The standard settles the responsibilities for planning, construction and operation of drinking water installations, it defines important terms and gives the abbreviations and graphic symbols to use in drawings and plans.
DIN 1988-1:1988 history
2001DIN EN 806-1:2001 Specifications for installations inside buildings conveying water for human consumption - Part 1: General; German version EN 806-1:2001 + A1:2001
1988DIN 1988-1:1988 Drinking water supply systems; general (DVGW code of practice)