GB/T 14338-2008 (GB/T14338-2008, GBT 14338-2008, GBT14338-2008)
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| GB/T 14338-2008 | English | 439 |
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Testing method for crimping performance of man-made staple fibres
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GB/T 14338-2008
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| GB/T 14338-2022 | English | 230 |
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Man-made fibre -- Test method for crimping performance of staple fibre
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GB/T 14338-2022
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Newer version: GB/T 14338-2022 Standards related to: GB/T 14338-2022
| Standard ID | GB/T 14338-2008 (GB/T14338-2008) | | Description (Translated English) | Testing method for crimping performance of man-made staple fibres | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | W50 | | Classification of International Standard | 59.060.01 | | Word Count Estimation | 11,111 | | Date of Issue | 2008-06-18 | | Date of Implementation | 2009-03-01 | | Older Standard (superseded by this standard) | GB/T 14338-1993 | | Quoted Standard | GB/T 3291.1; GB/T 6529; GB/T 8170; GB/T 14334 | | Adopted Standard | JIS L1015, NEQ | | Drafting Organization | Chemical Fiber Textile Industry Products Quality Supervision Center | | Administrative Organization | Shanghai Textile Industrial Technology Authority | | Regulation (derived from) | National Standard Approval Announcement 2008 No.10 (Total No.123) | | Proposing organization | China Textile Industry Association | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, China National Standardization Administration Committee | | Summary | This standard specifies test methods for chemical fiber short fiber crimp performance. This standard applies to polyester (PET), determination of chemical fibers such as cellulose fiber short fiber crimp performance, polypropylene (PP), , polyvinyl formal (PVA) Polyamide (nylon), polyacrylonitrile (acrylic). | GB/T 14338-2008
Testing method for crimping performance of man-made staple fibres
ICS 59.060.01
W50
National Standards of People's Republic of China
Replacing GB/T 14338-1993
Chemical fiber staple crimp performance test method
Posted 2008-06-18
2009-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard and JISL1015 "Test Methods for Chemical staple fiber" curl degree of consistency part is non-equivalent.
This standard replaces GB/T 14338-1993 "synthetic staple fiber curl performance test method."
This standard compared with GB/T 14338-1993, the main changes are as follows.
--- Increased crimp elastic instrument technical requirements (see 5.1.1);
--- Increase the extraction and the number of tests to determine the parts of the laboratory sample (see 6.1);
--- Increasing the humidity-time laboratory sample (see 6.2.1);
--- Modify the relative humidity of the humidity and atmospheric testing standards (see 6.2.2);
--- Increased pre-tension method of obtaining (see 6.2.4);
--- Increasing the confidence interval half-width value (± 3%) (see 6.3);
--- Increased humidity-fast method (see Appendix A).
Appendix C of this standard is a normative appendix, Appendix A, Appendix B, Appendix D are informative appendices.
The standard proposed by China Textile Industry Association.
This standard by the Shanghai textile industry technical supervision of the centralized.
This standard was drafted. textile fiber product quality supervision center, synthetic oil industry Quality Supervision and Inspection Center of Yizheng
Fiber Co., Ltd., Jiangsu three bedrooms Lane Group Co., Ltd. Shanghai Alliance Kyrgyzstan synthetic fiber.
The main drafters of this standard. Lu Xiuqin, Zhang language Shi, Xu Meiying, Zhang Lingxia, Huo Ling, Yang Yan.
This standard replaces the standards previously issued as follows.
--- GB/T 14338-1993.
Chemical fiber staple crimp performance test method
1 Scope
This standard specifies the test method for chemical fiber short fiber curl properties.
This standard applies to polyester (PET), polyamide (nylon), polyacrylonitrile (acrylic), polypropylene (PP), polyvinyl formal (dimension
Lun), cellulose fiber and other chemical fiber short fiber crimp performance measurement.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 3291.1 textile material properties and test - Part 1. fibers and yarns
GB/T 6529 textiles conditioning and testing - Standard atmospheres
GB/T 8170 numerical rounding rules
GB/T 14334 chemical fiber staple sampling method
3 Terms and Definitions
Terms and definitions GB/T 3291.1 established apply to this standard.
Principle 4
In the predetermined load, the force within a certain time, measured changes in length of the fibers, to determine the number of crimps of the fibers, crimp ratio, crimp back
Repetition rate and crimp modulus of elasticity and other properties.
5 equipment and instruments
5.1 meters and the number of crimps crimp elastic instrument.
Crimp elastic instrument technical requirements.
a) force accuracy.
--- Scale range 5mN, its minimum scale value 0.01mN;
----Scale range of 10mN, its minimum scale value 0.02mN;
----Scale range of 10mN more, the minimum scale value 0.05mN.
b) the length of the resolution 0.01mm.
c) force measurement error ≤1%.
5.2 cashmere plate. a contrasting color and fiber.
5.3 tweezers.
6 General Test
6.1 Sampling
Laboratory samples were taken --- parts demand; but shall not be less than 10g.
--- Bulk sample laboratory samples taken according to GB/T 14334 regulations.
NOTE. Do not extract moisture in transit accidents, damaged packaging, or the package has been opened.
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