The ASTM D1814-70 (2010) standard specifies a test method for the measurement of the thickness of leather units. This method is suitable for thickness measurement of leather products and raw materials, ensuring that leather products meet mass requirements during production. The standard describes the steps for accurate measurement using appropriate instruments and techniques to help determine the uniformity and mass of leather. This standard has important guiding significance for the leather industry, suppliers and manufacturers in the production and inspection process, especially in leather quality control, product performance evaluation, and the need to comply with relevant specifications has practical application value.