DIN EN 60079-28 Bb.1-2014 爆炸性气体环境. 第28部分: 采用光辐射的设备和传输系统的保护; 补充件1. 解释活页1(IEC 60079-28-2006/ISH1-2014)
Explosive atmospheres - Part 28: Protection of equipment and transmission systems using optical radiation; Supplement 1: Interpretation Sheet 1 (IEC 60079-28:2006/ISH1:2014)