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i~ <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br />1 <br /> <br /> <br /> <br /> <br />L <br />1 <br />1 <br /> <br />L~ <br />REQUIRED PROPERTIES OF VERY LOW <br />DENSTTY POLYETHYLENE (VLDPE) <br /> Typical Property Values <br /> <br />Property Test <br />Designation <br />30 mil <br />40 mil <br />60 mil <br />3. Modulus of ASTM D 882 17000 17000 17000 <br />Elasticity <br />(secant <br />modulus; <br />poundsfsquare <br />inch) <br /> <br />Tear Strength (pounds) ASTM D 1004 15 20 30 <br /> Die C <br />Puncture Resistance FTMS 101 C 45 55 80 <br />(pounds) 2065 <br />Low Temperature ASTM D 746 <-94°F <-94°F <-94°F <br />Brittleness <br />Dimensional Stability ASTM D 1204 +3 +3 +~3 <br />(% change max.) 212°F, 15 <br /> min. <br />Resistance to Soil ASTM D 3083 <br />Burial (% change Type IV <br />max, in orig. value) Specimen at <br /> 20 inches/ <br /> minute <br />A. Ultimate <br />Tensile 1096 10% 1046 <br />Strength <br />S. Ultimate <br />Elongation 10°~ 1096 1096 <br />Environmental Stress ASTM D 1693 2000 2000 2000 <br />Crack (hours) Condition C <br /> {modified NSF <br /> 54) <br />-9- <br />