NF P84-124-1*NF EN 12311-1:1999 Flexible sheets for waterproofing - Part 1 : bitumen sheets for roof waterproofing - Determination of tensile properties
1999NF P84-124-1*NF EN 12311-1:1999 Flexible sheets for waterproofing - Part 1 : bitumen sheets for roof waterproofing - Determination of tensile properties