Intertek MSG
The Wilton Centre
Redcar
TS10 4RF 
United Kingdom

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Polymers and Plastics

Analytical Testing Services

 

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Oxidative Induction Times (OIT) by DSC

The OIT test characterises the thermo-oxidative stability of polyolefins, particularly polyethylene.

In the Oxidation Induction Times test (OIT), as carried out in a differential scanning calorimeter (DSC), is used to predict thermo-oxidative performance of a material.

Samples are heated up under a nitrogen atmosphere, typically to 200C. Oxygen is then introduced to the sample cell, and the length of time before the onset of degradation, as seen by the iniation of an endothermic process in the DSC trace, is measured.  

OIT is a sensitive measure of the level of anti-oxidative additives within the polymer.

Thermal analysis:

to see how Intertek can help your organization with Oxidative Induction Times (OIT) by DSC.