NF P84-128-2*NF EN 1849-2:2019 Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part 2 : plastics and rubber sheets for roof waterproofing
2019NF P84-128-2*NF EN 1849-2:2019 Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part 2 : plastics and rubber sheets for roof waterproofing