Sampling from whole pieces of leather, preparation of the sample. 13 chemical methods of test. Based on methods of Society of Leather Technologists and Chemists and International Union of Leather Technologists' and Chemists' Societies.
BS 1309:1974 history
2010BS EN ISO 20869:2010 Footwear - Test methods for outsoles, insoles, lining and insocks - Water soluble content
1999BS EN 12748:1999 Footwear - Test Methods for Outsoles, Insoles, Lining and Insocks - Water Soluble Content
1974BS 1309:1974 Methods of sampling and chemical testing of leather