Division 2 PRINCIPLE
United Kingdom
The cellulose fibre is dissolved out from a known dry mass of the mixture, with 75 % m/m sulphuric acid. The residue is collected, washed, dried and weighed; its mass is expressed as a percentage of the dry mass of the mixture. The proportion of dry cellulose fibre is found by difference.
Notes on Division IV
Textual amendments
- F1
- F2
Footnotes
- f1
-
Detailed list of fibres under each method.