GB/T 2910.2-2009 PDF English
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Textiles -- Quantitative chemical analysis -- Part 2: Ternary fibre mixture
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GB/T 2910.2-2009: PDF in English (GBT 2910.2-2009) GB/T 2910.2-2009
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.01
W 04
GB/T 2910.2-2009 / ISO 1833-2:2006
Partially replacing GB/T 2911-1997
Textiles - Quantitative chemical analysis –
Part 2: Ternary fibre mixture
(ISO 1833-2:2006, IDT)
ISSUED ON: JUNE 15, 2009
IMPLEMENTED ON: JANUARY 1, 2010
Issued by: General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword ... 3
Introduction ... 6
1 Scope ... 9
2 Normative references ... 9
3 Principle... 9
4 Reagents and apparatus ... 9
5 Conditioning and testing atmosphere ... 10
6 Sampling and pre-treatment of sample ... 10
7 Procedure ... 10
8 Calculation and expression of results ... 10
9 Method of analysis by a combination of manual separation and chemical
means ... 16
10 Precision of methods ... 16
11 Test report ... 17
Annex A (Informative) Examples of the calculation of percentages of the
components of certain ternary mixtures using some of the variants described
in 8.2 ... 18
Annex B (Informative) Table of typical ternary mixtures which may be
analysed using methods of analysis of binary mixtures specified in the parts
of ISO 1833 ... 22
Bibliography ... 25
Foreword
GB/T 2910 Textiles - Quantitative chemical analysis consists of the following
parts:
- Part 1: General principles of testing;
- Part 2: Ternary fibre mixture;
- Part 3: Mixtures of acetate and certain other fibres (method using
acetone);
- Part 4: Mixtures of certain protein and certain other fibers (method using
hypochlorite);
- Part 5: Mixtures of viscose, cupro or modal and cotton fibres (method
using sodium zincate);
- Part 6: Mixtures of viscose or certain types of cupro or modal or lyocell
and cotton fibres (method using formic acid and zinc chloride);
- Part 7: Mixtures of polyamide and certain other fibres (method using
formic acid);
- Part 8: Mixtures of acetate and triacetate fibres (method using acetone);
- Part 9: Mixtures of acetate and triacetate fibres (method using benzyl
alcohol);
- Part 10: Mixtures of triacetate or polylactide and certain other fibres
(method using dichloromethane);
- Part 11: Mixtures of cellulose and polyester fibres (method using sulfuric
acid);
- Part 12: Mixtures of acrylic, certain modacrylic, certain chlorofibres,
certain elastanes and certain other fibres (method using
dimethylformamide);
- Part 13: Mixtures of certain chlorofibers and certain other fibers (method
using carbon disulfide/acetone);
- Part 14: Mixtures of acetate and certain chlorofibres (method using
acetic acid);
- Part 15: Mixtures of jute and certain animal fibres (method by
determining nitrogen content);
- Part 16: Mixtures of polypropylene and certain other fibres (method
using xylene);
- Part 17: Mixtures of chlorofibers (homopolymers of vinyl chloride) and
certain other fibers (method using sulfuric acid);
- Part 18: Mixtures of silk and wool or hair (method using sulfuric acid);
- Part 19: Mixtures of cellulose fibres and asbestos (method by heating);
- Part 20: Mixtures of elastane and some other fibers (method of using
dimethylacetamide);
- Part 21: Mixtures of chlorofibers, certain modacrylics, certain elastanes,
acetates, triacetates and certain other fibers (method using
cyclohexanone);
- Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell
and flax of ramie fibres (method using formic acid and zinc chloride);
- Part 23: Mixtures of polyethylene and polypropylene (method using
cyclohexanone);
- Part 24: Mixtures of polyester and some other fibers (method using
phenol and tetrachloroethane);
- Part 101: Mixtures of soybean protein composite fibre and certain other
fibers.
This Part is the 2nd part of GB/T 2910.
GB/T 2910-1997 is replaced by the following standards: GB/T 2910.1, GB/T
2910.3, GB/T 2910.4, GB/T 2910.6, GB/T 2910.7, GB/T 2910.8, GB/T 2910.9,
GB/T 2910.10, GB/T 2910.11, GB/T 2910.12, GB/T 2910.13, GB/T 2910.14,
GB/T 2910.15, GB/T 2910.16, GB/T 2910.17, GB/T 2910.18, GB/T 2910.19
and GB/T 2910.22.
This Part identically uses ISO 1833-2:2007 Textiles - Quantitative chemical
analysis - Part 2: Ternary fibre mixtures. Compared with ISO 1833-2:2006,
this Part made the following editorial modifications:
- used Chinese standards to replace the International standards in
normative references;
- deleted the foreword of ISO 1833-2:2007.
This Part replaces GB/T 2911-1997 Textiles--Ternary fibre
mixtures--Quantitative analysis. Compared with Clause 7 of GB/T 2911-1997,
the differences in this Part are as follows:
- added the Introduction;
- deleted Clauses 4, 5, 6 of GB/T 2911-1997;
- added “Calculation of the analysis by manual separation” (8.4);
- added “Method of analysis by a combination of manual separation and
chemical means” (Clause 9);
- modified the annex of GB/T 2911-1997 to Annex A and Annex B of this
Standard.
Annex A and Annex B of this Part are informative.
This Part was proposed by China Textile Industry Association.
This Part shall be under the jurisdiction of Sub-committee on Basic Standards
of National Technical Committee on Textile of Standardization Administration
of China (SAC/TC 209/SC 1).
Main drafting organizations of this Part: Shanghai Wool Textile Science and
Technology Research Institute, Textile Industry Standardization Institute.
Main drafters of this Part: Zhu Jie, Shen Meihua, Yan Yanping, Zhu Qingfang,
Zhou Xiaodong.
Versions of standard substituted by GB/T 2911 are:
- GB/T 2910-1982;
- GB/T 2910-1997.
Textiles - Quantitative chemical analysis –
Part 2: Ternary fibre mixture
1 Scope
This Part of GB/T 2910 specifies methods of quantitative chemical analysis of
various ternary mixtures of fibres.
The field of application of each method for analysing binary mixtures,
specified in the parts of GB/T 2910, indicates the fibres to which the method is
applicable.
2 Normative references
The following standards contain the provisions which, through reference in
this part of GB/T 2910, constitute the provisions of this Part. For dated
references, subsequent amendments (excluding corrections) or revisions do
not apply to this Part. However, the parties who enter into agreement based
on this Part are encouraged to investigate whether the latest versions of
these documents are applicable. For undated reference documents, the latest
versions apply to this Part.
GB/T 2910.1, Textiles - Quantitative chemical analysis - Part 1: General
principles of testing (ISO 1833-1:2006, IDT)
3 Principle
After identification of the components of a mixture, the non-fibrous matter is
removed by a suitable pre-treatment, and then one or more of the four
variants of the process of selective solution described in the Introduction is
applied.
Except where this presents technical difficulties, it is preferable to dissolve the
major fibre component so as to obtain the minor fibre component as the final
residue.
4 Reagents and apparatus
Use the apparatus and reagents described in GB/T 2910.1-2009.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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