This part of GB/T 3903 specifies the test methods for determining the stretchability of uppers or shaped uppers, with the purpose of assessing suitability for end use. This section applies to various uppers for footwear.
GB/T 3903.38-2008 Referenced Document
GB/T 22049 Footwear—Standard atmospheres for conditioning and testing of footwear and components for footwear*, 2019-08-30 Update
ISO 2418 Leather — Chemical, physical, mechanical and fastness tests — Position and preparation of specimens for testing*, 2023-02-06 Update
GB/T 3903.38-2008 history
2008GB/T 3903.38-2008 Footwear.Test methods for uppers.Resistance to damage on lasting