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GB/T 24302-2009: Inspection of grain and oils -- Determination of rice yellow-coloured index
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| GB/T 24302-2009 | English | 149 |
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Inspection of grain and oils -- Determination of rice yellow-coloured index
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GB/T 24302-2009
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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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