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ISO 7240-27 (Complete Document)
Revision / Edition: 1ST Chg: Date: April 1, 2009
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FIRE DETECTION AND ALARM SYSTEMS - PART 27: POINT-TYPE FIRE DETECTORS USING A SCATTERED-LIGHT, TRANSMITTED-LIGHT OR IONIZATIONSMOKE SENSOR, AN ELECTROCHEMICAL-CELL CARBON-MONOXIDE SENSOR AND AHEAT SENSOR
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This part of ISO 7240 specifies requirements, test methods and performance criteria for multi-sensor point-type fire detectors that incorporate an optical or ionization smoke sensor, an electro-chemical cell for sensing carbon monoxide (CO) and, optionally, one or more heat sensors, for use in fire detection and alarm systems installed in buildings (see ISO 7240-1).

For the testing of other types of fire detectors using smoke, CO and, optionally, heat sensors working on different principles, this part of ISO 7240 can be used only for guidance. Fire detectors using smoke, CO and, optionally, heat sensors which have special characteristics and which have been developed for specific risks are not covered by this part of ISO 7240.

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