FZ/T 54040-2021 English PDF

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FZ/T 54040-2021: Polybutylene terephthalate drawn textured yarns
Status: Valid

FZ/T 54040: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
FZ/T 54040-2021	189	Add to Cart	3 days	Polybutylene terephthalate drawn textured yarns	Valid
FZ/T 54040-2011	359	Add to Cart	3 days	Polybutylene terephthalate drawn textured yarns	Obsolete

Similar standards

GB/T 42823   GB/T 43014   FZ/T 54044   FZ/T 54033   FZ/T 54030   FZ/T 54046   

Basic data

Standard ID: FZ/T 54040-2021 (FZ/T54040-2021)
Description (Translated English): Polybutylene terephthalate drawn textured yarns
Sector / Industry: Spinning & Textile Industry Standard (Recommended)
Classification of Chinese Standard: W52
Word Count Estimation: 8,813
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China

FZ/T 54040-2021: Polybutylene terephthalate drawn textured yarns

---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.
(Polybutylene terephthalate (PBT) stretch yarn) ICS 59.060.20 CCS W52 Textile Industry Standard of the People's Republic of China Replaces FZ/T 54040-2011 Polybutylene terephthalate (PBT) stretch yarn Published on 2021-08-21 2022-02-01 Implementation Published by the Ministry of Industry and Information Technology of the People's Republic of China

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document replaces FZ/T 54040-2011 "Polybutylene terephthalate (PBT) elastic yarn", which is the same as FZ/T 54040-2011 The main technical changes are as follows. ---Add "GB/T 4146 (all parts)" to the normative references, and the corresponding part of the terms will not be repeated (see Chapter 2, Chapter 2 of the.2011 edition); --- Terms and definitions, delete the terms and definitions of batches, batch samples, production batches, and inspection batches (see Chapter 3, Chapter 3 of the.2011 edition); --- Product grading, cancel the superior product (AA grade), first-class product (A grade), qualified product (B grade), and the lower than qualified product is an external product (C grade). The expression is changed to. Products are divided into three grades. superior products, first-class products, and qualified products (see 5.1, 5.1 of the.2011 edition); ---The index of crimp stability of first-class products, first-class products, and qualified products has been changed from the original standard of ≥85.0%, ≥80.0%, and ≥70.0% ≥80.0%, ≥75.0%, ≥70.0% (see Table 1, Table 1 of the.2011 edition); ---Indices of high-quality barrel weight, changed from the original fixed weight or fixed length to. fixed weight (see Table 1, Table 1 of the.2011 edition); --- Expand the value range of the central value of elongation at break, and modify it from the original standard 25% to 35% to 25% to 40% (see Table 1, Table 1 of the.2011 edition); --- Expand the value range of the central value of the crimp shrinkage rate, and modify it from the original standard 35%~55% to 30%~65%. Table 1, Table 1 of the.2011 edition); --- Supplementary requirements for the central value of the boiling water shrinkage rate, no need to assess the boiling water shrinkage rate below 1.5% (see Table 1, Table 1 of the.2011 edition); --- The dyeing uniformity test method shall be implemented in accordance with the latest edition of GB/T 6508, without additional test conditions (see 6.4,.2011 edition 6.1.5); ---The boiling water shrinkage test adds the note "the same method is used for both supply and demand, or the skein method or the single method" (see 6.5,.2011 version 6.1.6); --- The network degree test method specifies that the manual needle movement counting method shall be used in arbitration (see 6.7, 6.1.8 of the.2011 edition); ---Appearance inspection equipment adds provisions for grading vehicles under mobile light sources and fixed light sources (see 6.9.1, 6.2.1 of the.2011 edition). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by China National Textile and Apparel Council. This document is drafted by. Jiangsu Heshili New Materials Co., Ltd., Xiamen Xianglu Chemical Fiber Co., Ltd., Tongkun Group Co., Ltd. Co., Ltd., Zhejiang Ancient Fiber Road Co., Ltd., Zhangjiagang Xinxin High Fiber Co., Ltd., Taicang Rongwen Synthetic Fiber Co., Ltd., Wuxi Gold Tonggao Fiber Co., Ltd., Zhejiang Haoneng Technology Co., Ltd., Shanghai Textile Industry Technical Supervision Institute, China Chemical Fiber Industry Association. The main drafters of this document. Qu Jianhua, Qu Yifeng, Yu Qingfeng, Chen Jianrong, Li Rong, Qu Xiufeng, Quan Xiao, Qian Qiyuan, Guo Qiaosheng, Li Hongjie, Ning Cuijuan and Gu Zhangyu. The previous versions of this document and its superseded documents are as follows. ---FZ/T 54040-2011; ---This is the first revision. Polybutylene terephthalate (PBT) stretch yarn

1 Scope

This document specifies the terms and definitions, product identification, technical requirements, test methods, Inspection rules and requirements for marking, packaging, transportation and storage. This document is applicable to the true color of the circular cross-section with a bus density of 22dtex~340dtex and a monofilament linear density of 1.0dtex~5.6dtex Polybutylene terephthalate stretch yarn. Other types of polybutylene terephthalate (PBT) elastic yarn can be used for reference.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 250 Textile color fastness test gray sample card for evaluating discoloration GB/T 2828.1-2012 Counting Sampling Inspection Procedures Part 1.Lot-by-Lot Inspection Sampling Retrieved by Acceptance Quality Limit (AQL) plan GB/T 3291.1 Textile and Textile Material Properties and Test Terms Part 1.Fibers and Yarns GB/T 3291.3 Textile Material Properties and Test Terms Part 3.General GB/T 4146 (all parts) Textile chemical fibers GB/T 6502 Chemical Fiber Filament Sampling Method GB/T 6504 Test method for oil content of chemical fibers GB/T 6505 Test method for thermal shrinkage of chemical fiber filaments (after treatment) GB/T 6506 Test method for crimping properties of synthetic fiber textured yarns GB/T 6508 Polyester filament dyeing uniformity test method GB/T 8170-2008 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 14343 Test method for linear density of chemical fiber filaments GB/T 14344 Test method for tensile properties of chemical fiber filaments FZ/T 50001-2016 Test method for network degree of synthetic fiber filaments

3 Terms and Definitions

Terms and definitions defined in GB/T 3291.1, GB/T 3291.3 and GB/T 4146 (all parts) apply to this document.

4 Product identification

4.1 Product specifications are expressed in terms of linear density (dtex) and number of single filaments (f). For example, the linear density is 167dtex, and the number of monofilaments is 48 polyparaphenylene Butylene glycol diformate (PBT) elastic yarn, its product specification is expressed as 167dtex/48f. 4.2 Product identification should include. product specification, product type, product name or batch number and other information, which can be effectively distinguished. ......

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