GB/T 25224.2-2010 English PDFUS$194.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25224.2-2010: Animal and vegetable fats and oils -- Determination of stigmastadiene in vegetable oils -- Part 2: Method using high-performance liquid chromatography (HPLC) Status: Valid
Basic dataStandard ID: GB/T 25224.2-2010 (GB/T25224.2-2010)Description (Translated English): Animal and vegetable fats and oils -- Determination of stigmastadiene in vegetable oils -- Part 2: Method using high-performance liquid chromatography (HPLC) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: X14 Classification of International Standard: 67.200.10 Word Count Estimation: 10,117 Date of Issue: 2010-09-26 Date of Implementation: 2011-03-01 Quoted Standard: GB/T 6682; GB/T 25223 Adopted Standard: ISO 15788-2-2003, IDT Regulation (derived from): National Standard Approval Announcement 2010 No.6 (Total No.161) 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 HPLC diene sterols in vegetable oils, especially stigmasterol diene terminology, principle, reagents, equipment, sample preparation, steps, Results are expressed and precision requirements. Sterol diene is processed and bleached wash oil vapor, deodorizing process of the formation of sterols dehydration. This method is also applicable to the determination of whether the unrefined oils ever virgin vegetable oil refining screening methods exist olive oil. GB/T 25224.2-2010: Animal and vegetable fats and oils -- Determination of stigmastadiene in vegetable oils -- Part 2: Method using high-performance liquid chromatography (HPLC)---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. Animal and vegetable fats and oils Determination of stigmastadienes in vegetable oils Part 2. Method using high-performance liquid chromatography (HPLC) ICS 67.200.10 X14 National Standards of People's Republic of China Determination of animal fats in vegetable oils stigmasterol diene Part 2. High performance liquid chromatography Part 2. Methodusinghigh-performanceliquidchromatography (HPLC) (ISO 15788-2.2003, IDT) Issued on. 2010-09-26 2011-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard is identical with ISO 15788-2.2003 Determination of "animal fats in vegetable oils stigmasterol diene Part 2. high performance liquid Phase chromatography "(in English). For ease of use, the standard ISO 15788-2.2003 includes the following editorial changes. --- The "this International Standard" by "this standard"; --- Deleted international standards foreword; --- With a decimal point instead of the international standard as a decimal comma ",". ","; --- Normative documents referenced by the current national standard GB/T 6682 instead of ISO 3696. 1987, GB/T 25223 in place ISO 12228.1999; --- A number of formulas; --- On Priorities Chapter 5 reagents were adjusted. The Standard Appendix A, Appendix B is an informative annex. The standard proposed by the National Food Authority. This standard by the National Standardization Technical Committee OILS. This standard is drafted by. Nanjing University of Finance and Economics. Units involved in the drafting of this standard. State Administration of Grain Science Institute. The main drafters of this standard. Yuan Jian, Wang Haifeng, Wang Lifeng, OILS, Xue Yalin. Determination of animal fats in vegetable oils stigmasterol diene Part 2. High performance liquid chromatography1 ScopeThis standard specifies the Determination of vegetable oil sterol diene, especially in terms stigmasterol diene, principle, reagents, instruments provided Equipment, sample preparation, procedure, results are shown and precision requirements. Sterol diene is oil processing and washing bleach steam deodorizing process by sterol dehydration formation. The method is also applicable to Determination of whether or not refined as ever virgin vegetable oil refining method of screening for the presence of olive oil. NOTE. ISO 15788-1 is the reference method for the determination in vegetable oils stigmasterol diene, and the method can be used as a rapid screening method. Its precision (see attached Record A) Available ISO 15788-1 predetermined gas liquid chromatography to verify. For virgin olive oil samples, close to the international organizations (IOOC, EC) Regulation Predetermined limit.2 Normative referencesThe 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/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 25223 Animal and vegetable fats sterol composition and total sterols determined by gas chromatography (GB/T 25223-2010, ISO 12228.1999, IDT)3 Terms and definitionsThe following terms and definitions apply to this standard. 3.1 Stigmasterol diene content stigmastadienescontent This standard specifies the conditions, the determination by liquid chromatography stigmasterol diene. In milligrams per kilogram (mg/kg) Fig. 3.2 Sterol diene content steradienescontent This standard specifies the conditions, the determination by liquid chromatography of all sterol diene. In milligrams per kilogram (mg/kg) Fig. Principle 4 Silica gel column using petroleum ether as the sterol diene non-polar lipid component separated from the lipids in petroleum ether eluate was concentrated After the reduction, detection at 235nm by reverse phase high performance liquid chromatography UV detector. Category according to the sample can be quantified by the internal standard or external standard Quantified.5 ReagentsWarning. be aware of dangerous goods operational rules, and follow the technical, organizational and personal safety practices. Unless otherwise noted, use the analytical reagent. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25224.2-2010_English be delivered?Answer: Upon your order, we will start to translate GB/T 25224.2-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 25224.2-2010_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 25224.2-2010_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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