This standard specifies the determination method of carbon black ash. Calculate the ash content by burning a drying sample in a high temperature furnace at a controlled temperature until all carbon-containing substances are oxidized, then chilling down and weighing in a dryer. It is suitable for the determination of various carbon black types such as carbon black for rubber, acetylene carbon black and pigment carbon black to ensure the accuracy and comparability of their ash content. The standard refers to relevant documents such as GB/T 3778, GB/T 3782 and GB/T 7044 to ensure the conformity and standardization of the test. It is suitable for quality control and technical evaluation in the production and application of various types of carbon black.