Overview The Oxidative Induction Time (OIT) test is used to evaluate the oxidative stability and stabilization level of polyolefin materials by Differential Scanning Calorimetry (DSC). The method is applicable to fully stabilized and compounded polyolefin materials. During the test, the specimen is first heated in an inert nitrogen atmosphere. After reaching the specified test temperature…
Introduction Crosslinked polyethylene, commonly referred to as PE-X, is widely used in pressure piping systems, hot-water installations, underfloor heating, and other demanding applications where improved thermal and long-term mechanical performance are required. One of the key quality parameters for PE-X is the degree of crosslinking. The international standard ISO 10147:2004 specifies a method for assessing…
4 PrincipleA pipe of specified length is placed in a liquid bath or air oven at a specified temperature for a specified time .A marked length of this portion of pipe is measured, under identical conditions, before and after heating. The reversion is calculated as a percentage of the change in length in relation to…
