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ChevronVergil H.Rhodes,PE,CPlasT-Tech Svc&App Dev Engineer,Geomembranes <br /> Highways 60&123,Bartlesville Research and Technology Center,Room 103 PTC <br /> Phillips <br /> Bartlesville,OK 74003 <br /> Chem!(#/Company Nip ■0918-977-4229■orhodevh@cpchem.com ■EiFaz:918-977-7599 ■www.gRchem.com <br /> October 31,2017 <br /> Filename: Agru Oven and QUV Exposure Testing_103117.pdf <br /> Nathan Ivy-Corporate Quality Control/Technical Manager <br /> Agru America, Inc. <br /> 800 Rockmead#122 <br /> Kingwood,TX 77339 <br /> 281-358-4741 <br /> Dear Mr. Ivy: <br /> Please recall your request for testing of oven-exposed and UV-exposed geomembrane samples <br /> produced primarily from Marlex®7104 LLDPE and Marlex"K307 HDPE. Agru blended other <br /> components with each of these polyethylenes to produce the geomembrane samples for testing. <br /> Smooth geomembrane samples have been received from Agru and test results are reported below. The <br /> samples were tested for HP-OIT in their as-received condition,and were also tested after oven and UV <br /> exposures of 90 days and 1600 hours of irradiance,respectively,in accordance with GRI-GM 13 and <br /> GRI-GM 17. <br /> The following geomembrane sheet samples were received from Agru in mid-June 2017 and were reported <br /> to be primarily composed of each of the Chevron Phillips Chemical Company grades in the description <br /> below: <br /> • K307 Lot#HHB620720,Agru Roll#G17D000534,black sheet, smooth,nominal 0.040"thick. <br /> • 7104 Lot#CFJ810540,Agru Roll#G1513434055,black sheet, smooth,nominal 0.040"thick. <br /> Exposure and testing conditions,along with the test results are tabulated on the next page. GM-13 and <br /> GM-17 require minimum%HP-OIT retention after a 90-day oven exposure and after a 1600 hour UV <br /> irradiance exposure. These test results indicate these GM-13 and GM-17 minimum%HP-OIT retentions <br /> were exceeded by these Agru-supplied K307 and 7104 sheet samples,respectively. <br /> If you have any questions,please feel free to contact me(contact information given above). <br /> Sincerely, <br /> Vergil Rhodes <br /> Polyethylene Technical Service and Applications Development,Geomembrane <br /> NOTICES <br /> Technical Information-By using any Technical Information contained herein,Recipient agrees that said Technical Information is given by CPChem for <br /> convenience only,without any warranty or guarantee of any kind,and is accepted and used at your sole risk.Recipients are encouraged to verify independently <br /> any such information to their reasonable satisfaction.As used in this paragraph,"Technical Information"includes any technical advice,recommendations, <br /> testing,or analysis,including,without limitation,information as it may relate to the selection of a product for a specific use and application. <br />