GB/T 5566-2003

This standard specifies a test method for determining the crush resistance of rubber or plastics hoses by applying a compressive load between two parallel plates. It is used in quality control and product development within the fluid systems industry, particularly for hoses intended for applications like hydraulic, pneumatic, or industrial fluid transfer where the hose must maintain its internal diameter under external pressure. The test is applied to evaluate the hose's ability to resist deformation when subjected to crushing forces, ensuring reliable performance in installations where hoses may be stepped on, clamped, or exposed to other compressive loads.