NF P41-213-1-1:2007 Building works - Unplasticized polyvinyl chloride piping installation - Waste water drainage - Part 1-1 : technical specifications.
2007NF P41-213-1-1:2007 Building works - Unplasticized polyvinyl chloride piping installation - Waste water drainage - Part 1-1 : technical specifications.
0000 NF P41-213/A1:2000
1993NF P41-213:1993 DTU 60.33 - Building works - Unplasticized polyvinyl chloride piping installations - Waste water drainage - Technical specifications.