Oxidation induction time (OIT) measurement
The oxidation induction time (OIT) is a measure of a material's resistance to thermo-oxidative degradation. OIT testing is performed according to the ISO 11357-1 standard using a differential scanning calorimeter (DSC).
In the test, the sample is heated under a nitrogen atmosphere to the desired temperature, typically 100 °C to 200 °C. Oxygen is then introduced while the temperature is kept constant isothermally. The time until the material begins to degrade is recorded, and this is called the oxidation induction time.
Testing is often used to assess the performance of antioxidants added to polymeric materials.
More information about the method:
Differential scanning calorimetry (DSC)- Suitable sample matrices
- Polymers, plastics, rubbers and elastomers
- Required sample quantity
- 1 g
- Typical turnaround time
- 2 weeks after receiving the samples
- Available quality systems
- Accredited test method
- Device types
- Standard
- Method expert
Polymers and plastics
Thermal testingPrice
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