Standard No.:	GB/T 2910.5-2009
English Name:	Textiles—Quantitative chemical analysis—Part 5:Mixtures of viscose,cupro or modal and cotton fibres(method using sodium zincate)
Chinese Name:	纺织品 定量化学分析 第5部分：粘胶纤维、铜氨纤维或莫代尔纤维与棉的混合物（锌酸钠法）
Chinese Classification:	W04    Basic standards and general methods
Professional Classification:	GB    National Standard
ICS Classification:	59.080.01 59.080.01     Textiles in general 59.080.01
Source Content Issued by:	AQSIQ; SAC
Issued on:	2009-6-15
Implemented on:	2010-1-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	1500 words
Translation Price(USD):	55.0
Delivery:	via email in 1 business day

This part of GB/T 2910 specifies a method, using sodium zincate, to determine the percentage of viscose, cupro or modal fibre, after removal of non-fibrous matter, in textiles made of binary mixtures of viscose or most of the current cupro or modal fibres and raw, scoured, kiered or bleached cotton. Where a cupro or modal fibre is present, a preliminary test should be carried out to see whether it is soluble in the reagent. The part is not applicable to mixtures in which the cotton has suffered extensive chemical degradation, nor when the viscose, cupro or modal fibre is rendered incompletely soluble by the presence of certain permanent finishes or reactive dyes that cannot be removed completely.