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Vapor Transmission Data <br /> Tested according to ASTM D814-55 Inverted Cup Method <br /> Perhaps a more meaningful test is determination of the diffusion rate of the liquid through the membrane. The <br /> vapor transmission rate of Style 8130 XR-5®to various chemicals was determined by the ASTM D814-55 inverted <br /> cup method. All tests were run at room temperature and results are shown in the table. <br /> 8130 XR-5 Black <br /> Chemical g/hr/m2 <br /> Water 0.11 <br /> #2 Diesel Fuel 0.03 <br /> Jet A 0.11 <br /> Kerosene 0.15 <br /> Hi-Test Gas 1.78 <br /> Ohio Crude Oil 0.03 <br /> Low-Test Gas 5.25 <br /> Raw Linseed Oil 0.01 <br /> Ethyl Alcohol 0.23 <br /> Naphtha 0.33 <br /> Perchlorethylene 38.58 <br /> Hydraulic Fluid 0.006 <br /> 100% Phosphoric Acid 7.78 <br /> 50% Phosphoric Acid 0.43 <br /> Ethanol(E-96) 0.65 <br /> Transformer Oil 0.005 <br /> Isopropyl Alcohol 0.44 <br /> JP4(E-96) 0.81 <br /> JP8(E-96) 0.42 <br /> Fuel B(E-96) 6.28 <br /> Fuel C(E-96) 7.87 <br /> Note: The tabulated values are measured Vapor Transmission Rates(VTR). Normal soil testing methods to determine permeability are <br /> impractical for synthetic membranes.An "equivalent hydraulic" permeability coefficient can be calculated but is not a direct units con- <br /> version.Contact Seaman Corporation for additional technical information. <br /> Seam Strength <br /> Style 8130 XR-5 Black Seam Strength After Immersion <br /> Two pieces of Style 8130 were heat sealed together (seam width 1 inch overlap)and formed into a bag.Various <br /> oils and chemicals were placed in the bags so that the seam area was entirely covered. After 28 days at room <br /> temperature, the chemicals were removed and one inch strips were cut across the seam and the breaking <br /> strength immediately determined. Results are listed below. <br /> Chemical Seam Strength <br /> None 340 Lbs. Fabric Break-No Seam Failure <br /> Kerosene 355 Lbs. Fabric Break-No Seam Failure <br /> Ohio Crude Oil 320 Lbs. Fabric Break-No Seam Failure <br /> Hydraulic Fluid-Petroleum Based 385 Lbs. Fabric Break-No Seam Failure <br /> Toluene 0 Lbs.Adhesion Failure <br /> Naphtha 380 Lbs. Fabric Break-No Seam Failure <br /> Perchloroethylene 390 Lbs. Fabric Break-No Seam Failure <br /> Even though 1-inch overlap seams are used in the tests to study the accelerated effects, it is recommended that <br /> XR-5 be used with a 2-inch nominal overlap seam in actual application. In some cases where temperatures exceed <br /> 160°F and the application demands extremely high seam load, it may be necessary to use a wider width seam. <br /> 10 <br />