FZ/T 42002-2021 English PDF

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FZ/T 42002-2021: Mulberry spun silk yarn
Status: Valid

FZ/T 42002: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
FZ/T 42002-2021	279	Add to Cart	3 days	Mulberry spun silk yarn	Valid
FZ/T 42002-2010	399	Add to Cart	3 days	Mulberry spun silk yarn	Obsolete
FZ/T 42002-1997	479	Add to Cart	4 days	Spun silk yarn	Obsolete

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FZ/T 50015   FZ/T 42007   FZ/T 42009   FZ/T 42010   

Basic data

Standard ID: FZ/T 42002-2021 (FZ/T42002-2021)
Description (Translated English): Mulberry spun silk yarn
Sector / Industry: Spinning & Textile Industry Standard (Recommended)
Classification of Chinese Standard: W42
Word Count Estimation: 12,164
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China

FZ/T 42002-2021: Mulberry spun silk yarn

---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.
Mulberry spun silk yarn ICS 59.080.20 W42 People's Republic of China Textile Industry Standard Replace FZ/T 42002-2010, FZ/T 42003-2011 Mulberry silk Released on 2021-04-19 2021-07-01 implementation Issued by the Ministry of Industry and Information Technology of the People's Republic of China

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces FZ/T 42002-2010 "Mulberry Silkworm Silk" and FZ/T 42003-2011 "Cylinder Mulberry Silk Silk". Compared with FZ/T 42002-2010, the main technical changes of this standard are as follows. ---The scope of application has been increased "twisted strands with a linear density ranging from 50Nm/2 (200.0dtex×2) to 270Nm/2 (37.0dtex×2) Packed or tube-packed mulberry silk”, clarified that this standard is also applicable to tube-packed mulberry silk (see Chapter 1, Chapter 1 of the.2010 edition); ---Modified the terms and definitions of "explicit inspection items" (see 3.1, 3.1 in the.2010 edition); ---The explanation of fineness has been deleted (see 4.1 in the.2010 edition); --- Change the nominal fineness to the nominal linear density (see 4.1, 4.2 in the.2010 edition); --- Change the breaking length to breaking strength (see 6.2.1 Table 2,.2010 edition 5.4); --- Added the classification and remarks of the appearance defect of mulberry silk yarn (see 6.2.3.1 and 6.2.3.2); ---Revised the appearance quality rating regulations of twisted mulberry silk (see 6.4.5.1); ---Added the requirements for the appearance quality evaluation of tube-packed mulberry silk (see 6.4.5.2); ---Take the practice reduction rate as the selection test item (see 8.2.1.4); ---Deleted the calculation content of the standard dry weight and measured moisture regain weight of mulberry silk silk (see 8.2 in the.2010 edition); ---Added the packaging requirements for tube-packed mulberry silk (see Chapter 9); --- Move the standard quality calculation method of mulberry silk silk into the appendix (see appendix A). This standard was proposed by the China National Textile and Apparel Council. This standard is under the jurisdiction of the National Silk Standardization Technical Committee (SAC/TC401). Drafting organizations of this standard. Jiangsu Susi Silk Co., Ltd., Zhejiang Silk Technology Co., Ltd., Zhejiang Golden Eagle Spun Silk Co., Ltd., Zi Boda Dyefang Silk Group Co., Ltd., Sichuan Antai Cocoon Silk Group Co., Ltd., Dali Silk (Zhejiang) Co., Ltd., Shaoxing Miaomeng Culture Creative Co., Ltd., Hangzhou Customs Technology Center, Zhejiang Institute of Standardization, Zhejiang Xidebao Silk Technology Co., Ltd., Liaoning Caiyi Wild Silkworm Silk Products Co., Ltd. The main drafters of this standard. Wu Dongping, Chen Song, Ge Yan, Wen Chaojun, Chen Shanqin, Pan Lulu, Dong Suuo, Zhou Ying, Ding Yuanyuan, Zhang Xiaoguang, Yu Dan, Fan Qiping, Tian Chi. The previous versions of the standard replaced by this standard are as follows. ---FJ406-1984; ---FZ/T 42002-1997, FZ/T 42002-2010, FZ/T 42003-2011. Mulberry silk

1 Scope

This standard specifies the terms and definitions, marking, linear density classification, requirements, test methods, inspection rules, packaging and marking of mulberry silk Numerical rounding. This standard applies to double strands with singeing linear density ranging from 50Nm/2 (200.0dtex×2) to 270Nm/2 (37.0dtex×2) Twisted or tube-packed mulberry silk.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 250 Gray Sample Card for Textile Color Fastness Test Evaluation GB/T 8170 Numerical rounding rules and the expression and determination of limit values GB/T 8693 Labeling of textile yarn FZ/T 40003-2021 Mulberry silk silk test method

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Explicittestitem Not as a basis for grading, but it needs to be indicated on the inspection report to provide users with relevant quality information inspection items. 3.2 Select the test item optionaltestitem There is no setting in the standard assessment requirements, but sometimes it should be an item that users need to inspect.

4 marking

4.1 Nominal linear density The nominal linear density of double-strand mulberry silk yarn is expressed as the nominal number of single strands/2 (nominal number of single strands × 2). Example. 100 double-stranded spun silk is represented by 100Nm/2 (100dtex×2). 4.2 Twist direction The twisting direction of mulberry silk yarn shall be implemented in accordance with the regulations of GB/T 8693.

5 Linear density binning

The thread density of mulberry silk is divided into three grades. high count, medium count, and low count. The regulations are shown in Table 1. ......

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