BS 2740:1969-简易烟雾报警器和报警计量装置规范-国家数字标准馆

现行 BS 2740:1969

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Specification for simple smoke alarms and alarm metering devices 简易烟雾报警器和报警计量装置规范

发布日期： 1969-12-31

当烟囱排放的烟雾超过选定的林格曼阴影时，用于发出警报的仪表的结构和操作要求。交叉引用:BS 2741BS 2742附录1至BS 2742:1969BS 2811

Requirements for the construction and operation of instruments designed to give an alarm when smoke emission from a chimney exceeds a chosen Ringelmann shade.Cross References:BS 2741BS 2742Addendum No. 1 to BS 2742:1969BS 2811

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发布单位或类别：英国-英国标准学会

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BS 5446-4-2020

Fire detection and fire alarm devices for dwellings-Specification for multi-sensor fire alarms using any combination of smoke, heat and carbon monoxide sensors
住宅火灾探测和火灾报警装置

2020-11-27