HY4140-II Full Notch Creep Tester is used to determine the stress cracking resistance of polyethylene materials in any environment. A test specimen in the form of a square-section bar with coplanar notches in each face at the center, is subjected to a static tensile load in a temperature-controlled environment. The geometry of the specimen is such that plane strain conditions are obtained and brittle failure occurs under appropriate tensile load and temperature conditions. The time for this brittle failure to occur after loading is recorded. This machine conforms to ISO 16770, ISO 899, ISO 3501, GB/T 15820, GB/T 11546, etc.