This standard provides a uniform test method for determining the tensile strength of various dense refractory materials under ambient temperature conditions. The core principle involves subjecting specially prepared dumbbell-shaped specimens to axial tensile loading at a constant rate in a room-temperature environment until fracture occurs. The tensile strength is then calculated based on the maximum load before fracture and the cross-sectional area of the specimen. Conducting this test requires the use of an electronic universal testing machine or a hydraulic tensile testing machine capable of providing a stable tensile load, along with specialized tensile fixtures suitable for dumbbell-shaped refractory specimens to ensure uniform axial force application and accurate test results.