DIN 1988-3 Supplement 1
DIN 1988-3 Supplement 1
Codes of practice for drinking water installations (TRWI); examples for calculation; DVGW code of practiceAmendment by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/1988
Amendment by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/1988