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GB/T 31334.2-2015: Test methods for dipped canvas -- Part 2: Yarn crimp on warp and density
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| GB/T 31334.2-2015 | English | 169 |
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Test methods for dipped canvas -- Part 2: Yarn crimp on warp and density
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GB/T 31334.2-2015
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Basic data | Standard ID | GB/T 31334.2-2015 (GB/T31334.2-2015) | | Description (Translated English) | Test methods for dipped canvas -- Part 2: Yarn crimp on warp and density | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G47 | | Classification of International Standard | 83.140.99 | | Word Count Estimation | 8,825 | | Date of Issue | 2015-02-04 | | Date of Implementation | 2015-06-01 | | Quoted Standard | GB/T 6529; GB/T 8170 | | Regulation (derived from) | National Standards Bulletin 2015 No. 3 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Standard specifies the use of curl or tensile tester instrument dipped canvas warp yarns curl test method (Method A and Method B) and the use of fabric density Mirror dipped canvas the warp and weft density of Test Method. This section applies to polyester fiber, nylon fiber material manufactured by the measured dipped canvas to curl and warp and weft yarn density of the warp. | GB/T 31334.2-2015: Test methods for dipped canvas -- Part 2: Yarn crimp on warp and density---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test methods for dipped canvas Part 2. Yarn crimp on warp and density
ICS 83.140.99
G47
National Standards of People's Republic of China
Dipped canvas Test Method
Part 2. curl and warp density
Part 2. Yarncrimponwarpanddensity
Issued on. 2015-02-04
2015-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 31334 "dipped canvas Test Method" is divided into six parts.
--- Part 1. adhesive strength;
--- Part 2. curl and warp density;
--- Part 3. stiffness;
--- Part 4. Dry heat shrinkage;
--- Part 5. tensile properties;
--- Part 6. m² dry weight.
This section GB/T Part of 231,334.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by the China Petroleum and Chemical Industry Association.
This part of the National Rubber and rubber products Standardization Technical Committee dipped skeleton material Technical Committee (SAC/TC35/SC13)
Centralized.
This part mainly drafted by. Wuhu Hua Ye Industrial Fabrics Co., Qingdao New Material Science and Technology Industrial Park Development Co., Ltd. Qingdao Branch
Technical University, Qingdao Daxin Branch Rubber Technology Services Limited, Qingdao New Materials Lab.
The main drafters of this section. Zhu Ze He, Bing Xin, Liu Li, the world peak, Chen Fu flowers.
Dipped canvas Test Method
Part 2. curl and warp density
1 Scope
This section provides the use of the instrument or curl pull tester dipped canvas by (Method A test method to curl yarn and square
Method B) and Test Method dipped canvas the warp and weft density was measured using a fabric density mirror.
This section applies to polyester fiber, nylon fiber material produced by the dipped canvas in the warp and weft yarn to curl density
Determination.
Note. choose Method A or Method B in any of the tests, but using warp curl value obtained by these two methods may be different tests, with
Which test method body may choose to seek the views of the company dipped canvas or negotiation.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6529 Textiles Standard conditioning and testing atmosphere
GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Straight tension stretchedforce
Elimination of the yarn crimp minimum force applied to the yarn.
3.2
Stretched length stretchedlength
Crimped yarn tension in straight lengths up straight state.
3.3
Warp curl yarncrimponwarp
Dipped canvas in crimped warp yarns reaches stretched length elongation.
4 Test principle
4.1 warp curl
Remove from the known length of yarn dipped canvas spline, under the action of a certain tension to make it straight, yarn length measurement in that state
As the length of the straight to the stretched length of yarn and the yarn dipped canvas in the difference between the lengths of the latter percentage is curl yarn.
The size of the tension is applied shall be determined in accordance with varieties warp and nominal linear density dipped canvas.
4.2 Density
Use of mobile dipped canvas fabric density mirror measuring the number of warp yarns or weft within a certain length, converted into a 10cm length
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