GB/T 3903.12-2021 applies to outsoles of all footwear materials, specifying the test method for determining tear strength using a trouser-shaped specimen. The standard clearly defines requirements for specimen preparation, conditioning, test procedures, and result calculation. The core equipment includes a tensile testing machine with a grade 2 accuracy, a specimen punching die, a notch cutter, and a thickness gauge with an accuracy of 0.01 mm. The specimen is first conditioned according to the specified environment, then cut into a trouser shape and notched. It is stretched at a speed of 100 mm/min ± 10 mm/min, and the median force value is recorded. The tear strength is calculated in combination with the average thickness of the specimen, providing a unified basis for quality control of the tear resistance of outsoles.
| Status | Active | ||
|---|---|---|---|
| CCS | Y78 | ICS | 61.060 |
| Release Date | 2021-10-11 00:00:00 | Implementation Date | 2022-05-01 00:00:00 |
