This part of GB/T 3903 specifies the test methods for the hardness of the outsole and heel of footwear. This part is applicable to the determination of the hardness of outsole products of footwear such as outsoles and molded soles (including the heel of molded soles where the heel and the outsole are integrated).
GB/T 3903.4-2008 Referenced Document
GB/T 22049 Footwear—Standard atmospheres for conditioning and testing of footwear and components for footwear*, 2019-08-30 Update
GB/T 3903.4-2008 history
2017GB/T 3903.4-2017 Footwear—Test methods for whole shoe—Hardness