NF P41-211-1-2:2007 Building works - Unplasticized polyvinyl chloride piping installation : cold water under pressure - Part 1-2 : general criteria for selection of materials.
2007NF P41-211-1-1:2007 Building works - Unplasticized polyvinyl chloride piping installation : cold water under pressure - Part 1-1 : technical specifications.
2000NF P41-211/A1:2000 DTU 60.31 - Building works - Unplasticized polyvinyl chloride piping installation - Cold water under pressure - Technical specifications.
1993NF P41-211:1993 DTU 60.31 - Building works - Unplasticized polyvinyl chloride piping installation - Cold water under pressure - Technical specifications.