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1 <br />May 30, 1991 <br /> <br /> <br />GEOMEMBRANE CERTIFICATE OF ANALYSIS <br />Customer: Serrot Corp. <br />Project: Battle Mountian Gold <br />Order Number: 149-03 <br />NSc <br />Number of Rolls Shipped: 18 <br />Number of Rolls Tested: 9 <br />Nominal Thickness: 40 mil <br />' The geomembrane referenced above was tested for thickness, tensile properties, carbon <br />black dispersion and dimensional stability. Thickness was tested according to ASTM D <br />1593, paragraph 9.1.3. Teasile properties were tested according to ASTM D 638 using a <br />' Tyne l~ ~1!imhbell specimen, a strain rate of two wcfies per minute and grip movement for <br />strain determinations. Carbon black dispersioo slides were prepared according to ASTM <br />' D 3015 and rated according to the ASTM D 2663 classification chart when viewed under <br />100X magnification. Dimensional stability was determined according to ASTM D 1204 at <br />100°C for one hour. The average test results aze reported below, <br />1 <br />~I <br /> <br />1 <br /> <br /> <br /> <br />1 <br /> <br />1 <br />Roll Number <br />Thickness (mils) <br />Stress at Break (psi) <br />Strain at Break (percent) <br />Carbon Black Dispersion <br />Dimensional Stability <br />V4L-4912-12202-2 V4L-4912-L2204-2 <br /> 41.0 40.8 <br />MD 4490 4580 <br />TD 4430 4770 <br />MD 1024 1028 <br />TD 1080 1116 <br /> Al Al <br />MD -1.2 ~ -1.0 <br />TD -0.6 -0.6 <br />Michael L Ross <br />Asst. Quality Control Manager <br />V4Lr4912-I?305-2 <br />40.7 <br />4670 <br />4720 <br />1048 <br />1124 <br />Al <br />-1.5 <br />-0.4 <br /> <br />