GB/T 45707-2025 Leather—Crust full chrome upper leather—Specifications

GB/T 17928-1999 Leather—Determination of the stitch tear resistance GB/T 17928-2023 Leather—Physical and mechanical tests—Measurement of stitch tear resistance GB/T 19941.1-2019 Leather and fur—Determination of formaldehyde content—Part 1:High performance liquid chromatography method GB/T 19941.2-2019 Leather and fur—Determination of formaldehyde content—Part 2:Colorimetric method GB/T 19942-2005 Leather and fur—Chemical tests—Determination of banned azo colourants GB/T 19942-2019 Leather and fur—Chemical tests—Determination of banned azo colorants GB/T 22807-2008 Leather and fur—Chemical tests—Determination of chromium Ⅵ content GB/T 22807-2019 Leather and fur—Chemical tests—Determination of chromium(Ⅵ) content:Colorimetric method GB/T 22808-2008 Leather and fur—Chemical tests—Determination of pentachlorophenol content GB/T 22808-2021 Leather and fur—Chemical tests—Determination of chlorinated phenols content GB/T 38402-2019 Leather and fur—Chemical tests—Determination of chromium(Ⅵ) content:Chromatographic method GB/T 39369-2020 Leather—Physical and mechanical tests—Determination of water vapour permeability GB/T 40920-2021 Leather—Tests for colour fastness—Colour fastness to cycles of to-and-fro rubbing GB/T 45613-2025 Leather—Physical and mechanical tests—Determination of water vapour absorption GB/T 45711.2-2025 Leather—Determination of tear load—Part 2:Double edge tear QB/T 2262 QB/T 2710-2018 Leather Physical and Mechanical Tests Determination of Tensile Strength and Elongation Rate QB/T 2710-2005 Leather Physical and Mechanical Tests Determination of Tensile Strength and Elongation Rate QB/T 2712-2005 Leather-Physical and mechanical tests-Determination of distension and strength of grain-Ball burest test QB/T 2713-2005 Leather physical and mechanical tests determination of shrinkage temperature QB/T 2714-2018 Leather Physical and Mechanical Tests Determination of Durability to Flexion QB/T 2714-2005 Physical and mechanical tests for leather - Determination of folding endurance QB/T 2718-2018 The determination of dichloromethane extract from leather chemical test QB/T 2718-2005 Leather-Chemical tests-Determination of matter soluble in dichloromethane QB/T 2720-2018 Determination of Chromium Oxide (Cr2O3) in Leather by Titration Method QB/T 2720-2005 Leather-Chemical tests-Determination of chromic oxide QB/T 2724-2018 Leather Chemical Test pH Determination QB/T 2724-2005 QB/T 2724-2005 Leather Chemical Test pH Determination QB/T 5313-2018 Chemical test for leather: determination ofchrome oxide (Cr2O3) by photometry QB/T 5314-2018 Leather Chemical Test: Determination of Chromium Oxide (Cr2O3) by Atomic Absorption Spectroscopy QB/T 5315-2018 Leather Chemical Test Determination of Chromium Oxide (Cr2O3): Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) GB/T 19941.1-2025 Leather and fur—Determination of formaldehyde content—Part 1:High-performance liquid chromatography method

ISO 20940:2021