International Organization for Standardization (ISO)
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ISO 3073:1975
Scope
The method is applicable to undyed wool in any form, for example loose fibre, sliver, yarn or fabric. It is also applicable to dyed wool when the amount of dye extracted during the test does not interfere with the determination of the end-point of the titration. The determined value is expressed as a percentage by mass.
ISO 3073:1975 history
1975ISO 3073:1975 Wool; Determination of acid content