This standard specifies the test method for determining the high-temperature volatile content in carbon black materials using thermogravimetric analysis. The method involves heating the carbon black sample to a specific temperature of 900°C or higher in a high-purity nitrogen atmosphere and accurately measuring its mass loss within this high-temperature range, thereby quantitatively evaluating the volatile components contained in the carbon black. This method is applicable to the evaluation of surface-treated carbon black and standard reference carbon black, and its results are of significant reference value for the application performance of carbon black in composite materials such as rubber and plastics. The core testing instrument for this determination is a thermogravimetric analyzer. The instrument must be equipped with a system capable of providing a stable high-purity nitrogen atmosphere, a high-temperature furnace that can be programmed to accurately heat up to the set temperature (e.g., 900°C), and a precision weighing module with a microbalance to achieve continuous, high-precision recording of sample mass changes.