This standard specifies the method for determining the apparent density and mass per unit area of leather. This standard is applicable to the determination of apparent density and unit area mass of various types of leather.
GB/T 39500-2020 Referenced Document
GB/T 39364 Leather—Chemical, physical, mechanical and fastness tests—Sampling location
QB/T 2707 Leather-Physical and mechanical tests - Sample preparation and conditioning
QB/T 2709 Leather-Physical and mechanical tests-Determination of thickness
GB/T 39500-2020 history
2020GB/T 39500-2020 Leather—Physical and mechanical tests—Determination of apparent density and mass per unit area