GB/T 4513.6 - 2017 is the sixth part of the standard for amorphous refractory materials, which is dedicated to the determination of their physical performance. The standard specifies the test methods for key physical properties such as bulk density, porosity, and room temperature compressive strength. Detail the required instruments and equipment, such as Balance, Pressure Tester, etc., standardize the sample preparation and test process. Through these standardized operations, the physical performance data of amorphous refractory materials can be accurately obtained. This provides a basis for manufacturers to control product mass and relevant industries to choose materials reasonably, ensuring that amorphous refractory materials function stably in high temperature environments.