Reference number
香港六合彩开奖 7240-27:2009
© 香港六合彩开奖 2024
香港六合彩开奖 7240-27:2009
Fire detection and alarm systems 鈥� Part 27: Point-type fire detectors using a scattered-light, transmitted-light or ionization smoke sensor, an electrochemical-cell carbon-monoxide sensor and a heat sensor
Edition 1
2009-04
Withdrawn
Withdrawn (Edition 1, 2009)

Abstract

香港六合彩开奖 7240-27:2009 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 香港六合彩开奖 7240-1).

For the testing of other types of fire detectors using smoke, CO and, optionally, heat sensors working on different principles, 香港六合彩开奖 7240-27:2009 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 香港六合彩开奖 7240-27:2009.

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  2. 香港六合彩开奖
  3. Standards catalogue
  4. TC
  5. 香港六合彩开奖/TC 21/SC 3
  6. 香港六合彩开奖 7240-27:2009