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FZ/T 20031-2017 English PDF

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FZ/T 20031-2017: Test method for seam elongation of wool knitted goods
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Basic data

Standard ID FZ/T 20031-2017 (FZ/T20031-2017)
Description (Translated English) Test method for seam elongation of wool knitted goods
Sector / Industry Spinning & Textile Industry Standard (Recommended)
Classification of Chinese Standard W20
Classification of International Standard 59.080.01
Word Count Estimation 5,572
Date of Issue 2017-11-07
Date of Implementation 2018-04-01
Quoted Standard GB/T 3923.2-2013; GB/T 6529; GB/T 8170
Regulation (derived from) Ministry of Industry and Information Technology Bulletin 2017 No. 48
Issuing agency(ies) Ministry of Industry and Information Technology of the People's Republic of China
Summary This standard specifies the test method for the determination of the elongation rate of wool knitwear using the constant load method. This standard applies to wool knitwear. Other products can refer to implementation.

FZ/T 20031-2017: Test method for seam elongation of wool knitted goods

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(Test method of stitch elongation of wool knitwear) ICS 59.080.01 W20 People's Republic of China Textile Industry Standard Wool knitwear seam elongation test method Published on.2017-11-07 2018-04-01 Implementation The Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Textile Industry Federation. This standard is under the jurisdiction of the National Textile Standardization Technical Committee Wool Textile Branch (SAC/TC209/SC3). This standard was drafted by. Tianxiang (Tianjin) Quality Technical Service Co., Ltd., Beijing Wool Textile Research Institute Inspection Center, Zhejiang Province Sweater Quality Testing Center. The main drafters of this standard. Yu Wen, Zhao Zhihua, Gong Yi, Mao Minghua, Kabin, Ding Yufeng. Wool knitwear seam elongation test method

1 Scope

This standard specifies the test method for the determination of the sewing elongation of wool knitwear by the constant load method. This standard applies to wool knitwear. Other products can refer to implementation.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 3923.2-2013 Textile fabrics - Tensile properties - Part 2. Determination of breaking strength (grasping method) GB/T 6529 Standard Atmosphere for Humidification and Testing of Textiles GB/T 8170 Representation and Determination of Numerical Rounding Rules and Limit Values

3 Principle

A force parallel to the stitch direction is applied to a predetermined length of stitch, and is stretched to a predetermined load at a constant rate. By calculating the seam extension The ratio of the long value to the original length of the stitches yields the elongation of the stitch.

4 Equipment and Tools

4.1 Using a CRE type tensile tester or other device meeting the test requirements, the instrument shall have the following general characteristics. a) Has the function of indicating or recording the stretching value or the elongation at the time of reaching the specified load, the error of elongation indication does not exceed ± 1mm; b) The instrument should be able to set the tensile speed of 300mm/min with an accuracy of ±2%; c) The instrument should be able to set a 100mm gauge length with an accuracy of ±1mm; d) Holder. grasping test holder, dimensions and requirements in accordance with 6.1e) of GB/T 3923.2-2013; e) The instrument should be able to set a fixed load value of 33N with an accuracy of ±0.5N. 4.2 steel ruler, accurate to 1mm.

5 Standard atmosphere for humidity adjustment and test

Preconditioning, humidity control, and standard atmosphere for testing should be performed in accordance with GB/T 6529.

6 samples

The test site takes the middle of the stitching process. Can be tested directly at the seam of the garment, if the specimen is cut, the width of the specimen is not less than 50mm (fabric double measurement, excluding joint allowance), and the effective clamping length of the joint must be 100mm. Different types of seams Test, each seam test 3 different parts.

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