Test Standards STANDARD Requirements Results, 2000 TNL Membrane Thickness (mm) DIN 16938 +10% 2.00 Tensile Strength DIN 16938 >15N/mm2 longitudinal transversal >17.90 N/mm2 >17.40 N/mm2 Elongation DIN 16938 DIN 16730 >200% longitudinal transversal >400both direction Thermal Stability DIN 16938 6hr/80c  <2% longitudinal transversal <1.0% both direction Tear Strength (N) DIN 16730 80 N >110N Thermal Ageing DIN 16938 7d/80 change of tensile strength & elongation<±20% folding in cold at -20c: No cracks <1% both direction -30c no cracks Slit Pressure Resistance SIA 280/4 1h /5bar (0.5N/mm2) tight passed Thermal Ageing  SIA 280/7 70d/70c mass decrease <2% Change of elongation mass decrease <0.5%Change of elongation <2% Both Direction Roots Resistance SIA 280/10 no root penetration ingrown roots must die off passed Combustibility SIA 280/11 class V/smoke class2 Passed Water Vapor Defusion Resistance DIN16730 Less than 30,000 Less than 21,000 Water Absorption SIA 280/12  8 months storage in water <±6% folding in  cold at-20c no cracks passed Compression Strength SIA 280/13 48h/7N/mm2 tight passed Puncture resistance DIN 16730 drop hammer 500gms,  no leak on falling from 750mms passed Seam Strength SIA 280/15  No peeling or sliding of welded seam passed Cold bend DIN 16730 No cracks at -20c No cracks at -30c Resistance to Algea & Rot DIN 16730 High resistance High Resistance Chemical Resistance DIN 16938 28/lime milk, change of tensile strength longitudinal /transversal %change of elongation <±20% longitudinal/transversal % Resistance to 10% Calcium Hydroxide, 7 days no change in color, 0.5% change in weight, change in tensile & elongation <3%     28d/salt water, change of tensile strength longitudinal/transversal change of elongation<±20% longitudinal /transversal % Resistance of 10% sodium chloride, slight colour change, change in tensile strength & elongation <3%     28d/sulfurous acid, change of tensile strength longitudinal/transversal % change of elongation<±20% longitudinal /transversal %  3% sulfuric acid, slight change in colour change in tensile strength & elongation <3%     Folding in cold at -20c, no cracks in all cases Pass     Soil Resistance Pass