GB/T 9825-2008 English PDF

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GB/T 9825-2008: Oilseed residues -- Determination of ash insoluble in hydrochloric acid
Status: Obsolete

GB/T 9825: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 9825-2008	239	Add to Cart	3 days	Oilseed residues -- Determination of ash insoluble in hydrochloric acid	Obsolete
GB/T 9825-1988	199	Add to Cart	2 days	Method for determination of hydrochloric acid insoluble ash in oilseed residues	Obsolete

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Basic data

Standard ID: GB/T 9825-2008 (GB/T9825-2008)
Description (Translated English): Oilseed residues -- Determination of ash insoluble in hydrochloric acid
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.200
Word Count Estimation: 6,681
Date of Issue: 2008-11-04
Date of Implementation: 2009-01-20
Older Standard (superseded by this standard): GB/T 9825-1988
Adopted Standard: ISO 735-1977, MOD
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 determination of oilseed hydrochloric acid insoluble ash. This standard applies to crushing method or leaching method to extract oil from the oil after measuring meal (except composite product) in hydrochloric acid insoluble ash content.

GB/T 9825-2008: Oilseed residues -- Determination of ash insoluble in hydrochloric acid

---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.
Oilseed residues. Determination of ash insoluble in hydrochloric acid ICS 67.200 X04 National Standards of People's Republic of China Replacing GB/T 9825-1988 Oilseed cake - Determination of insoluble ash content in hydrochloric acid (ISO 735. 1977, MOD) 2008-11-04 released 2009-01-20 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This revised standard adopts ISO 735. 1977 "Determination of insoluble cake of hydrochloric acid in oil cake" (in English). The main technical differences between this standard and ISO 735. 1977 are as follows. --- Increasing the reagent preparation method; --- 6.4 amendments to the requirements of Ma Fu furnace; --- The 7.2 "in two consecutive weighing difference is less than or equal to 0.001g" was revised to "the difference between two consecutive weighing less than or equal to 0.002g "; --- 8.1.2 hydrochloric acid insoluble ash dry basis timing formula was integrated. For ease of use, this standard made the following editorial changes. --- "This International Standard" be replaced by "this standard"; --- Use the decimal point "." Instead of as a decimal point comma ","; --- Removed the foreword of international standards. This standard replaces GB/T 9825-1988 "Determination of insoluble cake of hydrochloric acid cake oil." This standard compared with GB/T 9825-1988 main changes are as follows. --- Added "normative references" and "test report" item; --- Increasing the requirements of the results of the judgment; --- Standardize the value, quantity and units of expression used; --- The 7.2 "in two consecutive weighing difference is less than or equal to 0.001g" was revised to "the difference between two consecutive weighing less than or equal to 0.002g ". This standard proposed by the State Food Administration. This standard by the National Grain and Oil Standardization Technical Committee. This standard was drafted. Hubei Entry-Exit Inspection and Quarantine of the People's Republic of China. The main drafters of this standard. Cui Hairong, Lingyao Tao, Guo Jian, Yang Shunfeng, Zhu Yi Philippines, Ye Cheng. This standard replaces the standards previously issued as follows. --- GB/T 9825-1988. Oilseed cake - Determination of insoluble ash content in hydrochloric acid

1 Scope

This standard specifies the method of determination of insoluble ash content in oil cake. This standard applies to the press method or leaching method Extraction of oil from the oil, the cake (except for the composite product) hydrochloric acid insoluble ash content Determination.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. All dated references, which are subsequently owned Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to reach an agreement based on this standard research Whether you can use the latest versions of these files. For undated references, the latest version applies to this standard. GB/T 6682 analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 9824 Determination of total ash content in oil cake (GB/T 9824-2008, ISO 749. 1977, Oilseedresidues- Determinationoftotalash, MOD) GB/T 10358 Determination of moisture content and volatile matter content of oil cake (GB/T 10358-2008, ISO 771. 1977, IDT)

3 definition

The following terms and definitions apply to this standard. 3.1 Under the operating conditions described in this standard, the total ash after treatment with hydrochloric acid retained insoluble parts.

4 principle

The total ash is treated with hydrochloric acid to remove the soluble fraction, and the undissolved residue is then burned and weighed.

5 reagent

Unless otherwise specified, the reagents used are of analytical grade. The water used shall meet the requirements of Class III water in GB/T 6682. 5.1 3mol/L hydrochloric acid solution. amount of concentrated hydrochloric acid 27mL, diluted with water to 100mL. 5.2 10g/L silver nitrate solution. Weigh silver nitrate 1.0g, dissolved in water and diluted to 100mL, mix well, protected from light.

6 instruments and appliances

6.1 Analytical Balance. Dividing value 0.1mg. 6.2 Flat-bottomed ashing dish. diameter of about 60mm, height not exceeding 25mm, the material is platinum, platinum alloy, quartz or porcelain. 6.3 Quantitative filter paper. medium speed, ash-free. 6.4 Mufu furnace. temperature control at 550 ℃ ± 15 ℃. 6.5 Dryer. Contains effective desiccant.

7 operating procedures

All weighing should be accurate to 0.001g. ......

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