SIST EN 14538:2006

Fat and oil derivatives - Fatty acid methyl ester (FAME) - Determination of Ca, K, Mg and Na content by optical emission spectral analysis with inductively coupled plasma (ICP OES)

This document specifies a procedure for the direct determination of the soap building elements Calcium (Ca), Magnesium (Mg), Sodium (Na) and Potassium (K) in fatty acid methyl esters (FAME) by ICP OES at levels of about 1 mg/kg to 10 mg/kg.

Erzeugnisse aus pflanzlichen und tierischen Fetten und Ölen - Fettsäure-Methylester (FAME) - Bestimmung des Ca-, K-, Mg- und Na-Gehaltes durch optische Emissionsspektralanalyse mit induktiv gekoppeltem Plasma (ICP OES)

Dieses Dokument legt ein Verfahren fest zur direkten Bestimmung der Seifebilder Calcium (Ca), Magnesium (Mg), Natrium (Na) und Kalium (K) in Fettsäure-Methylester (FAME) mittels ICP OES im Bereich von etwa 1 mg/kg bis 10 mg/kg.

Produits dérivés des corps gras - Esters méthyliques d'acides gras (EMAG) - Détermination de la teneur en Ca, K, Mg et Na par spectrométrie d'émission optique avec plasma a couplage inductif (ICP OES)

Le présent document prescrit une méthode de dosage direct du calcium (Ca), du magnésium (Mg), du sodium (Na) et du potassium (K), éléments susceptibles de former des savons, dans les esters méthyliques d'acides gras (EMAG) par ICP OES et s'applique a des teneurs allant d'environ 1 mg/kg a 10 mg/kg.

Derivati maščob in olj – Metil estri maščobnih kislin (FAME) – Določevanje Ca, K, Mg in Na z optično emisijsko spektometrijo z induktivno sklopljeno plazmo (ICP OES)

General Information

• Status: Published
• Publication Date: 31-Aug-2006
• ICS: 67.200.10 - Animal and vegetable fats and oils
• Technical Committee: NAD - Petroleum products, lubricants and related products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2006
• Due Date: 01-Sep-2006
• Completion Date: 01-Sep-2006
• Ref Project: EN 14538:2006 - Fat and oil derivatives - Fatty acid methyl ester (FAME) - Determination of Ca, K, Mg and Na content by optical emission spectral analysis with inductively coupled plasma (ICP OES)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fat and oil derivatives - Fatty acid methyl ester (FAME) - Determination of Ca, K, Mg and Na content by optical emission spectral analysis with inductively coupled plasma (ICP OES)2(6Produits dérivés des corps gras - Esters méthyliques d'acides gras (EMAG) - Détermination de la teneur en Ca, K, Mg et Na par spectrométrie d'émission optique avec plasma a couplage inductif (ICP OES)Erzeugnisse aus pflanzlichen und tierischen Fetten und Ölen - Fettsäure-Methylester (FAME) - Bestimmung des Ca-, K-, Mg- und Na-Gehaltes durch optische Emissionsspektralanalyse mit induktiv gekoppeltem Plasma (ICP OES)Ta slovenski standard je istoveten z:EN 14538:2006SIST EN 14538:2006en67.200.10ICS:SLOVENSKI
STANDARDSIST EN 14538:200601-september-2006







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14538June 2006ICS 67.200.10 English VersionFat and oil derivatives - Fatty acid methyl ester (FAME) -Determination of Ca, K, Mg and Na content by optical emissionspectral analysis with inductively coupled plasma (ICP OES)Produits dérivés des corps gras - Esters méthyliquesd'acides gras (EMAG) - Détermination de la teneur en Ca,K, Mg et Na par spectrométrie d'émission optique avecplasma à couplage inductif (ICP OES)Erzeugnisse aus pflanzlichen und tierischen Fetten undÖlen - Fettsäure-Methylester (FAME) - Bestimmung vonCa, K, Mg und Na durch optischeEmissionsspektralanalyse mit induktiv gekoppeltemPlasma (ICP OES)This European Standard was approved by CEN on 10 May 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14538:2006: E



EN 14538:2006 (E)
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Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Principle.4 4 Chemicals.4 5 Apparatus.4 6 Sampling.5 7 Preparation of the calibration solutions and the blank solution.5 7.1 General.5 7.2 Blank solution.6 7.3 Calibration solution with a nominal element content of 0,5 mg/kg.6 7.4 Calibration solution with a nominal element content of 1 mg/kg.6 7.5 Calibration solution with a nominal element content of 5 mg/kg.6 7.6 Calibration solution with a nominal element content of 10 mg/kg.6 8 Calibration.6 8.1 General.6 8.2 Calibration.7 8.3 Check of calibration.7 9 Sample analysis.7 9.1 Sample preparation.7 9.2 Measurement.7 10 Calculation.7 11 Results.8 12 Precision.8 12.1 Repeatability.8 12.2 Reproducibility.8 13 Test report.8



EN 14538:2006 (E)
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Foreword This document (EN 14538:2006) has been prepared by Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin”, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, 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, Switzerland and United Kingdom.



EN 14538:2006 (E)
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1 Scope This document specifies a procedure for the direct determination of the soap building elements Calcium (Ca), Magnesium (Mg), Sodium (Na) and Potassium (K) in fatty acid methyl esters (FAME) by ICP OES at levels of about 1 mg/kg to 10 mg/kg. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 3170, Petroleum liquids - Manual sampling (ISO 3170:2004) EN ISO 3171, Petroleum liquids - Automatic pipeline sampling (ISO 3171:1988) 3 Principle An exactly weighed test portion is diluted with kerosene using a 1:1 weight ratio. The resulting solution is directly injected into the plasma of the ICP OES spectrometer. For reference and calibration purposes, calibration samples with known contents of the element(s) under investigation in the range of 0,5 mg/kg to 10 mg/kg are used. The sum of the content of Calcium and the content of Magnesium, and the sum of the content of Sodium and the content of Potassium are reported. 4 Chemicals Unless otherwise stated, only chemicals of recognized analytical quality shall be used. 4.1 Paraffin oil, low viscosity, Pharmacopeia (EUPHARM EP5), e.g. Merck 1071741)
4.2
Kerosene, boiling range included between 150 °C and 325 °C, e.g. Aldrich 32.946-01)
4.3 Element Standard solutions, dissolved in oil, 500 mg/kg per element. These are available as single element standards, like e.g. Merck 115053 (Ca), 115057 (Mg), 115054 (K) and 115058 (Na), or also at least partially as multi-element standards, (e.g. Spex)1). 4.4
Argon, with minimum purity w (Ar) = 99,996 % (V/V) 5 Apparatus Commercial laboratory and glass equipment, in conjunction with the following: 5.1
100 ml bottles with cap, preferably made of Polyethylene (PE), brown
5.2
250 ml bottles with cap, preferably made of Polyethylene (PE), brown
1)
Merck, Aldrich and Spex standards are examples of a suitable product available commercially. This information is given for the convenience of users of this standard and does not constitute an endorsement by CEN of these products.



EN 14538:2006 (E)
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NOTE In order to minimize pollution of the solutions, it is recommended to prepare all the determination solutions in polyethylene bott
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