E.S.C.R. Apparatus is used for determination of suceptibility 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 goven times is observed.
|Bending cum transfering device||1No.|