GB/T 31334.2-2015 English PDF

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GB/T 31334.2-2015: Test methods for dipped canvas -- Part 2: Yarn crimp on warp and density
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 31334.2-2015	169	Add to Cart	3 days	Test methods for dipped canvas -- Part 2: Yarn crimp on warp and density	Valid

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GB/T 36363   GB/T 20786   GB 18241.1   GB/T 31334.6   GB/T 31334.5   GB/T 31334.4   

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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