This part of GB/T 2910 specifies a method, using formic acid, to determine the percentage of polyamide fiber, after removal of non-fibrous matter, in textiles made of binary mixtures of polyamide and cotton, viscose, cupro, modal, polyester, polypropylene, chlorofiber, acrylic or glass fiber.
It is also applicable to mixtures with wool and animal hair, but when the wool content exceeds 25 %, the method described in GB/T 2910.4 should be used.
Foreword I
1 Scope
2 Normative References
3 Principle
4 Reagents
5 Apparatus
6 Test Procedure
7 Calculation And Expression Of Results
8 Precision
Bibliography