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Fuel Compatibility - Long Term Immersion <br /> Test: Samples of 8130 XR-5® Black were immersed in Diesel Fuel, JP-4 Jet Fuel, Crude Oil, Kerosene, <br /> and Naphtha for 6 1/2 years. <br /> The samples were then taken out of the test chemicals, blotted and dried for 24 hours.The samples <br /> were observed for blistering, swelling,stiffening, cracking or delamination of the coating from the fiber. <br /> Results: It was found in all cases that the 8130 XR-5, after immersion for six years, maintained its strength <br /> and there was no evidence of blistering, swelling, stiffening, cracking or delamination. <br /> The strip tensile strength, or breaking strength, of the samples was measured after six years of <br /> immersion and the following are the results. <br /> XR-5 BREAKING STRENGTH <br /> Load, lbs/in ASTM D 751, Procedure B <br /> 450— 430 <br /> 400 405 .410•. 410 400 //J/ . 400 <br /> 350– ' <br /> 300– <br /> 250– <br /> 200– ••••••••••• <br /> ........... :•:••••••••••••:•,:•••••:•:•:-:•:•:•:•:.: <br /> ••••••••••• <br /> 150 <br /> 00- <br /> 150– <br /> 100 <br /> Control Crude Oil JP-4 Diesel Kerosene Naphtha <br /> Jet Fuel Fuel <br /> XR-3 Chemical Resistance Statement (Summary) <br /> XR-3® is recommended for moderate chemical resistant applications such as stormwater and municipal <br /> wastewater and is not recommended for prolonged contact with pure solutions. XR-3 PW® membranes are <br /> recommended only for contact with drinking water and are resistant to low levels of chlorine found in <br /> drinking water. XR-5 has a broad range of chemical resistance which is detailed in this section. <br /> 12 <br />