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Standard
DIN EN 806-2 , Publication date: 2005-06Specification for installations inside buildings conveying water for human consumption - Part 2: Design; German version EN 806-2:2005 |
Standard
DIN EN 1717 [PLEASE NOTE: DOCUMENT WITHDRAWN] , Publication date: 2001-05Protection against pollution of potable water installations and general requirements of devices to prevent pollution by backflow - Technical rule of the DVGW; German version EN 1717:2000 |