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FZ/T 52056-2021: Selenium-rich viscose staple fiber
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Selenium-rich viscose staple fiber
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FZ/T 52056-2021
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Basic data | Standard ID | FZ/T 52056-2021 (FZ/T52056-2021) | | Description (Translated English) | Selenium-rich viscose staple fiber | | Sector / Industry | Spinning & Textile Industry Standard (Recommended) | | Classification of Chinese Standard | W52 | | Word Count Estimation | 10,191 | | Issuing agency(ies) | Ministry of Industry and Information Technology of the People's Republic of China | FZ/T 52056-2021: Selenium-rich viscose staple fiber---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.
(Rich three viscose staple fiber)
ICS 59.060.20
CCS W52
Textile Industry Standard of the People's Republic of China
Selenium-enriched viscose staple fiber
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.
Please note that some content of this document may be patented. Publication of this document
Institutions do not assume responsibility for identifying patents.
This document is proposed by China National Textile and Apparel Council.
This document is under the jurisdiction of China National Textile and Apparel Council.
This document is drafted by. Hebei Jigao Chemical Fiber Co., Ltd., Shanghai Textile Industry Technical Supervision Institute, Anhui Province Product Quality Supervision
Inspection and Research Institute, China Chemical Fiber Industry Association.
The main drafters of this document. Li Zhenfeng, Zhang Huanzhi, Ding Zhenhua, Wang Lili, Zhang Zixin, Cui Jiayi.
Selenium-enriched viscose staple fiber
1 Scope
This document specifies the terms and definitions, classification and marking, technical requirements, test methods, inspection rules and markings,
Requirements for packaging, transportation and storage.
This document applies to selenium-enriched viscose staple fibers with a linear density of 1.10dtex~6.70dtex.
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 1903.21-2016 National Food Safety Standard Food Nutrition Enhancer Selenium-enriched Yeast
GB/T 4146 (all parts) Textile chemical fibers
GB 5009.93-2017 National Food Safety Standard for Determination of Selenium in Food
GB/T 6503 Test method for moisture regain of chemical fibers
GB/T 6504 Test method for oil content of chemical fibers
GB/T 8170-2008 Numerical Rounding Rules and Representation and Judgment of Limit Values
GB/T 14334 Sampling method of chemical fiber staple fibers
GB/T 14335-2008 Test method for linear density of chemical fiber staple fibers
GB/T 14336 Test method for short fiber length of chemical fibers
GB/T 14337 Test method for tensile properties of chemical fiber staple fibers
GB/T 14338 Test method for crimping properties of chemical fiber staple fibers
GB/T 14339-2008 Chemical fiber short fiber defect test method
FZ/T 50013 Cellulose chemical fiber whiteness test method blue light diffuse reflection factor method
FZ/T 50014 Determination method of residual sulfur content of cellulose chemical fibers Direct iodometric method
3 Terms and Definitions
The terms and definitions defined in GB/T 4146 (all parts) and the following terms and definitions apply to this document.
3.1
Selenium-rich yeast selenium-richyeast
Inoculate unmodified yeast strains with suitable fermentation nutrients, and then ferment and culture the sodium selenite contained in the medium.
It is converted into organic selenium, then separated and dried to obtain yeast with a total selenium content of 1000mg/kg~2500mg/kg.
[Source. GB 1903.21-2016, 1, with modifications]
3.2
Short fiber produced by viscose method using natural cellulose pulp as raw material and adding selenium-enriched yeast.
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