This part of GB/T 2910 specifies a method, using Dimethylacetamide, to determine the percentage of polyurethane elastic fibre, after removal of non-fibrous matter, in textiles made of mixtures of:
-polyurethane elastic fibre, and
-cotton, viscose, cupro, modal, lyocell, polyamide, polyester, silk and wool fibre.
This part is not applicable to the consiton where polyacrylonitrile fibre exists.
1 Scope
2 Normative References
3 Principle
4 Reagents
5 Apparatus
6 Test Procedure
7 Calculation and Expression of Results
8 Precision