Fire detection and alarm systems. Smoke point detectors using scattered light, transmitted light or ionization. (ISO/DIS 7240-7)
火灾探测和报警系统 使用散射光、透射光或电离的烟点探测器 (ISO/DIS 7240-7)
Cross References:EN 54ISO/209-1IEC 68-2IEC 68-2-1IEC 68-2-6IEC 68-2-27IEC 68-2-42IEC 68-2-56IEC 801IEC 801-2IEC 801-3IEC 801-4All current amendments available at time of purchase are included with the purchase of this document.