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FZ/T 01026-2017

Chinese Standard: 'FZ/T 01026-2017'
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BASIC DATA
Standard ID FZ/T 01026-2017 (FZ/T01026-2017)
Description (Translated English) (Quantitative chemical analysis of textiles Multicomponent fiber mixtures)
Sector / Industry Spinning & Textile Industry Standard (Recommended)
Classification of Chinese Standard W04
Word Count Estimation 16,199
Date of Issue 2017-04-12
Date of Implementation 2017-10-01
Older Standard (superseded by this standard) FZ/T 01026-2009
Summary This standard specifies the quantitative chemical analysis method for textiles of multicomponent fiber blends.

FZ/T 01026-2017
FZ
TEXTILE INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.01
W 04
Replacing FZ/T 01026-2009
Textiles - Quantitative chemical analysis -
Multinary fiber mixtures
纺织品 定量化学分析
多组分纤维混合物
ISSUED ON. APRIL 21, 2017
IMPLEMENTED ON. OCTOBER 01, 2017
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Principle ... 4 
4 Reagents and equipment ... 4 
5 Humidity conditioning and test atmosphere ... 5 
6 Sampling and pretreatment ... 5 
7 Analytical procedures and results calculation... 5 
8 Test report ... 8 
Appendix A (Informative) Example of quantitative chemical analysis of
quaternary blended fabric ... 9 
Appendix B (Informative) Example of quantitative chemical analysis of five-
component blended fabric ... 17 
Appendix C (Informative) Example of quantitative chemical analysis of six-
component blended fabric ... 21 
Textiles - Quantitative chemical analysis -
Multinary fiber mixtures
1 Scope
This standard specifies the quantitative chemical analysis method for textiles of
multinary fiber mixtures.
This standard applies to textiles of quaternary and above fiber mixtures.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 2910 (All parts) Textiles - Quantitative chemical analysis
GB/T 8170 Rules of rounding off for numerical values & expression and
judgement of limiting values
GB 9994 Conventional moisture regains of textiles
3 Principle
For the qualitatively identified multinary fiber mixture textiles, use appropriate
pretreatment methods to remove non-fibrous materials, determine the
appropriate dissolution scheme, select the specified chemical reagents,
dissolve one or several component fibers in the mixture, calculate the mass
percentage of each component fiber from the mass loss after dissolution or the
mass of the residual fiber.
4 Reagents and equipment
Use the equipment and reagents as specified in the relevant parts of GB/T 2910.
P2 - The net dry mass percentage of the 2nd component, %;
P3 - The net dry mass percentage of the 3rd component, %;
P4 - The net dry mass percentage of the 4th component (insoluble
component), %;
r1 - The dry weight of the residue after the first component is dissolved and
removed by the 1st reagent, in grams (g);
r2 - The dry weight of the residue after the first and second components are
dissolved and removed by the 1st and 2nd reagent, in grams (g);
r3 - The dry weight of the residue after the first, second and third components
are dissolved and removed by the 1st, 2nd and 3rd reagent, in grams (g);
d2,1 - The mass loss correction factor of the second component in the first
reagent;
d3,1 - The mass loss correction factor of the third component in the first
reagent;
d3,2 - The mass loss correction factor of the third component in the second
reagent;
d4,1 - The mass loss correction factor of the fourth component in the first
reagent;
d4,2 - The mass loss correction factor of the fourth component in the second
reagent;
d4,3 - The mass loss correction factor of the fourth component in the third
reagent;
m - The net dry mass of the specimen (after pretreatment), in grams (g).
A.1.2 Application examples
A.1.2.1 Overview
After qualitative analysis, the fabric is known to be composed of four kinds of
fibers. wool, nylon, viscose and cotton. The continuous dissolution scheme is
used to continuously remove the three components, and the results are as
follows.
1) The dry weight of the specimen after pretreatment, m = 1.1854 g;
2) The dry weight of the specimen (nylon + viscose + cotton) after the first
