.2 Response time 6.3 Recovery time 6.4 Calibration frequency and procedure 7 Test apparatus for portable leak detectors 7.1 General |
| 14 | 7.2 Calibration leaks 7.3 Measuring distance 7.4 Apparatus no. 1: detector probe stationary at the orifice of calibration leak 7.5 Apparatus no. 2: detector probe moved with defined speed and distance in front of a calibration leak |
| 16 | 7.6 Apparatus no. 3a: Chamber with monitored concentration |
| 17 | 8 Performance tests of portable leak detectors 8.1 General 8.2 Test no. 1: Static detection limits 8.3 Test no. 2: Dynamic detection limits |
| 18 | 8.4 Test no. 3 Dynamic detection limit in a contaminated environment 8.5 Test no. 4: Response time 8.6 Test no. 5: Recovery time |
| 19 | 9 Portable leak detector characteristics, reporting of test results and requirements 9.1 Reporting of test result 9.2 Minimum product requirements |
| 20 | 10 Service and maintenance — Portable locating leak detectors — Periodic check and calibration 11 Technical specification and product information — Portable locating leak detectors 12 Specific requirements for fixed gas detectors 12.1 General |
| 21 | 12.2 Suitability 12.3 Function of gas detector 12.4 Ambient conditions, temperature and humidity |
| 22 | 12.5 Typical measuring ranges and thresholds |
| 23 | 12.6 Accuracy and performance 12.7 Response time |
| 24 | 13 Test apparatus for fixed gas detectors 13.1 General 13.2 Apparatus no. 3b: Chamber with monitored concentration |
| 25 | 13.3 Apparatus no. 4: Calibration gas with specific concentration |
| 26 | 13.4 Apparatus no. 5: Calibration gas for aspirated systems 14 Performance tests of gas detector 14.1 General 14.2 Test conditions — Temperature and humidity |
| 27 | 14.3 Test methods 14.3.1 General 14.3.2 Test of accuracy and thresholds 14.3.3 Test of response time 15 Fixed gas detector characteristics, reporting of test results — Reporting of test results 16 Service and maintenance — Fixed gas detectors 16.1 Expected sensor lifecycle 16.2 Periodic check and calibration |
| 28 | 17 Technical specification and product information – Fixed gas detectors |
| 29 | Annex A (informative)Conversion factors of leakage rate units |
| 30 | Annex B (informative)Correlation between test gas concentration and leakage rate B.1 EXAMPLE 1a: Conversion of a concentration increase in a hood to a total leakage volume flow rate (pV-throughput) B.2 EXAMPLE 1b: Concentration increase due to a small leak in a voluminous room |
| 31 | B.3 EXAMPLE 2: Conversion of a leakage rate (pV-throughput) into a mass flow rate |
| 32 | B.4 EXAMPLE 3:Calculation of the concentrations of tracer gas to be detected in front of a leak with specified leakage rate |
| 34 | Annex C (informative)Guidelines for application of Fixed Gas Detectors |
| 35 | Annex D (informative)Calculation of gas concentration from kg/m3 to ppm |
| 36 | Annex E (informative)Selectivity, cross interference and potential contaminants |
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