DIN EN 14105-2011 Fat and oil derivatives - Fatty Acid Methyl Esters (FAME) - Determination of free and total glycerol and mono- di- triglyceride contents German version EN 14105 2.pdf
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1、July 2011 Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 6
2、7.200.10!$s3“1805816www.din.deDDIN EN 14105Fat and oil derivatives Fatty Acid Methyl Esters (FAME) Determination of free and total glycerol and mono-, di-, triglyceridecontentsEnglish translation of DIN EN 14105:2011-07Erzeugnisse aus pflanzlichen und tierischen Fetten und len Fettsure-Methylester (
3、FAME) Bestimmung des Gehaltes an freiem und Gesamtglycerin und Mono-, Di- undTriglyceridenEnglische bersetzung von DIN EN 14105:2011-07Produits drivs des corps gras Esters mthyliques dacides gras (EMAG) Dtermination de la teneur en glycrols libre et total et en mono-, di- et triglycridesTraduction a
4、nglaise de DIN EN 14105:2011-07SupersedesDIN EN 14105:2003-10www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.2307.11 DIN EN 14105:2011-07 A comma is used as the decimal marker. National foreword This standard has been prepared by T
5、echnical Committee CEN/TC 307 “Oilseeds, vegetable and animal fats and oils and their by-products Methods of sampling and analysis” (Secretariat: AFNOR, France) in collaboration with Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and
6、biological origin” (Secretariat: NEN, Netherlands). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-06-32-01 UA Prfung von FAME of the Fachausschuss Minerall- und Brennstoffnormung in col
7、laboration with the Normenausschuss Lebensmittel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Working Committee NA 057-05-05 AA Gemeinschaftsausschuss fr die Analytik von Fetten, len, Fettprodukten, verwandten Stoffen und Rohstoffen. Amendments This standard
8、 differs from DIN EN 14105:2003-10 as follows: a) the method has been updated to obtain better precision; b) a number of separate internal standards for mono- (C19), di- (C38) and triglycerides (C57) have been included; c) representative internal standards for monoglycerides, diglycerides and trigly
9、cerides are now used in order to avoid using calibration solutions for these families of compounds; d) the integration of the peaks has been improved; e) some evaluation of interference with minor components (i.e. dimers) has been done; f) performance criteria for the gas chromatography column calcu
10、lated with the response factors for the diglyceride and triglyceride internal standards have been introduced. Previous editions DIN EN 14105: 2003-10 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14105 April 2011 ICS 67.200.10 Supersedes EN 14105:2003English Version Fat and oil derivatives
11、- Fatty Acid Methyl Esters (FAME) - Determination of free and total glycerol and mono-, di-, triglyceride contents Produits drivs des corps gras - Esters mthyliques dacides gras (EMAG) - Dtermination de la teneur en glycrols libre et total et en mono-, di- et triglycrides Erzeugnisse aus pflanzliche
12、n und tierischen Fetten und len - Fettsure-Methylester (FAME) - Bestimmung des Gehaltes an freiem und Gesamtglycerin und Mono-, Di- und Triglyceriden This European Standard was approved by CEN on 10 March 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
13、 the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Stand
14、ard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the nati
15、onal standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer
16、land and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
17、 14105:2011: EEN 14105:2011 (E) 2 Contents Page Foreword 31 Scope 42 Principle 43 Reagents .44 Apparatus .55 Preparation of solutions .65.1 1,2,4-Butanetriol stock solution, 1 mg/ml .65.2 Glycerol stock solution, 0,5 mg/ml 65.3 Standard glycerides stock solution, 2,5 mg/ml 65.4 Commercial mixture of
18、 monoglycerides .65.5 Calibration solutions .66 Sampling .77 Procedure .77.1 Operating conditions .77.2 Analysis of the calibration solutions .77.3 Analysis of the commercial mixture of monoglycerides .77.4 Preparation and analysis of the samples 87.5 Identification .87.6 Calibration 87.7 Column per
19、formance control .88 Determination of results .98.1 Integration of the peaks 98.2 Glycerol calibration function 98.3 Free glycerol .98.4 Glycerides 108.5 Total glycerol . 109 Expression of results . 1010 Precision 1010.1 Interlaboratory test . 1010.2 Repeatability 1110.3 Reproducibility 1111 Test re
20、port . 11Annex A (informative) Sample chromatogram 12Annex B (normative) Calibration function calculation . 16Annex C (informative) Worked example. 18Annex D (informative) Results of the interlaboratory trial . 19Bibliography . 21DIN EN 14105:2011-07 EN 14105:2011 (E) 3 Foreword This document (EN 14
21、105:2011) has been prepared by Technical Committee CEN/TC 307 “Oilseeds, vegetable and animal fats and oils and their by-products - Methods of sampling and analysis”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publica
22、tion of an identical text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at the latest by October 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC sh
23、all not be held responsible for identifying any or all such patent rights. This document supersedes EN 14105:2003. The main modifications of the standard are: - the utilization of representative internal standards for monoglycrides, diglycerides and triglycerides in order to avoid using calibration
24、solutions for these families of compounds; - the introduction of a performance criteria for the gas chromatography column calculated with the response factors for the diglyceride and triglyceride internal standards. The method has been updated to obtain better precision in general, needed for the li
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