Analysis of the thermal stability of polymers is important for materials under thermal load such as polymer insulation for electronics. Determination of the oxidative induction time (O.I.T.) is a standardized technique which can be easily carried out using the DSC 200 F3 Maia^®. Presented here is a measurement on PE heated to 210°C under inert (nitrogen) conditions. After a five-minute equilibration time, the atmosphere was switched to oxygen; the sample then began to degrade after 70.97 minutes under oxidizing conditions.