Heat distortion temperatures of plastic
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Lee P. Witnauer; William E. Palm
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Article
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1959
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John Wiley and Sons
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English
โ 128 KB
## Heat Distortion Temperatures of Plastic Compositions bg Means of a Torsional Test Using Small Quantities of Material The standard A.S.T.M. method of test for heat distortion temperature (HDT) of plastics1 requires a relatively large size specimen, 5 X 0.5 X 0.125 to 0.5 in., approximately 15 g