DIN EN 1717-2011 防止回流导致的污染的装置的一般要求和便携水安装的污染防止;德文版本EN 1717-2000;DVGW技术规则
Protection against pollution of potable water installations and general requirements of devices to prevent pollution by backflow; German version EN 1717:2000; Technical rule of the DVGW
This standard deals with the means to be used to prevent the pollution of potable water inside premises and the general requirements of protection devices to avoid pollution by backflow.
The hygiene protection specifications of this standard are applicable to all the standards for systems or appliances connected to the private supply system for water intended for human consumption.