GB/T 24302-2009 English PDF

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GB/T 24302-2009: Inspection of grain and oils -- Determination of rice yellow-coloured index
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24302-2009	149	Add to Cart	2 days	Inspection of grain and oils -- Determination of rice yellow-coloured index	Valid

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Basic data

Standard ID: GB/T 24302-2009 (GB/T24302-2009)
Description (Translated English): Inspection of grain and oils -- Determination of rice yellow-coloured index
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B20
Classification of International Standard: 67.060
Word Count Estimation: 5,594
Date of Issue: 2009-09-30
Date of Implementation: 2010-01-01
Quoted Standard: GB 1354; GB 5491; GB/T 5698-2001
Regulation (derived from): National Standard Approval Announcement 2009 No.10 (Total No.150)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the color yellow rice index terms and definitions given side, principle, instruments and appliances, sample preparation, operation step Yan and reproducibility. This standard applies to rice, rice colored yellow index measurement.

GB/T 24302-2009: Inspection of grain and oils -- Determination of rice yellow-coloured index

---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.
Inspection of grain and oils. Determination of rice yellow-coloured index ICS 67.060 B20 National Standards of People's Republic of China Inspection of grain and rice color yellowness index determination Posted 2009-09-30 2010-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by the National Food Authority. This standard by the National Standardization Technical Committee OILS. This standard is drafted by. National Food Authority Standard Quality Center, the Hubei Provincial Cereals, Oils and food quality monitoring stations, Henan University of Technology, China Institute of Metrology, Zhengzhou Huafu Instrument Development Co., Ltd. Honghu Honghu wave rice industry limited liability company, Satake Machinery (Suzhou) Co., the company. The main drafters of this standard. Zhu light, bears rather, than in London, Zhouzhan Ming, Ma Yu, Yang Hongwei, Li Nong, Wang Zhiming, Liu Li, Li Lei, Liu Yong, Wang Yan. Inspection of grain and rice color yellowness index determination

1 Scope

This standard specifies the color yellow rice index measurement terms and definitions, principles, apparatus and appliances, sample preparation, procedures, and weight Reproducibility. This standard applies to rice, yellow rice color index measured.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 1354 rice GB 5491 grain and oilseeds testing for sampling, and sample method GB/T 5698-2001 term color

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 It indicates the degree of color rice yellow, represented by Y m1. The greater the yellowness index (small), indicating that the sample deeper yellow (light), whereas show The more yellow light (deep). Yellowness index is calculated using the following formula. Y m1 = 100 × 1.30 × X-1.15 × Z () Y Where. X, Y, Z --- D65 illumination at 10 ° field of view measured tristimulus values. NOTE. According to GB/T 5698-2001 provides that, in the three-color system, and the test-stimulus color matching to reach the amount required three reference color stimuli as tristimulus values. 3.2 Number of color light is reflected or transmitted after rice, rice available yellowness index Y m1 represents. Principle 4 4.1 Spectral color measurement method (spectrophotometry) Measuring spectral color measurement of spectral radiance factor of rice, at 10 ° field of view D65 illumination, the integrated color calculable rice Tristimulus values, and then calculate the rice yellow index Y m1. 4.2 Integral photoelectric colorimetric method (colorimeter method) Rice with a colorimeter directly measure the reflected color to give tristimulus values \u200b\u200bmeasured on the analog signal is amplified and converted into a digital signal, and then count Calculating rice yellow index Y m1.

5 apparatus and appliances

5.1 sampler or sub-model. ......

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