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GB/T 5518-2008: Inspection of grain and oil -- Determination of relatively density of grain and oilseeds
Status: Valid GB/T 5518: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5518-2008 | English | 149 |
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Inspection of grain and oil -- Determination of relatively density of grain and oilseeds
| Valid |
GB/T 5518-2008
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| GB/T 5518-1985 | English | 199 |
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Inspection of grain and oilseeds--Methods for determination of specific gravity of grain
| Obsolete |
GB/T 5518-1985
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PDF similar to GB/T 5518-2008
Basic data | Standard ID | GB/T 5518-2008 (GB/T5518-2008) | | Description (Translated English) | Inspection of grain and oil -- Determination of relatively density of grain and oilseeds | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X10 | | Classification of International Standard | 67.040 | | Word Count Estimation | 5,558 | | Date of Issue | 2008-11-04 | | Date of Implementation | 2009-01-20 | | Older Standard (superseded by this standard) | GB/T 5518-1985 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.18 (Total No.131) | | Issuing agency(ies) |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 food, oilseeds relative density of terms and definitions, principle, reagents, instruments and appliances, sample preparation, analysis steps and calculations. This standard applies to food, relative density of oil. | GB/T 5518-2008: Inspection of grain and oil -- Determination of relatively density of grain and oilseeds
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Inspection of grain and oil. Determination of relatively density of grain and oilseeds
ICS 67.040
X10
National Standards of People's Republic of China
Replacing GB/T 5518-1985
Determination of grain and oilseeds relative density Inspection of grain
Posted 2008-11-04
2009-01-20 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 5518-1985 "grain and oilseeds for food inspection determination of specific gravity."
This standard and GB/T 5518-1985 main technical differences are as follows.
--- Change the standard name is "Inspection of grain and determination of grain and oilseeds relative density";
--- Increasing the terms and definitions and principles;
--- The standard two methods are combined;
--- Modify the sample volume and reagent requirements symmetry like;
--- Increased the determination of environmental requirements;
--- The results of calculation of the repeatability requirement has been modified.
The standard proposed by the National Food Authority.
This standard by the National Standardization Technical Committee OILS.
This standard was drafted. China Grains Logistics Group Co., Ltd. North good, national grain and oil quality inspection center, food science research in Liaoning Province
The study.
The main drafters of this standard. Du Haibo, Ding Yaokui, Wei Zuguo, Shang Yane, a high tree.
This standard replaces the standards previously issued as follows.
--- GB/T 5518-1985.
Determination of grain and oilseeds relative density Inspection of grain
1 Scope
This standard specifies the grain and oilseeds relative density of terms and definitions, principle, reagents, apparatus and appliances, sample preparation, analysis step
And the results of calculations.
This standard applies to food, the relative density measured fuel.
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
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
At a predetermined temperature and operating conditions, than the quality of the food, the quality of oil net volume with the same volume of water.
Principle 4
Grain, oil is added to a sample of a certain quality, a predetermined liquid volume, resulting in increase in the volume of the liquid, the increased volume is again
Like net volume. Than the quality of the sample with the same volume of water is calculated.
5 Reagents
5.1 95% ethanol. AR.
5.2 20% ethanol. 95% ethanol (5.1) 21mL distilled water 79mL.
6 apparatus and appliances
6.1 Balance. dividing the value of 0.01g.
6.2 cylinder. 25mL, dividing the value of 0.1mL.
6.3 Density bottle. long-necked bottle with the piston. There 0.1mL neck scale, count 10mL, zero-scale at the lower long-necked, under zero
Adjust the liquid volume of the piston.
7 Sample Preparation
GB 5491 by decimation, to remove impurities and imperfections tablets.
Analysis Step 8
8.1 cylinder method
At room temperature (22 ℃ ± 5 ℃) under the graduated cylinder (6.2) poured into 20% ethanol (5.2) 10mL, and then placed in a sample of about 5g (m1, accurate to
0.01g), a little shaken, expelled bubbles, until after the smooth surface, immediately reads the volume of liquid rises (Vp).
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