GB/T 35931-2018 English PDF

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GB/T 35931-2018: Test method for neps and short fiber content of cotton fibers -- Photoelectric analyser
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35931-2018	199	Add to Cart	3 days	Test method for neps and short fiber content of cotton fibers -- Photoelectric analyser	Valid

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Basic data

Standard ID: GB/T 35931-2018 (GB/T35931-2018)
Description (Translated English): Test method for neps and short fiber content of cotton fibers -- Photoelectric analyser
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B32
Classification of International Standard: 59.060.10
Word Count Estimation: 10,126
Date of Issue: 2018-02-06
Date of Implementation: 2018-09-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 35931-2018: Test method for neps and short fiber content of cotton fibers -- Photoelectric analyser

---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.
Test method for neps and short fiber content of cotton fibers - Photoelectric analyzer ICS 59.060.10 B32 National Standards of People's Republic of China Cotton fiber knot and staple fiber rate Test method Photoelectric method 2018-02-06 released 2018-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard by the National Fiber Standardization Technical Committee (SAC/TC513) centralized. This standard was drafted. National Textile Products Quality Supervision and Inspection Center (Jiangyin), Shaanxi Changling Textile Electrical and Mechanical Technology Co., Ltd., Hebei Provincial Fiber Inspection Bureau, Chinese Academy of Agricultural Sciences Cotton Institute. The main drafters of this standard. Lu Yongliang, Zhu Jiliang, Gong Shan, Shi Shudong, Tang Shurong, Lvzhihua. Cotton fiber knot and staple fiber rate Test method Photoelectric method

1 Scope

This standard specifies the photoelectric method of determination of cotton fiber neps and staple fiber rate method. This standard applies to the original cotton and cotton sliver.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 5705 Textile terminology (cotton part) GB/T 6097 cotton fiber test sampling method GB/T 6379.2-2004 Accuracy (accuracy and precision) of measurement methods and results - Part 2. Determination of standard measurement side The basic method of repeatability and reproducibility GB/T 6529 Textiles conditioning and testing standard atmosphere GB/T 8170 rounded repair rules and limit values of the representation and judgment

3 Terms and definitions

GB/T 5705 defined and the following terms and definitions apply to this document. 3.1 Fiber cotton knot fiberneps Cotton fiber entangled with each other to form the knot. 3.2 Seed meal neps seedcoatneps Cottonseed fragments with cotton fibers. 3.3 Span length spanlength In the fiber imager length curve, the length of fiber spanning the relative root percent of fiber, the relative number of fibers at the fiber holding line It is 100%. Note. The commonly used 2.5% and 50% span length said. 3.4 Effective length efficientlength The effective length (Leff) is geometrically obtained by plotting the fiber length (Bayesian plot). 3.5 Short fiber rate shortfibercontent The quality (or root number) of fibers in the cotton fiber that is shorter than a certain length limits the percentage of the total mass (or number of fibers) in the fiber. Note. 12.7mm short fiber, 12.7mm short fiber, 16mm short fiber, 16mm short fiber, ......

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