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11/15/1995 07: 38 6045304466 DEC_K_.ING PAGE 15 <br /> Table Y. Tett resift for*Dec-K-Ing Roofteal"Roofing and Waterproofing Membrane(coned) <br /> Test _ Requirement Result <br /> Resistance to Membrane shall pass low- No cracks <br /> Accelerated temperature flexibility <br /> Weathering when bent over a <br /> (cont'd) mandrel,6.4 mm in diameter, <br /> at -30"C <br /> Permeability (g/m2) Max, water vapour trans- 2.8 <br /> mission:4.0 in 24 h <br /> Water Absorption Mase of water absorbed:<2% 1.3% <br /> (after one week in <br /> water at 50°C) Elongation at break : MD SW% <br /> a 90% of elongation at XD 461% <br /> break "as received" <br /> Tensile strength: MD 13.0 MI's <br /> not less than that XD 11.6M[Pa <br /> of the material <br /> "as received" <br /> Dimensional <br /> Change after <br /> Street Relaxation <br /> without Shall not show a change of 0.1% <br /> loading more than 5%in any direction <br /> loaded Shall not show a change in MD 0.1% <br /> dimension of more than 0.5% XD 0.04% <br /> In the MD and 0.2% in the XD <br /> Cone Cone shall not penetrate with Penetration at <br /> Penetration less than a 30-N force 135 N <br /> Table 2. Results of Abrasion Test <br /> Since,as a deck surface,this PVC membeane is exposed to pedestrian traffic,a Taber abrasion test with <br /> H-19 wheels and a 1-kg surcharge for 5000 revolutions was also performed, <br /> Sample Conditions Weight Loss (g) Depth of Wear (mm) <br /> As received 0.31 0.19 <br /> After 600-h <br /> Accelerated Weathering 0.32 0.20 <br /> -739- <br />