GB/T 2910.17-2009 Textiles—Quantitative chemical analysis—Part 17:Mixtures of chlorofibers(homopolymers of vinyl chloride)and certain other fibers(method using sulfuric acid) (English Version)
Textiles—Quantitative chemical analysis—Part 17:Mixtures of chlorofibers(homopolymers of vinyl chloride)and certain other fibers(method using sulfuric acid)
1 Scope
This part of GBT 2910 specifies a method, using sulfuric acid, to determine the percentage of chlorofibres, after removal of non - fibrous material, in textiles made of binary mixtures of chlorofibres based on homopolymers of vinyl chloride (after - chlorinated or not) and cotton, viscose, cupro, modal, acetate, triacetate, polyamide, polyester, certain acrylic and certain modacrylic fibres. [The modacrylics concerned are those which give a limpid solution when immersed in concentrated sulfuric acid (ρ = 1, 84 g/ml).]
This method can be used, particularly in place of the methods described in GBT 2910.12 and GBT 2910.13, in all cases where a preliminary test shows that the chlorofibres do not dissolve completely either in dimethylformamide or in the azeotropic mixture of carbon disulfide and acetone.
Contents
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
Standard
GB/T 2910.17-2009 Textiles—Quantitative chemical analysis—Part 17:Mixtures of chlorofibers(homopolymers of vinyl chloride)and certain other fibers(method using sulfuric acid) (English Version)
Standard No.
GB/T 2910.17-2009
Status
valid
Language
English
File Format
PDF
Word Count
2000 words
Price(USD)
74.0
Implemented on
2010-1-1
Delivery
via email in 1 business day
Detail of GB/T 2910.17-2009
Standard No.
GB/T 2910.17-2009
English Name
Textiles—Quantitative chemical analysis—Part 17:Mixtures of chlorofibers(homopolymers of vinyl chloride)and certain other fibers(method using sulfuric acid)
1 Scope
This part of GBT 2910 specifies a method, using sulfuric acid, to determine the percentage of chlorofibres, after removal of non - fibrous material, in textiles made of binary mixtures of chlorofibres based on homopolymers of vinyl chloride (after - chlorinated or not) and cotton, viscose, cupro, modal, acetate, triacetate, polyamide, polyester, certain acrylic and certain modacrylic fibres. [The modacrylics concerned are those which give a limpid solution when immersed in concentrated sulfuric acid (ρ = 1, 84 g/ml).]
This method can be used, particularly in place of the methods described in GBT 2910.12 and GBT 2910.13, in all cases where a preliminary test shows that the chlorofibres do not dissolve completely either in dimethylformamide or in the azeotropic mixture of carbon disulfide and acetone.
Contents of GB/T 2910.17-2009
Contents
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