ISO 2418 Leather — Chemical, physical, mechanical and fastness tests — Position and preparation of specimens for testing*, 2023-02-06 Update
ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 4044 Leather — Chemical tests — Preparation of chemical test samples
ISO 4048 Leather — Chemical tests — Determination of matter soluble in dichloromethane and free fatty acid content
ISO 4684 Leather — Chemical tests — Determination of volatile matter
BS EN ISO 4098:2018 history
2018BS EN ISO 4098:2018 Leather. Chemical tests. Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter
2007BS EN ISO 4098:2007 Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter