1. Add caution statements on pressure differential scanning calorimetry for thermal stability application in the standard. Generally, thermal stability of a substance is the stability to resist chemical degradation under high temperature operating conditions, so it is a property of a substance, not interaction with others, such as a gas. Pressure differential scanning calorimetry typically is used to study the reactivity between a liquid or solid sample with certain gas which stays in the large headspace of the instrument (e.g., oxidation induction time of a sample with oxygen or air). However, with this significantly large headspace compared to loaded sample size (e.g., TA 25P, 100ml headspace for ~10mg sample), pressure differential scanning calorimetry for degradation evaluation always gives false negative result due to the following reasons: 1, liquid sample will vaporize during temperature ramping and result in no exotherm but endotherm; 2, solid sample may melt and then vaporize. 3, gas sample is not concentrated on DSC sensor so that the reaction from a gas sample cant be detected in pressure DSC. Therefore, a caution statement on pressure differential scanning calorimetry for the scope of this standard has been added: Because of the large headspace to sample size in a pressure DSC, great care should be taken if it is used for the thermal stability of a solid or a liquid in an inert environment. Liquid vaporization can completely skew the results. 2. Limit the sample container to sealed high-pressure ones (able to hold at least 7MPa) for common DSC (not high pressure DSC). As shown in Fig 3 and Fig 4, open DSC container and low pressure sealed DSC container will give either false negative or no meaningful result. only the sealed high-pressure DSC container gives a reliable degradation activity.