DIN EN 1931:2001-03 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties; German version EN 1931:2000
2001DIN EN 1931:2001-03 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties; German version EN 1931:2000
2001DIN EN 1931:2001 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties; German version EN 1931:2000
2000DIN EN 1928:2000 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of watertightness; German version EN 1928:2000
0000 DIN EN 1931:1995
1986DIN 16726:1986 Plastic roofing felt and waterproofing sheet; testing