Fire detection and alarm systems — Part 22: Smoke-detection equipment for ducts

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

05-09-2017

Publisher

International Organization for Standardization

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 7240-22:2007

ISO 7240-16:2007	Fire detection and alarm systems — Part 16: Sound system control and indicating equipment
12/30276319 DC : 0	BS ISO 7240-14 - FIRE DETECTION AND FIRE ALARM SYSTEMS - PART 14: DESIGN, INSTALLATION, COMMISSIONING AND SERVICE OF FIRE DETECTION AND FIRE ALARM SYSTEMS IN AND AROUND BUILDINGS
12/30249483 DC : 0	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

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