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GB/T 24902-2010: Inspection of grain and oils -- Determination of crude fat content in maize -- Near-infrared method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24902-2010 | English | 139 |
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Inspection of grain and oils -- Determination of crude fat content in maize -- Near-infrared method
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GB/T 24902-2010
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Basic data | Standard ID | GB/T 24902-2010 (GB/T24902-2010) | | Description (Translated English) | Inspection of grain and oils -- Determination of crude fat content in maize -- Near-infrared method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B20 | | Classification of International Standard | 67.060 | | Word Count Estimation | 6,670 | | Date of Issue | 2010-06-30 | | Date of Implementation | 2011-01-01 | | Quoted Standard | GB 5491; GB/T 5512; 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 the determination of corn near infrared fat content (dry basis) of the terms and definitions, principle, equipment, measurement, result processing and presentation, identify and deal with abnormal samples, accuracy and precision and test reports requirements. This standard applies to maize fat content (dry basis) for rapid determination. This standard does not apply to arbitration test. | GB/T 24902-2010: Inspection of grain and oils -- Determination of crude fat content in maize -- Near-infrared method
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Inspection of grain and oils.Determination of crude fat content in maize.Near-infrared method
ICS 67.060
B20
National Standards of People's Republic of China
Determination of fat content of corn 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
This is a standard method for rapid determination of the fat content of maize (dry basis) based on the classical approach based on the arbitration test shall be to the country
Conventional methods have been prescribed home standards, namely GB/T 5512 "Inspection of grain and grain Determination of fat content" shall prevail.
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. National Food Authority Standard Quality Center, Henan University, Jilin Grain and Oil Quality Supervision and Inspection Station, Chongqing Grain
Oil quality supervision and inspection, grain and oil products in Anhui Province Quality Supervision and Inspection Station, Jiangxi Province Grain and Oil Quality Supervision and Inspection Station.
Drafters of this standard. Long clever, Bian Branch, Wu Chun-rong, SONG long right, Zou Yong, Ji a smooth, intimate.
Determination of fat content of corn grain and oil inspection
Near Infrared Spectroscopy
1 Scope
This standard specifies the determination of corn crude fat content (dry basis) of the terms and definitions, principles, instruments and equipment near infrared analysis method, determination, knot
Fruit processing and presentation, and asked to confirm the process, accuracy and precision and test reports abnormal samples.
This standard applies to maize crude fat 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 5512 Inspection of grain and grain Determination of fat content
GB/T 24895 Inspection of grain NIR calibration model validation and network management and maintenance of general rules
3 Terms and Definitions
Terms and definitions GB/T 24895 apply to this standard established.
Principle 4
Use fat molecules in the C-H, N-H, O-H bond and other pan-frequency vibration or rotation of the near infrared light absorption, chemical meter
Methodology to establish correlation between the amount of corn Near Infrared Spectroscopy and its fat content between the calculation of fat content of corn samples.
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 Determination
6.1 preparation before the test
6.1.1 Sample collection and decimation executed according to the provisions of GB 5491.
6.1.2 Sample finishing to remove impurities in the sample and broken kernels.
6.1.3 according to the near-infrared analyzer (5.1) specification requirements for instrument self-test and warm-up test.
6.1.4 In the case where the state of at least a day of near infrared analyzer (5.1) monitoring once with monitoring samples. It should track and monitor the results every day,
The measurement results of the same sample monitoring compared with the initial measurement result, shall ensure compliance with the provisions of 9.2. Monitor sample preparation in accordance with Appendix A
Regulations.
6.1.5 The monitoring sample measurement results do not meet the requirements of 9.2, should stop using, and reported to the network administrator or equipment suppliers to be adjusted
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