E.S.C.R. Apparatus - Testers ( As par ASTM D-1693 )
E.S.C.R. Apparatus is used for determination of susceptibility of ethylene plastics to environmental stress cracking when subjected to certain conditions. Bent specimens of the plastics each having a controlled imperfection on the surface are exposed to the action of a surface active agent, oils or detergent. The proportion of the total number of specimens that crack in a given time is observed.
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