| 1. | Technical specification for prevention of backflow pollution in water supply system
给水系统防回流污染技术规程 |
| 2. | Devices to prevent pollution by backflow of potable water - unrestricted air gap - family a , type a
防饮用水回流污染设备.无限制气隙. a类a型气隙 |
| 3. | . a b devices to prevent pollution by backflow of potable water - air gap with non - circular overflow unrstricted - family a , type b
防饮用水回流污染装置.带不循环溢流口的 |
| 4. | . a b devices to prevent pollution by backflow of potable water - air gap with non - circular overflow unrestricted - family a , type b
防饮用水回流污染设备.非循环溢流气隙 |
| 5. | Devices to prevent pollution by backflow of potable water - automatic diverter - family h , type c ; german version en 14506 : 2005
防饮用水回流污染的装置.自动排水道. c型h系列 |
| 6. | Devices to prevent pollution by backflow of potable water - unrestricted air gap - family a - type a ; german version en 13076 : 2003
防饮用水回流污染装置.无限制的气隙. a类a型 |
| 7. | Devices to prevent pollution by backflow of potable water - air gap with circular overflow restricted - family a , type f
防饮用水回流污染的装置.带圆形溢流口的气隙. f型a系列 |
| 8. | Devices to prevent pollution by backflow of potable water - air gap with injector - family a ; type d ; german version en 13079 : 2003
防饮用水回流污染的装置.有喷嘴的气隙. a系列d型 |
| 9. | Devices to prevent pollution by backflow of potable water - in - line anti - vacuum valves dn 8 to dn 80 - family d , type a
防饮用水回流污染的装置.直通反真空阀dn 8至dn 80 . a型d系列 |
| 10. | Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow
饮用水设施污染防治和防止回流污染装置的一般要求 |
