This standard specifies a specialized test method for the frictional properties of shoe linings and insoles (such as leather, textiles, etc.), aiming to evaluate the material's resistance to slippage during wear by measuring indicators like the static friction coefficient, thereby affecting the stability and comfort of the shoe. The standard defines two test methods (Method A and Method B), with the main differences being the specimen dimensions and the applied vertical force. The specialized equipment required for this test is known as the shoe lining abrasion tester (or static friction tester). This instrument determines the angle at which the specimen begins to slide using a tiltable platform (typically tilted at a rate of 15°/min) and calculates the static friction coefficient accordingly. The main parameters of the tester include: a platform size of 300 mm x 100 mm, with Method A using a specimen size of 250 mm x 100 mm and a load mass of 700 g, while Method B uses a specimen size of 120 mm x 50 mm and a load mass of 300 g. Additionally, the corresponding international standard for this method is ISO 22653.