| 1. | Outdoor or indoor installation and operation
室外或室内安装及操作 |
| 2. | Letter boxes others than those with large opening - indoor installations
大开口除外的信箱.室内安装 |
| 3. | Calculation of maximum external diameter of cables for indoor installations
户内装置用电缆最大外径的计算 |
| 4. | Letter boxes with reduced capacity and with large opening for indoor installation - requirements and testing
室内安装用小容量大开口信箱.要求和试验 |
| 5. | Lubricants for gas valves in indoor installation , gas distribution , and gas transportation pipe lines
室内设备煤气分配和煤气输送管道的煤气阀用润滑剂 |
| 6. | If the indoor installation area is subject to freezing temperatures , the water piping must be protected by insulation
如果室内安装区域可能出现冰冻温度，则水管线必须加装保温层保护。 |
| 7. | Letter boxes with large opening recommended for dwelling places and covered by order 1802 of june 29 , 1979 - indoor installations
推荐给住宅区使用的并包含在1979年6月29日的1802指令中的大开口式信箱.室内安装 |
| 8. | For indoor installations , it is important that the valve be easily accessible to facilitate testing and servicing . do not install in a concealed location
对于室内安装，重要的是要使得阀门易于进行测试和维修。不要安装在一个隐蔽的位置。 |
