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Property <br />Test Method <br />Requirements <br />Base Resin <br />Specific Gravity (g/cm <br />ASTM D792 or ASTM D1505 <br />0.935- 0.941 <br />Melt Index <br />ASTM D1238, Condition E <br />s 1.0 g /10 min <br />The Manufacturer of HDPE products is required to meet GRI GM17 and GRI GM13 <br />standards. <br />D. The geosynthetic sheet shall be comprised of a minimum ninety -six <br />(96) percent pure polyethylene. The remaining portion shall be made up of <br />materials necessary for the performance of the liner (such as carbon black, <br />anti - oxidants, etc.) The geosynthetic rolls shall meet the following <br />Specifications: <br />1. Contain a maximum of two (2) percent by weight of additives, fillers, <br />or extenders (not including carbon black). <br />2. Contain between two (2) percent and three (3) percent carbon black <br />for ultra - violet light resistance. <br />3. The surface of the geosynthetic shall not have striations, roughness <br />(except texture as specified), pinholes, or bubbles and shall be free <br />of holes, blisters, undispersed raw materials, or any contamination <br />by foreign matter. Project Manager and Design Engineer may <br />request additional testing in order to support such acceptance. All <br />such testing shall be done at the sole expense of the Contractor. <br />4. The geosynthetic rolls shall have the following properties: <br />Rio Grande Silver Tailings Evaporation Pond <br />TABLE 02620 -1 <br />HDPE GEOSYNTHETIC RESIN PROPERTIES <br />02620 -8 Geosynthetic Liner <br />August2011 02620 <br />