本文件规定了安装在建筑物中的火灾探测系统中使用的线型烟雾探测器的要求、测试方法和性能标准。探测器至少包括发射器和接收器，可以包括反射器，用于通过光束的衰减和/或衰减变化来检测烟雾。 本文件不适用于: —？线型烟雾探测器设计为在相对部件之间的间隔小于1°的情况下工作m； —？通过整体机械连接定义或调整光程长度的线型烟雾探测器； —？具有特殊特性的线型烟雾探测器，无法通过本文件中的测试方法进行评估。 注意术语“光学”用于描述接收器响应的发射器产生的电磁频谱部分；这并不局限于可见波长。

This document 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 document is not applicable to: —？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 document. NOTE？The term “optical” is used to describe that part of the electromagnetic spectrum produced by the transmitter to which the receiver is responsive; this is not restricted to visible wavelengths.