FZ/T 20025-2013 English PDF

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FZ/T 20025-2013: Determination of twist stablity properties of yarn. Untwist method
Status: Valid

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Basic data

Standard ID: FZ/T 20025-2013 (FZ/T20025-2013)
Description (Translated English): Determination of twist stablity properties of yarn. Untwist method
Sector / Industry: Spinning & Textile Industry Standard (Recommended)
Classification of Chinese Standard: W20
Classification of International Standard: 59.080.01
Word Count Estimation: 4,495
Quoted Standard: GB/T 3291.1; GB/T 6529; GB/T 8170
Regulation (derived from): Ministry of Industry and Information Notice No. 52 of 2013; industry standard for filing Notice 2013 No. 12 (No. 168 overall)
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China
Summary: This standard specifies: Yarn setting effect determination. This standard applies to: Yarn setting effect Determination, Other yarn styling effect can be determined with reference to execution.

FZ/T 20025-2013: Determination of twist stablity properties of yarn. Untwist method

---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.
Determination of twist stablity properties of yarn.Untwist method ICS 59.080.01 W20 People 's Republic of China textile industry standards Determination of styling effect of wool yarn by twisting and twisting method 2013-10-17 release 2014-03-01 Implementation Issued by the Ministry of Industry and Information Technology of the People 's Republic of China

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Textile Industry Federation. This standard by the National Textile Standardization Technical Committee Wool Textile Subcommittee (SAC/TC209/SC8) centralized. This standard is drafted by Jiangsu Sunshine Group Co., Ltd., the National Textile Product Quality Supervision and Inspection Center (Jiangyin) to participate in the drafting. The main drafters of this standard. Chen Lifen, Yang Haijun, He Liang, Cao Xiuming, Shi Xiaozhen, Huayu Long, Xu Ji, Lu Yongliang, Tao Yayun, Wang Huaxing. Determination of styling effect of wool yarn by twisting and twisting method

1 Scope

This standard specifies the determination method of the hair styling effect. This standard applies to the determination of hair styling effect, other yarn styling effect determination can refer to the implementation.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Textiles - Properties and test terms for textile and textile materials - Part 1. Fibers and yarns GB/T GB/T 6529 Standard atmosphere for textiles for humidity control and testing Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170

3 terms and definitions

GB/T 3291.1 Definitions and the following terms and definitions apply to this document. 3.1 Hair styling effect twiststablitypropertiesofyarn The ability of the yarn to maintain its twist stability.

4 principle

A pair of folded yarn in the relaxation conditions, due to their own internal stress along the fold point of natural back twist, by twisting to determine its back Twist number.

5 devices and materials

5.1 yarn length measuring instrument; frame length 1m. 5.2 Scissors.

6 humidity and test with the standard atmosphere

6.1 Standard humidity for humidity control and testing 20.0 ℃ ± 2.0 ℃, relative humidity 65.0% ± 4.0%. 6.2 pre-conditioning with the atmosphere. the temperature does not exceed 50.0 ℃, relative humidity of 10.0% to 25.0%.

7 Sample preparation

7.1 Sampling For the test samples, should be from the same species, the same batch of random extraction. ......

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