DIN EN 13508-2:2011 Investigation and assessment of drain and sewer systems outside buildings - Part 2: Visual inspection coding system; German version EN 13508-2:2003+A1:2011
EN 476:1997 General Requirements for Components Used in Discharge Pipes, Drains and Sewers for Gravity Systems
EN 752:2008 Drain and sewer systems outside buildings
ISO 8601 Data elements and interchange formats - Information interchange - Representation of dates and times
DIN EN 13508-2:2011 history
2011DIN EN 13508-2:2011-08 Investigation and assessment of drain and sewer systems outside buildings - Part 2: Visual inspection coding system; German version EN 13508-2:2003+A1:2011
2011DIN EN 13508-2:2011 Investigation and assessment of drain and sewer systems outside buildings - Part 2: Visual inspection coding system; German version EN 13508-2:2003+A1:2011