GB/T 2910.13-2009 PDF in English
GB/T 2910.13-2009 (GB/T2910.13-2009, GBT 2910.13-2009, GBT2910.13-2009)
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Textiles -- Quantitative chemical analysis -- Part 14: Mixtures of certain chlorofibre and certain other fibers (method using carbon disulfide/acetone)
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Standards related to (historical): GB/T 2910.13-2009
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GB/T 2910.13-2009: PDF in English (GBT 2910.13-2009) GB/T 2910.13-2009
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.01
W 04
GB/T 2910.13-2009 / ISO 1833-13:2006
Partially replacing GB/T 2910-1997
Textiles - Quantitative chemical analysis - Part 13: Mixtures
of certain chlorofibers and certain other fibers (method
using carbon disulfide/acetone)
(ISO 1833-13:2006, IDT)
ISSUED ON: JUNE 15, 2009
IMPLEMENTED ON: JANUARY 01, 2010
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC.
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 Principles ... 6
4 Reagents ... 7
5 Equipment ... 7
6 Test steps ... 7
7 Calculation and presentation of results ... 8
8 Precision ... 8
References ... 9
Textiles - Quantitative chemical analysis - Part 13: Mixtures
of certain chlorofibers and certain other fibers (method
using carbon disulfide/acetone)
1 Scope
This Part of GB/T 2910 specifies the method for the determination of chlorine-
containing fiber content, in a binary mixture consisting of the following fibers, after
removal of non-fibrous matter by the carbon disulfide/acetone method:
- Certain chlorinated fibers, whether or not post-chlorinated;
AND
- Wool, animal hair, silk, cotton, viscose, cupro, modal, polyamide, polyester, acrylic
fiber, glass fiber.
When the content of wool or silk in the mixture exceeds 25%, it should use the method
of GB/T 2910.4.
When the content of nylon in the mixture exceeds 25%, it should use the method of
GB/T 2910.7.
2 Normative references
The provisions in following documents become the provisions of this Part through
reference in this Part of GB/T 2910. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Part; however,
parties who reach an agreement based on this Part are encouraged to study if the latest
versions of these documents are applicable. For undated references, the latest edition of
the referenced document applies.
GB/T 2910.1 Textiles - Quantitative chemical analysis - Part 1: General principles
of testing (GB/T 2910.1-2009, ISO 1833-1:2006, IDT)
3 Principles
Use carbon disulfide/acetone azeotrope reagent, to dissolve and remove chlorine-
containing fiber from a mixture of known dry mass. Collect the residue. Wash, dry,
weigh it. Use the corrected mass to calculate its percentage of the dry mass in the
mixture. Obtain the mass percentage of the chlorine-containing fibers, through the
difference.
4 Reagents
Use the reagents, which are specified in GB/T 2910.1 and 4.1 and 4.2 of this Part.
4.1 Azeotropic mixture of carbon disulfide/acetone.
Mix 555 mL of carbon disulfide and 445 mL of acetone.
Safety warning: The reagent is poisonous, so perfect protective measures shall be
taken when using it.
4.2 Ethanol.
5 Equipment
Use the equipment, which is specified in GB/T 2910.1 and 5.1, 5.2, 5.3 of this Part.
5.1 Conical flask with a stopper, which has a capacity of not less than 200 mL.
5.2 Mechanical oscillator.
5.3 Watch glass.
6 Test steps
Follow the general procedures, which are specified in GB/T 2910.1. Then follow the
steps below:
Put the specimen into a stoppered conical flask. Add 100 mL of carbon
disulfide/acetone mixed solution (4.1) per gram of specimen. Close the cork tightly.
Oscillate it on a mechanical oscillator for 20 minutes. At the beginning of the oscillation,
it may loosen the cork once or twice, to release excessive pressure.
Filter the solution through a glass fritted crucible of known dry mass.
Then use 100 mL solution (4.1), to repeat the above operation.
Repeat the above operation several times, until no trace of chlorine-containing fibers
remains, after a drop of the solution is evaporated on a watch glass.
Use some more solution (4.1), to wash the residue from the conical flask with a stopper,
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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