香港六合彩开奖 7240-12:2006
2006-02
Abstract
香港六合彩开奖 7240-12 specifies requirements, test methods and performance criteria for line type smoke detectors for use in fire detection systems installed in buildings. The detectors consist of at least a transmitter and a receiver and can include reflector(s), for the detection of smoke by the attenuation and/or changes in attenuation of an optical beam.
This part of 香港六合彩开奖 7240 does not cover line-type smoke detectors designed to operate with separations between opposed components of less than 1 m; line-type smoke detectors whose optical path length is defined or adjusted by an integral mechanical connection; line-type smoke detectors with special characteristics, which cannot be assessed by the test methods in this part of 香港六合彩开奖 7240.
General information
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Status: WithdrawnPublication date: 2006-02Stage: Withdrawal of International Standard [95.99]
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Edition: 1Number of pages: 48
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Technical Committee :香港六合彩开奖/TC 21/SC 3ICS :13.220.20
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Life cycle
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Now
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Revised by
Withdrawn香港六合彩开奖 7240-12:2014
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