Central drinking water supply - Guidelines regarding requirements for drinking water, planning, construction, operation and maintenance of supply plants
DIN 1988-100-2011DIN 1988-200-2012DIN 1988-300-2012DIN 1988-500-2011DIN 1988-600-2010DIN 2001-1-2007DIN 2001-2 (2009-04)DIN 2001-3 (2015-12)DIN EN 806-1 (2001-12)DIN EN 806-2 (2005-06)DIN EN 806-3 (2006-07)DIN EN 806-4 (2010-06)DIN EN 806-5 (2012-04)DVGW W 101 (2006-06)DVGW W 102 (2002-04)DVGW W 123 (2001-09)DVGW W 125 (2004-04)DVGW W 127 (2006-03)DVGW W 202 (2010-03)DVGW W 300-1 (2014-10)DVGW W 300-2 (2014-10)DVGW W 300-3 (2014-10)DVGW W 400-1 (2015-02)DVGW W 400-2 (2004-