The ISO 787-2-2021 standard provides a universal test method for determining the volatile content of pigments and fillers at a temperature of 105 ° C. This method is applicable to all pigments and fillers that are stable at 105 ° C to ensure accurate determination of their volatile components. This method assesses the Stability and Purity of a sample by measuring its weight loss at a specified temperature to determine the percentage of its volatile mass fraction. The implementation of this standard helps to ensure quality control of pigments and fillers and bring them into compliance with relevant industrial codes and application requirements.