Standard No.:	GB/T 2910.4-2009
English Name:	Textiles—Quantitative chemical analysis—Part 4:Mixtures of certain protein and certain other fibers(method using hypochlorite)
Chinese Name:	纺织品 定量化学分析 第4部分：某些蛋白质纤维与某些其他纤维的混合物(次氯酸盐法)
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
Issued on:	2009-06-15
Implemented on:	2010-1-1
Status:	superseded
Superseded by:	GB/T 2910.4-2022 Textiles—Quantitative chemical analysis—Part 4：Mixtures of certain protein fibres with certain other fibres (method using hypochlorite) GB/T 42079-2022 Digital load side transmission lighting control(DLT)—Basic requirements GB/T 2910-1997 Textile--Binary fibre mixtures--Quantitative chemical analysis
Superseded on:	1998-5-1
Superseding:	GB/T 2910-1997 Textile--Binary fibre mixtures--Quantitative chemical analysis
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	55.0
Delivery:	via email in 1 business day

1 Scope This part of GB/T 2910 specifies a method, using hypochlorite, to determine the percentage of protein fibre, after removal of non-fibrous matter, in textiles made of binary mixtures of certain non-protein fibres and one protein fibre, as follows: -wool, chemically-treated wool, other animal-hair fibres, silk, regenerated protein fibres based on casein, and -cotton, cupro, viscose, modal, acrylic, chlorofibres, polyamide, polyester, polypropylene, glass and elastane. If several protein fibres are present, the method gives the total of their amounts but not their individual quantities. 2 Normative References The following normative documents contain provisions which, through reference in this Part of GB/T 2910, constitute provisions of this Part. For dated reference, subsequent amendments (excluding corrigendum content) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Part are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies.

1 Scope 2 Normative References 3 Principle 4 Reagents 5 Apparatus 6 Test Procedure 7 Calculation and Expression of Results 8 Precision