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GB/T 5531-2018 English PDF

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GB/T 5531-2018: Inspection of grain and oils -- Heating test of vegetable fats and oils
Status: Valid

GB/T 5531: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 5531-2018English119 Add to Cart 3 days [Need to translate] Inspection of grain and oils -- Heating test of vegetable fats and oils Valid GB/T 5531-2018
GB/T 5531-2008English199 Add to Cart 2 days [Need to translate] Inspection of grain and oils -- Heating test of vegetable fats and oils Obsolete GB/T 5531-2008
GB/T 5531-1985English199 Add to Cart 2 days [Need to translate] Inspection of vegetable oils--Heating test Obsolete GB/T 5531-1985

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Basic data

Standard ID GB/T 5531-2018 (GB/T5531-2018)
Description (Translated English) Inspection of grain and oils -- Heating test of vegetable fats and oils
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X04
Classification of International Standard 67.040
Word Count Estimation 6,655
Date of Issue 2018-02-06
Date of Implementation 2018-09-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 5531-2018: Inspection of grain and oils -- Heating test of vegetable fats and oils

---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-Heating test of vegetable fats and oils ICS 67.040 X04 National Standards of People's Republic of China Replacing GB/T 5531-2008 Oil and vegetable inspection vegetable oil heating test Published on.2018-02-06 2018-09-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 5531-2008 "Grain Oil Inspection Vegetable Oil Heat Test". The main changes of this standard compared with GB/T 5531-2008 are as follows. --- Increased visual inspection (see Chapter 5); --- Modified sample color measurement after heating (see 6.3.3,.2008 version 7.3); --- Added results calculation (see 6.4). This standard is proposed by the National Grain Administration. This standard is under the jurisdiction of the National Grain and Oil Standardization Technical Committee (SAC/TC270). This standard was drafted by. National Institute of Food Science, Jiusan Cereals & Oils Industry Group Co., Ltd., Shandong Samsung Maize Industry Technology Co., Ltd. Limited company, China Textile Grain & Oil Import & Export Co., Ltd., Central Reserve Grains Jilin Branch Cereals & Oils Testing Center, China Food Products Marketing Co., Ltd. The main drafters of this standard. Xue Yalin, Zhu Lin, Zhang Dong, Zhang Rui, Luo Shunian, Wang Le, Wang Yuehua, Murong Zheng, Song Xin, An Jun. Oil and vegetable inspection vegetable oil heating test

1 Scope

This standard specifies the terms and definitions, principles, instruments and tools for the determination of vegetable oil heating test, sample preparation, operating procedures, and procedures. Calculations and presentations, etc. This standard applies to vegetable oils.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. Preparation of GB/T 15687 Animal and Vegetable Oil Samples

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Heating test heatingtest When the sample was heated to 280°C, a test was made to see if there were any precipitates and changes in the color of the oil.

4 Principle

Phospholipids in vegetable oils decompose or precipitate at a high temperature of 280°C, making the oil darker and darker and producing precipitates or flocculations. Physical phenomena, which determine the quality of vegetable oils. Usually the oil becomes deeper and darker, and more precipitates or floc-like precipitates indicate the quality of vegetable oils The worse.

5 Visual method

5.1 Instruments and Apparatus 5.1.1 electric furnace. 1000W adjustable electric furnace. 5.1.2 Metal discs (sand trays) or asbestos webs filled with fine sand. 5.1.3 Beaker. 100 mL. 5.1.4 Thermometer. 0°C~350°C, ±2°C. 5.1.5 iron prop frame. 5.2 Operation method Take about 50 mL of the mixed sample and inject it into a 100 mL beaker (5.1.3). Observe the color of the sample. Place the sample on a metal tray (sand bath). Heat the pan (5.1.1) or asbestos mesh (5.1.2) on the electric furnace (5.1.1) and hang the thermometer (5.1.4) with the iron support (5.1.5) so that the mercury ball is in the sample

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