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GB/T 24897-2010: Inspection of grain and oils -- Crude protein determination in rice -- Near-infrared method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24897-2010 | English | 139 |
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Inspection of grain and oils -- Crude protein determination in rice -- Near-infrared method
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GB/T 24897-2010
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Basic data | Standard ID | GB/T 24897-2010 (GB/T24897-2010) | | Description (Translated English) | Inspection of grain and oils -- Crude protein determination in rice -- Near-infrared method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B20 | | Classification of International Standard | 67.060 | | Word Count Estimation | 6,657 | | Date of Issue | 2010-06-30 | | Date of Implementation | 2011-01-01 | | Quoted Standard | GB 5491; GB/T 5494; GB/T 5497; GB/T 5511; GB/T 24895 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.2 (Total No.157) | | 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 method for determining the near-infrared rice, brown rice and crude protein content (dry basis) of the terms and definitions, principle, equipment, sample preparation, side fixed, result processing and presentation, identify and deal with abnormal samples, accuracy and precision and test reporting requirements. This standard applies to rice, brown rice and crude protein content (dry basis) for rapid determination. This standard does not apply to arbitration test. | GB/T 24897-2010: Inspection of grain and oils -- Crude protein determination in rice -- Near-infrared method
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Inspection of grain and oils. Crude protein determination in rice. Near-infrared method
ICS 67.060
B20
National Standards of People's Republic of China
Determination of crude protein content of rice grain and oil inspection
Near Infrared Spectroscopy
Issued on. 2010-06-30
2011-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is a normative appendix.
The standard proposed by the National Food Authority.
This standard by the National Standardization Technical Committee OILS.
This standard was drafted. Hubei Provincial Cereals, Oils and food quality monitoring stations to monitor the Liaoning Provincial Inspection of grain, grain and oil products quality monitoring in Hunan Province
Station, Jiangxi Province Grain and Oil Quality Quality Supervision and Inspection Center, Jiangsu Provincial Grain Bureau monitor the food quality, hygiene inspection stations in Heilongjiang Province, grain and oil,
Jilin Grain and Oil Health Inspection Stations, Yunnan Province, grain and oil products Quality Supervision and Testing Center, Satake Machinery (Suzhou) Co., Ltd., Fox
Analytical Instruments, Perten Instruments.
The main drafters of this standard. Xiong Ning, more than in London, Liu Li, Liu Yong, Cui Guohua, Liu Rong, Zhang Xuan, Dai Bo, Ji Yang Lan, Shi Wei, Shao Zhiling,
Zhao Wushan, Liu Yufei, Wang Zhiming, Ni Shanshan, Wang Yan.
Determination of crude protein content of rice grain and oil inspection
Near Infrared Spectroscopy
1 Scope
This standard specifies the method for determining the near-infrared rice, brown rice and crude protein content (dry basis) of the terms and definitions, principles, instrumentations
Equipment, sample preparation, measurement, results processing and presentation, and asked to confirm the process, accuracy and precision and test reports abnormal samples.
This standard applies to rice, brown rice and crude protein content (dry basis) of rapid determination.
This standard does not apply to arbitration inspection.
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 5491 grain and oilseeds testing for sampling, and sample method
GB/T 5494 Inspection of grain and grain, oil impurities, imperfect grain inspection
GB/T 5497 grain and oilseeds - Determination of water test
GB/T 5511 Cereals and pulses - Determination of nitrogen content and calculation of crude protein content Kjeldahl method
GB/T 24895 Inspection of grain NIR calibration model validation and network management and maintenance of general rules
3 Terms and Definitions
GB/T 24895 to determine the terms and definitions apply to this standard.
Principle 4
Use of protein molecules in the C-H, N-H, O-H, C-O bond and other pan-frequency vibration or rotation of the near-infrared light absorption
Characteristics, establish the correlation between rice by near infrared spectroscopy and crude protein content between using chemometric methods to calculate rice and other samples of crude protein
White content.
5 Equipment
5.1 NIR analyzer. Add OILS NIR network equipment should comply with GB/T 24895 requirements. No added OILS near infrared
Analysis of network equipment, verify eligibility in accordance with GB/T 24895 in the provisions relating to the calibration model validation.
5.2 sample grinding equipment (applicable to the determination of powdered samples NIR analyzer). particle size distribution and homogeneity of the crushed sample should be consistent with the past
Infrared analyzer calibration model established requirements when, should be used when using the same manufacturing process and model calibration and verification.
6 Sample Preparation
6.1 GB 5491 by the method of laboratory samples and sample a test sample.
6.2 The test sample according to GB/T 5494 method for removing impurities, broken grains and brown rice outside the valley, a net rice, or rice into the net prepared rough
Rice, rice test sample.
7 Determination
7.1 preparation before the test
7.1.1 warm-up and self-test instrument, in use state at least a day of near infrared analyzer (5.1) to monitor a sample with monitoring, control samples
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