CBPL methods do not include proprietary information such as ASTM Standards.
Raw hides and skins (other than furskins) and leather
Test Method for pH of Leather (ASTM D 2810)
Test Method for Chromic Oxide in Leather (Perchloric Acid Oxidation) (ASTM D 2807)
Standard Guide for Reflected-Light Photomicrography (ASTM E 883)