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2. ASTM D1003-61, Standard test method for haze and luminous transmittance of transparent plastics,1979
3. 1970 Methods of Testing Plastics-Part 5: Method 515A Haze of Film,1970
4. The radiation transmission and heat conserving properties of glass and some plastic films;Trickett;J. Agric. Eng. Res.,1958
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