20.60 Close of comment period Nov 1, 1991
CEN/TC 254 Flexible sheets for waterproofing
This European Standard specifies requirements for thermoplastic and elastomeric sheets for waterproofing. The main addressed characteristics will be: Water tightness, gas permeability, mechanical properties like the resistance to perforation or the impact resistance and the durability of those characteristics against chemical or biological agents and/or weathering.
20.60 Close of comment period
Nov 1, 1991