DIN Standards Committee Water Practice
Protection against pollution of water intended for human consumption in potable water installations and general requirements for devices to prevent pollution by backflow
Abstract
This document specifies an analysing methodology for protecting potable water in potable water installations within and outside buildings but within premises from the risk of pollution by backflow of non-potable water and gives recommendations on the design, risk analysis, backflow prevention devices and their installation methods (see Figure 1 and Figure 2). This methodology is also intended to be used outside premises for all water systems connected to a potable water distribution system up to and including the point of use (see Figure 3). The product standards for the specific backflow prevention devices or arrangements are intended to be used in conjunction with this document. For the development of new devices or systems, this document is intended to be used as a reference to establish the necessary level of backflow protection.
Begin
2021-10-01
WI
00164672
Planned document number
EN 1717
Responsible national committee
NA 119-07-07-01 AK - Revision DIN 1988-100
Responsible european committee
CEN/TC 164/WG 14 - Valves and fitting for buildings and devices to prevent pollution by backflow
draft standard
Protection against pollution of water intended for human consumption in potable water installations and general requirements for devices to prevent pollution by backflow
2023-06
Order from DIN Media
Protection against pollution of water intended for human consumption in potable water installations and general requirements for devices to prevent pollution by backflow
2024-08
Order from DIN Media
