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Import and export of textile raw materials for the inspection of chemical fibers - Part 1: tow
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SN/T 2137.1-2008
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Basic data | Standard ID | SN/T 2137.1-2008 (SN/T2137.1-2008) | | Description (Translated English) | Import and export of textile raw materials for the inspection of chemical fibers - Part 1: tow | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | W52 | | Classification of International Standard | 59.060.20 | | Word Count Estimation | 19,139 | | Date of Issue | 2008-09-04 | | Date of Implementation | 2009-03-16 | | Older Standard (superseded by this standard) | SN/T 0054-1992; SN/T 0055-1992; SN/T 0459-2005 | | Quoted Standard | GB/T 16256 | | Regulation (derived from) | Industry standard filing Notice No. 11 of 2008 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the import and export of polyester, nylon, acrylic, polyvinyl chloride, polypropylene, polyvinyl alcohol, cellulose acetate, viscose, copper, ammonia and other chemical fiber tow sampling, appearance, and quality of projects commercial quality testing methods and test results determined. This standard applies to imports of polyester, nylon, acrylic, polyvinyl chloride, polypropylene, polyvinyl alcohol, cellulose acetate, viscose, copper ammonia and other chemical fiber tow test. | SN/T 2137.1-2008: Import and export of textile raw materials for the inspection of chemical fibers - Part 1: tow
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Import and export of textile raw materials for the inspection of chemical fibers - Part 1. tow
Exit inspection and quarantine industry standard book People's Republic of China
Instead of the SN/T 0054-1992, SN/T 0055-1992, SN/T 0459-2005
Textile raw materials import and export inspection procedures
Chemical fibers - Part 1. tow
Posted 2008-09-04
2009-03-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
The partial replacement of SN/T 0054-1992 "nylon tow import inspection procedures", SN/T 0055-1992 "imports of acrylic tow Inspection Regulations
Cheng ", SN/T 0459-2005" Importers acetate tow for the inspection. "
And SN/T 0054-1992, 0055-1992 and SN/T 0459-2005 compared to the main changes in SN/T as follows.
--- Part of the terms and definitions have been added or deleted;
--- Reference to GB/T 14338-1993 "synthetic staple fiber curl performance test method" for measuring crimp properties have been modified;
--- The "total tow denier" to "tow the line density", "single yarn fineness" to "single-thread density";
--- Determination of breaking strength equivalent to the ISO 5079 "when textile fibers of single fiber breaking strength and elongation at break
Measurement ";
--- For the unit of measurement to quantify the expression method and text presentation has been modified;
--- Chapters on arrangement made adjustments;
--- Certain instruments have been adjusted;
--- Increase in the quality of test items in the "principle" and "test result determination" content.
Appendix A of this section is informative appendix.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section is responsible for drafting unit. People's Republic of China Jiangsu Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this section. Deng Jin, Yin Xianggang, Danielle season, Lan Chu, Feng Xiaojie, Zeng Gui material, He Lingyun.
This part of the standard replaces the previous editions are.
--- SN/T 0054-1992;
--- SN/T 0055-1992;
--- SN/T 0459-1995, SN/T 0459-2005.
Textile raw materials import and export inspection procedures
Chemical fibers - Part 1. tow
1 Scope
SN/T 2137 provisions of this part of the import and export of polyester, nylon, acrylic, polyvinyl chloride, polypropylene, polyvinyl alcohol, cellulose acetate, rayon, copper ammonia and other chemical fiber
Sampling tows, appearance, quality and commercial quality project testing methods and test results to determine.
This section applies to the import and export of polyester, nylon, acrylic, polyvinyl chloride, polypropylene, polyvinyl alcohol, cellulose acetate, rayon, copper ammonia and other chemical fiber tow test.
2 Normative references
The following documents contain provisions which, through reference SN/T 2137 to the present, constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 16256 Test method for linear density of textile fiber vibrometer method
3 Sampling
3.1 Sampling and sample quantity
The same contract, one invoice, one production lot of a test batch.
The number of samples of each batch of the provisions in Table 1 at random.
Table 1 chemical fiber tow test sampling requirements
Whole batch number of packets weighing
Number of samples
Appearance and quality of the sample of commercial quality samples
100 package and the following five packs 5 packs 5 packs, each pack take 6m
101 to 300 packs 10 packs 10 packs 10 packs, each pack take 6m
301 to 500 for 15 for 15 for 15 packets, each packet takes 6m
501 packages and more than 20 bags 20 bags 20 bags, each bag takes 6m
3.2 Sampling methods and sample handling
3.2.1 Regain test sample
Each bag weighed sample after the first visual inspection is performed, and then the tow end cut 1.0m ~ 1.5m long disuse, rapid clip
30g ~ 50g sample into a clean plastic bag or airtight container regain as test samples, and timely (no later than after sampling 8h) will
Samples were weighed to the nearest 0.001g.
3.2.2 oil rate and residual acetone content of the test sample
Will just take over the package regain sample, random clipping a little tow, after mixing, take 5g of said two samples, into a clean
Container, oil rates as the test sample, weighed to the nearest 0.001g. Such as acetate tow, said the need to take a sample of less than 50g
1, into a clean without acetone volatilization and reaction vessel as acetone content of residual test sample.
3.2.3 Quality test sample
Each package drawn about 1.5m long continuous strand 4 (6m total length). As a first stage tow linear density test sample, as the second paragraph
Other quality inspection sample, and the other two as a backup sample. Wherein each of the second paragraph of the tow package drawn first longitudinal sample clip about 50cm long small
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