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GB/T 27628-2011 English PDF

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GB/T 27628-2011: Inspection of grain and oils -- Determination of color and bran speck in wheat flour
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 27628-2011	English	139	Add to Cart	3 days [Need to translate]	Inspection of grain and oils -- Determination of color and bran speck in wheat flour	Valid	GB/T 27628-2011

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Basic data

Standard ID	GB/T 27628-2011 (GB/T27628-2011)
Description (Translated English)	Inspection of grain and oils -- Determination of color and bran speck in wheat flour
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	B20
Classification of International Standard	67.060
Word Count Estimation	6,628
Date of Issue	2011-12-30
Date of Implementation	2012-04-01
Quoted Standard	GB/T 3977; GB/T 3978; GB/T 3979
Regulation (derived from)	Announcement of Newly Approved National Standards No. 22 of 2011
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 pink wheat flour, bran star determination of terms and definitions, principles, instruments, sample preparation, the steps, the results indicate and repeatability. This standard applies to merchandise wheat flour and bran Stars Pink determination.

GB/T 27628-2011: Inspection of grain and oils -- Determination of color and bran speck in wheat flour

---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 color and bran speck in wheat flour ICS 67.060 B20 National Standards of People's Republic of China Inspection of grain and wheat flour pink, bran Determination Issued on. 2011-12-30 2012-04-01 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 was drafted. Henan University of Technology, Beijing Chen Tektronix Instrument Technology Co., Ltd. Zhengzhou Huafu equipment. The main drafters of this standard. the right to Christine Hall, Zhouzhan Ming, Yang Hongwei, Li Guangyu, Zhang Yaru, Liu Changjiang, Li Lei. Inspection of grain and wheat flour pink, bran Determination

1 Scope

This standard specifies the pink wheat flour, bran measurement terms and definitions, principles, instruments, sample preparation, procedures, and results indicate heavy Refolding. This standard applies to commodity wheat flour and bran pink determination.

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/T 3977 color representation GB/T 3978 standard lighting and geometric conditions Methods of measurement GB/T 3979 object colors

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Pink flourcolor The color of wheat flour. Under specified conditions, the chromaticity values \u200b\u200bcolorimeter measured the surface of wheat flour, with the color space coordinate values \u200b\u200bY, x, y Or L *, a *, b * representation. 3.2 Bran Star branspeck Wheat flour bran fragments. Star bran content of wheat flour contained in the bran fragments, under specified conditions to wheat flour bran instrument The ratio of surface area to the area of \u200b\u200bthe sample measured surface bran wheat flour, values \u200b\u200bexpressed by%. Principle 4 Colorimetric value of the sample measured under the standard light source D65, d/0 mode, the condition of the field of view 10 °. Computer image processing and analysis methods, Measurement of sample surface area and bran sample surface area measured portion, the ratio of the area of \u200b\u200bbran sample surface area calculation, in% FIG.

5 Instruments

5.1 colorimeter. a light source of illumination, measurement conditions and method of color representation should be consistent with GB/T 3977, GB/T 3978 and GB/T 3979 Provisions. ΔY measurement error ≤1.5, ΔY repeated measurement error ≤0.2, stability (1h) ΔY≤0.15, calibration of the instrument should be subject to the standard board National metrology institutes and accredited within the validity period. 5.2 bran flour analyzer. bran speck content measurement accuracy ≤0.01%, stability (30min) ≤5%.

6 Sample preparation

Place the specimen jar, stir with a spoon or glass rod sample, the sample mixing.

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