EN ISO 4048:2008
Leather - Chemical tests - Determination of matter soluble in dichloromethane and free fatty acid content (ISO 4048:2008)
- Standard No.
- EN ISO 4048:2008
- Release Date
- 2008
- Published By
- European Committee for Standardization (CEN)
- Status
- Replace By
- EN ISO 4048:2018
- Latest
- EN ISO 4048:2018
- Scope
- This International Standard specifies a method for the determination of the substances in leather which are soluble in dichloromethane. This method is applicable to all types of leather.Not all fatty and similar substances can be extracted from leather with organic solvents; they may be in part soluble and partly bound to the leather. On the other hand, the solvent can dissolve non-fatty substances, e.g.sulfur and impregnants, both of which cause difficulty in the determination of the acid value and saponification value of the fat.This International Standard includes two techniques for extraction of the fatty substances: 1) extraction using the Soxhlet appa
EN ISO 4048:2008 history
- 2018 EN ISO 4048:2018 Leather - Chemical tests - Determination of matter soluble in dichloromethane and free fatty acid content
- 2008 EN ISO 4048:2008 Leather - Chemical tests - Determination of matter soluble in dichloromethane and free fatty acid content (ISO 4048:2008)
- 1998 EN ISO 4048:1998 Leather - Determination of Matter Soluble in Dichloromethane ISO 4048:1977
