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ISO 4098:2018

Current Revision

Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter

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ISO 4098 | IULTCS/IUC 6:2018 specifies a method of determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter.

ISO 4098 | IULTCS/IUC 6:2018 is applicable to all leather types. The result obtained by this analysis depends on factors such as:

- the degree to which the leather is ground;

- the extraction temperature;

- the extraction period;

- the ratio of leather to water.

To obtain comparable results, it is consequently imperative that test conditions be accurately reproduced.

In all cases, any ammonium salts in the filtrate are included as part of the water-soluble matter and are then decomposed on ignition. Thus they contribute towards the result for water-soluble organic substances. The concentration of the ammonium salts can be determined in the filtrate separately if required.


SDO ISO: International Organization for Standardization
Document Number ISO 4098
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee IULTCS
Publish Date Document Id Type View
Not Available ISO 4098:2018 Revision