Division 2 PRINCIPLE
United Kingdom
The viscose, cupro or modal fibre is dissolved from a known dry mass of the mixture, with a reagent consisting of formic acid and zinc chloride. The residue is collected, washed, dried and weighed; its corrected mass is expressed as a percentage of the dry mass of the mixture. The percentage of dry viscose, cupro or modal fibre is found by difference.
Notes on Division IV
Textual amendments
- F1
- F2
Footnotes
- f1
-
Detailed list of fibres under each method.