ISO 7240-22:2017
Current
The latest, up-to-date edition.
Fire detection and alarm systems — Part 22: Smoke-detection equipment for ducts
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English
05-09-2017
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ISO 7240-22:2017 specifies requirements, test methods and performance criteria for smoke-detection equipment for ducts (SDED) for use in fire detection and alarm systems installed in buildings (see ISO 7240‑1).
The SDED samples the air from a duct and detects smoke in the sample.
NOTE 1 A common method of operation is to use differential pressure arising from airflow in the duct.
The SDED can use smoke detectors complying with ISO 7240‑7 or other detectors complying with tests specified in ISO 7240-22:2017.
A common application for SDED is to detect visible smoke, for which detectors using scattered light or transmitted light can be more suitable. However, requirements for detectors using ionization are also included in ISO 7240-22:2017 for use in applications where detection of less visible fire aerosols is desired.
For the testing of other types of smoke detectors or smoke detectors working on different principles, ISO 7240-22:2017 can be used for guidance. Smoke detectors with special characteristics, developed for specific risks, are not covered.
NOTE 2 Certain types of detectors contain radioactive materials. The national requirements for radiation protection differ from country to country and are not specified in ISO 7240-22:2017.
| DevelopmentNote |
Supersedes ISO/DIS 7240-22. (09/2017)
|
| DocumentType |
Standard
|
| Pages |
44
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| ISO 7240-16:2007 | Fire detection and alarm systems — Part 16: Sound system control and indicating equipment |
| 12/30249483 DC | BS ISO 7240-14. Fire detection and alarm systems. Part 14. Design, installation, commissioning and service of fire detection and fire alarm systems in and around buildings |
| ISO 209:2007 | Aluminium and aluminium alloys — Chemical composition |
| IEC 60068-1:2013 | Environmental testing - Part 1: General and guidance |
| IEC 60068-2-27:2008 | Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock |
| IEC 62599-2:2010 | Alarm systems - Part 2: Electromagnetic compatibility - Immunity requirements for components of fire and security alarm systems |
| IEC 60068-2-2:2007 | Environmental testing - Part 2-2: Tests - Test B: Dry heat |
| IEC 60068-2-42:2003 | Environmental testing - Part 2-42: Tests - Test Kc: Sulphur dioxide test for contacts and connections |
| IEC 60068-2-1:2007 | Environmental testing - Part 2-1: Tests - Test A: Cold |
| ISO 7240-1:2014 | Fire detection and alarm systems — Part 1: General and definitions |
| ISO 7240-7:2011 | Fire detection and alarm systems Part 7: Point-type smoke detectors using scattered light, transmitted light or ionization |
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