| 1. | Electrical apparatus for explosive gas atmospheres - intrinsically safe systems 爆炸性气体环境用电气设备.本安型系统 |
| 2. | Electrical apparatus for explosive gas atmospheres - part 25 : intrinsically safe systems 爆炸性气体环境用电气设备.第25部分:自身安全系统 |
| 3. | Electrical apparatus for explosive gas atmospheres - part 25 : intrinsically safe systems 爆炸性气体环境用电气设备.第25部分:本质安全型系统 |
| 4. | Electrical apparatus for potentially explosive atmospheres - group i . intrinsically safe systems - construction and testing 潜在爆炸性环境中使用的电气装置.组i .本征安全系统.建造和试验 |
| 5. | Electrical apparatus for explosive gas atmospheres - part 25 : intrinsically safe systems iec 60079 - 25 : 2003 ; german version en 60079 - 25 : 2004 爆炸性气体环境用电气设备.第25部分:本征安全型系统 |
| 6. | Electrical apparatus for potentially explosive atmospheres - group i - intrinsically safe systems - part 1 : construction and testing ; german version en 50394 - 1 : 2004 潜在爆炸性环境中使用的电气装置. i组.本征安全型系统 |