20.60 Close of comment period Feb 1, 1988
CEN/TC 117 Thermoplastic and elastomeric roofing and sealing sheeting
To specify a method for the determination of the impact resistance, i.e. the resistance to perforation by a free falling mass of thermoplastic and elastomeric roofing and sealing sheets.
CEN/TC 117 N 42
20.60 Close of comment period
Feb 1, 1988