
Fire detection and alarm systems Part 19: Design, installation, commissioning and service of sound systems for emergency purposes
出版:International Organization for Standardization

專家解讀視頻
基本信息
標準編號: ISO/DIS 7240-19
標準類別:Draft
出版單位:International Organization for Standardization
標準頁數(shù):0
標準簡介
60.00 (2007) [25/07/2007]50.20 (2007) [23/05/2007]50.00 (MAR 2007) [15/03/2007]50.00 (FEB 2007) [26/02/2007]40.99 (2006) [23/11/2006]40.60 (2006) [12/07/2006]40.20 (2006) [06/02/2006]40.00 (2006) [24/01/2006]