treatment by 1 mol/L alkaline sodium hypochlorite in accordance with the
P3A (viscose) = 29.89%, P4A (cotton) = 35.00%.
The composition of the blended fabric is as follows.
Wool 4.4%, nylon 30.7%;
Viscose 29.9%, cotton 35.0%.
A.2 Scheme 2 (other dissolution schemes)
A.2.1 Overview
After qualitative analysis, the fabric is known to be composed of four kinds of
fibers. wool, mulberry silk, acrylic fiber and cotton. Two samples are taken, the
dissolution scheme is as follows.
a) The first sample
- After the pretreatment, the dry weight of the specimen is m1 = 1.4284 g;
- In accordance with the method of GB/T 2910.18, use the 75% sulfuric
acid to dissolve the (mulberry silk + acrylic + cotton), the remaining (wool)
dry weight. r (wool) = 0.3721 g.
b) The second sample
- After the pretreatment, the dry weight m2 = 1.4200 g;
- In accordance with the method of GB/T 2910.4, use the 1 mol/L alkaline
sodium hypochlorite to dissolve the (wool + silk), the remaining (acrylic
+ cotton) dry weight. r (acrylic + cotton) = 0.6555 g;
- In accordance with the method of GB/T 2910.12, use the
dimethylformamide to dissolve the acrylic fiber, and the remaining
(cotton) dry weight. r (cotton) = 0.3561 g.
A.2.2 Net dry mass percentage
A.2.2.1 For the first specimen, consider the quaternary mixture as a two-
component sample (n = 2), the first component (mulberry + acrylic + cotton),
and the second component (wool), to calculate the net dry mass percentage of
fiber, then it can get the following results.
P2 (wool) = (0.3721 × 0.985)/1.4284 × 100 = 25.66%
P1 (mulberry silk + acrylic + cotton) = 100 - 25.66 = 74.34%
A.2.2.2 For the second sample, consider the quaternary mixture as a three-
component sample (n = 3), the first component (wool + mulberry silk), the
reagent;
d4,1 - The mass loss correction factor of the fourth component in the first
reagent;
d4,2 - The mass loss correction factor of the fourth component in the second
reagent;
d4,3 - The mass loss correction factor of the fourth component in the third
reagent;
d5,1 - The mass loss correction factor of the fifth component in the first
reagent;
d5,2 - The mass loss correction factor of the fifth component in the second
reagent;
d5,3 - The mass loss correction factor of the fifth component in the third
reagent;
d5,4 - The mass loss correction factor of the fifth component in the fourth
reagent;
m - The dry mass of the specimen (after pretreatment), in grams (g).
B.2 Application examples
B.2.1 Overview
After qualitative analysis, the fabric is known to be composed of five kinds of
fibers. wool, nylon, acrylic, viscose and polyester. The continuous dissolution
scheme is used to continuously remove the 4-component, and the results are
as follows.
1) After the sample is pretreated, the dry weight is m = 1.2421 g;
2) The dry weight after first treatment of the specimen in accordance with the
method of GB/T 2910.4 by 1 mol/L alkaline sodium hypochlorite (nylon +
acrylic + viscose + polyester). r1 = 0.6046 g;
3) The dry weight of the residues above residue (acrylic fiber + viscose fiber
+ polyester) after the second treatment of the above residue r1 in
accordance with the method of GB/T 2910.7 by formic acid. r2 = 0.4936 g;
4) The dry weight of the residues above residue (viscose fiber + polyester)
after the third treatment of the above residue r2 in accordance with the
method of GB/T 2910.12 by dimethylformamide. r3 = 0.4033 g;
5) The dry weight of the residues above residue (polyester) after the fourth
d2,1 - The mass loss correction factor of the second component in the first
reagent;
d3,1 - The mass loss correction factor of the third component in the first
reagent;
d3,2 - The mass loss correction factor of the third component in the second
reagent;
d4,1 - The mass loss correction factor of the fourth component in the first
reagent;
d4,2 - The mass loss correction factor of the fourth component in the second
reagent;
d4,3 - The mass loss correction factor of the fourth component in the third
reagent;
Related standard:   FZ/T 01028-2016  FZ/T 01030-2016
Related PDF sample:   GB/T 5714-2019  GB/T 4146.2-2017
   
 
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