NF ISO 11346, T46-082 (07/2023)

This document specifies the principles and methods for estimating the thermal endurance of rubbers based on the results of exposure to elevated temperatures for extended periods. Two methods are specified (see the introduction): — one using the Arrhenius equation; — the other using the WLF equation. This document bases the estimation of thermal endurance only on the change in selected properties resulting from durations of exposure to elevated temperatures. For thermal aging, the various properties of rubbers vary at different rates and therefore rubbers can only be compared using the same properties.
(Automatic translation from French)