UL Standard for Safety General-Purpose Signaling Devices and Systems - Section / Paragraph Reference: 72.2.1 Subject: Audibility Test using two reflecting planes (Edition 2: December 23@ 2008)
标准号:UL 2017 CRD-2010
标准名称: 通用信令设备和系统的UL安全标准. 节/段落参考: 72.2.1主题: 使用两个反射面测试听力 (第二版: 2008年12月23日)
英文名称:UL Standard for Safety General-Purpose Signaling Devices and Systems - Section / Paragraph Reference: 72.2.1 Subject: Audibility Test using two reflecting planes (Edition 2: December 23@ 2008)
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):M30