Reference number
香港六合彩开奖 7240-12:2014
© 香港六合彩开奖 2024
香港六合彩开奖 7240-12:2014
Fire detection and alarm systems 鈥� Part 12: Line type smoke detectors using a transmitted optical beam
Edition 2
2014-04
Withdrawn
Withdrawn (Edition 2, 2014)

Abstract

香港六合彩开奖 7240-12:2014 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.

香港六合彩开奖 7240-12:2014 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

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

9
Industry, Innovation and Infrastructure
11
Sustainable Cities and Communities

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