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NOTICES <br />Technical Information - By using any Technical Information contained herein, Recipient agrees that said Technical Information is given by CPChem for convenience only, without any warranty or guarantee of any kind, and is <br />accepted and used at your sole risk. Recipients are encouraged to verify independently any such information to their reasonab le satisfaction. As used in this paragraph, "Technical Information" includes any technical advice, <br />recommendations, testing, or analysis, including, without limitation, information as it may relate to the selection of a product for a specific use and application. <br /> <br />Page 2 <br />Filename: Agru Oven and QUV Exposure for HP-OIT Testing_2021_111221.docx <br /> <br />The following oven aging and UV exposure test methods were conducted in accordance with the GRI-GM13 (HDPE) and GRI-GM17 (LLDPE) <br />requirements: <br /> <br />Test Name Exposure Conditions Test Method <br />Oven Aging 90 days in an oven at 85 °C ASTM D5721 <br />UV <br />Exposure <br />1600 UV irradiance hours. Cycle: 20 hours UVA-340 at 75 °C followed by 4 hours <br />dark with condensation at 60 °C. Irradiance was 0.78 W/m2 at wavelength 340 nm. <br />Note: This implies a total UV chamber residence time of 1920 hours, e.g., 1600 hours of irradiance <br />and 320 hours of dark/condensation. <br />ASTM D7238 <br />HP-OIT 150 °C in an oxygen atmosphere at 500 psi ASTM D5885 <br /> <br /> <br /> <br />Oven Aging Results: <br />Sample Initial <br />HP-OIT <br />(min) <br />HP-OIT after <br />90 days of <br />oven aging. <br />(min) <br />% HP-OIT <br />Retained <br />after 90 days <br />of oven aging. <br />GRI-GM13 and GRI-GM17 <br />minimum % HP-OIT <br />requirements after 90 days <br />of oven aging. <br />K307 Lot # PND821550, <br />Agru Roll # GTC0078250016, <br />black sheet, smooth, <br />nominal 0.057” thick <br />1313 1174 89.4% GRI-GM13: <br />% HP-OIT: 80% minimum <br />7104 Lot # DNE810980, <br />Agru Roll # GTA0077190117, <br />black sheet, textured, <br />nominal 0.055” thick <br />973 802 82.4% GRI-GM17: <br />% HP-OIT: 60% minimum <br /> <br /> <br />Continued on Page 3 - - - <br /> <br />