Division 2 PRINCIPLE
United Kingdom
The polypropylene fibre is dissolved out from a known dry mass of the mixture with boiling xylene. The residue is collected, washed, dried and weighed; its mass, corrected if necessary, is expressed as a percentage of the dry mass of the mixture. The percentage of polypropylene is found by difference.
Notes on Division IV
Textual amendments
- F1
- F2
Footnotes
- f1
-
Detailed list of fibres under each method.