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Norm
ÖNORM EN ISO 4098
Issue date: 2006 04 01
Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter (ISO 4098:2006)
This International Standard specifies a method of determination of water-soluble matter, water-soluble
inorganic matter and water-soluble organic matter.
It is applicab...
Withdrawn: 2018 10 15
Publisher:
Austrian Standards International
Format:
Digital | 9 Pages
Language:
German
| English
| Download GER/ENG
Currently valid:
Optionally co-design standards:
ICS
This International Standard specifies a method of determination of water-soluble matter, water-soluble
inorganic matter and water-soluble organic matter.
It 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 should 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.
ÖNORM EN ISO 4098
2018 10 15
Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and...
Norm
ÖNORM EN ISO 4098
2006 04 01
Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and...
Norm
↖
ÖNORM S 7008
1982 09 01
Testing of leather; determination of the contents of organic materials extractable by washing out (l...
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