GB/T 14853.1 - 2013 Determination of pouring density of carbon black for granulation of focused rubber. The standard clearly stipulates the operation process from sample acquisition, instrument calibrating to specific measurement of pouring density, specifies the measurement environment, operation steps and other details, and also details the result calculation and Data processing method. Pouring density is an important performance indicator of granulated carbon black, which affects its Encasement, storage and transportation. The standard provides a unified measurement method for carbon black production and rubber processing enterprises, which helps to accurately control the product mass, optimize the production process, and promote the standardization of carbon black related operations for rubber granulation.