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FZ/T 20028-2015 English PDF

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FZ/T 20028-2015: Dehaired cashmere - Determination of fibre length and length distribution - Photoelectric method
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Basic data

Standard ID FZ/T 20028-2015 (FZ/T20028-2015)
Description (Translated English) Dehaired cashmere - Determination of fibre length and length distribution - Photoelectric method
Sector / Industry Spinning & Textile Industry Standard (Recommended)
Classification of Chinese Standard W20
Classification of International Standard 59.080.01
Word Count Estimation 5,560
Date of Issue 2015-07-14
Date of Implementation 2016-01-01
Quoted Standard GB/T 6529; GB/T 8170
Regulation (derived from) PRC MIIT Announcement (2015 No.49)
Issuing agency(ies) Ministry of Industry and Information Technology of the People's Republic of China
Summary This Standard specifies a method for determining the photoelectric method of cashmere fiber length and length distribution parameters. This Standard applies to carding cashmere. This Standard does not apply to Article cashmere, cashmere yarn removed from the loose fibers, does not apply to a mixture of cashmere and other fibers. The average length of cashmere fibers similar to other animals may also refer to the use of this standard.

FZ/T 20028-2015: Dehaired cashmere - Determination of fibre length and length distribution - Photoelectric method


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(Determination carding cashmere fiber length and length distribution of the photoelectric method) ICS 59.080.01 W20 People's Republic of China textile industry standards Determination carding cashmere fiber length and length distribution Optical method Issued on. 2015-07-14 2016-01-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Textile Industry Association. This standard by the National Standardization Technical Committee Textile Wool Textile Technical Committee (SAC/TC209/SC3) centralized. This standard was drafted. Intertek (Tianjin) Quality and Technical Services Ltd., Zhejiang tripod Textile Co., Ningxia Textile Fiber Testing Association, Ningxia Jiayuan Cashmere Group Co., Ltd., Bank of Ningxia Cashmere Industry Co., Ltd., Beijing Xuelian Group Co., Ltd., Beijing Branch of Wool Textile Institute of Inspection Center. The main drafters of this standard. Karen Chen, Chenxue Biao, Yang Xue, Yang meritorious, Bai Xuhui, Zhao Junjie, Chen Dongjun, Gu Hong, Ma Zhiqiang, Huang Lin. Determination carding cashmere fiber length and length distribution Optical method

1 Scope

This standard specifies a method for determining the photoelectric method and length cashmere fiber length distribution parameters. This standard applies to carding cashmere. This standard does not apply to Article cashmere, cashmere yarn removed from the loose fibers, does not apply to a mixture of cashmere and other fibers. The average length of cashmere and other similar animal fiber may also refer to use this method.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 6529 Textiles Standard conditioning and testing atmosphere GB/T 8170 repair value expressed about the rules and limit values and judgment

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Photoelectric method photoelectricmethod Optical scanning means test to determine the fiber length of the fiber bundle method, also known as video device according to law. 3.2 Tow fiberbeard In the photoelectric length of the test method, a sample clip comb through the needle and take a bundle of fibers for scan test brush straight formation. 3.3 Sample testspecimen For the preparation of the fiber of the fiber bundle. 3.4 Span length spanlength In the photoelectric length of the test method, the fiber bundle in a certain percentage of the distance across the fiber. Note. The start of the sweep that the number of fibers was 100%; the fiber hung on the needle sampling clamp, the starting point is 3.8mm. 3.5 Span length distribution fibrogram In the photoelectric length of the test method, the length of the fiber bundle scan tester was the second cumulative frequency graph of fiber length. 3.6 The average length of meanlength The average length of all fiber-based mass calculated by testing a fiber bundle. 3.7 Upper half mean length upperhalfmeanlength Fibers arranged in sequence from long to short, and then divided into two parts of equal quality, the average length of the upper half is where the longer portion of the fibers of the fiber

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