SIST EN 12662:2008
(Main)Liquid petroleum products - Determination of contamination in middle distillates
Liquid petroleum products - Determination of contamination in middle distillates
This European Standard specifies a method for determining contamination as the content of undissolved substances in middle distillates, expressed as a mass fraction in milligrams/kilogram The scope of the revision of the existing EN 12662 is limited to the following:
- Use of a membrane inert to the use of FAME
- Increased sample volume
- Enhanced definition of procedure
- Use of more suitable sampling vessels to avoid loss
- Update of the precision statement
- Add information on RR study and validation study
Flüssige Mineralölerzeugnisse - Bestimmung der Verschmutzung in Mitteldestillaten
Diese Europäische Norm legt ein Verfahren zur Bestimmung der Verschmutzung als Gehalt an ungelösten Stoffen in Mitteldestilaten mit einem Anteil von bis zu 5 % (V/V) Fettsäuremethylester (en: fatty acid methyl ester; FAME) und in 100 % (V/V) FAME fest. Dieses Verfahren kann auf Verschmutzungsgehalte im Bereich von 6 mg/kg bis 30 mg/kgN ) angewendet werden.
ANMERKUNG 1 Eine starke Verschmutzung im Kraftstoffsystem kann zum frühzeitigen Verstopfen der Filter und/oder Geräteversagen führen und ist deshalb unerwünscht.
Dieses Verfahren gilt für flüssige Mineralölerzeugnisse mit einer kinematischen Viskosität nicht über 8 mm2/s bei 20 °C bzw. 5 mm2/s bei 40 °C, z. B. Dieselkraftstoffe nach EN 590 [1] oder leichtes Heizöl.
Obwohl die Präzision für dieses Prüfverfahren noch nicht bestimmt wurde, darf dieses Verfahren auf Mischungen, dessen Gehalt an FAME mehr als 5 % (V/V) beträgt, angewendet werden, genauso wie auf Mineralölerzeugnisse mit einer kinematischen Viskosität über 8 mm2/s bei 20 °C bzw. 5 mm2/s bei 40 °C.
ANMERKUNG 2 Für den Zweck dieser Europäischen Norm wird das Symbol % (V/V) verwendet, um Volumenanteile in % auszudrücken.
WARNUNG Die Anwendung dieser Norm kann den Einsatz gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Diese Norm gibt nicht vor, alle mit ihrer Anwendung verbundenen Sicher¬heitsprobleme anzusprechen. Der Anwender dieser Norm ist dafür verantwortlich, vorher ange¬messene Maßnahmen hinsichtlich Sicherheit und Gesundheit zu ergreifen und die Anwendbarkeit einschränkender Vorschriften zu ermitteln.
Produits pétroliers liquides - Détermination de la contamination des distillats moyens
La présente Norme européenne prescrit une méthode de détermination de la contamination, définie comme la
teneur en substances non dissoutes dans les distillats moyens contenant jusqu’à 5 % (V/V) d’esters
méthyliques d’acides gras (EMAG) et dans les EMAG purs. Cette méthode peut être appliquée pour des
teneurs en contaminant allant de 6 mg/kg jusqu’à 30 mg/kg.
NOTE 1 Une contamination excessive peut provoquer un encrassement prématuré des filtres et / ou une panne de la
mécanique et n'est par conséquent pas souhaitable.
Cette norme s'applique aux produits pétroliers liquides dont la viscosité cinématique ne dépasse pas 8 mm2/s
à 20 °C ou 5 mm2/s à 40 °C, par exemple les carburants pour moteurs diesel spécifiés dans la norme EN 590
[1] ou les fuels-oils légers.
Bien que la fidélité de la méthode d’essai n’ait pas été définie, la méthode décrite peut aussi être utilisée avec
des mélanges contenant des EMAG d’une teneur supérieure à 5 % ou avec les produits pétroliers dont la
viscosité est supérieure aux valeurs indiquées au paragraphe précédent.
NOTE 2 Pour les besoins de la présente norme européenne, l'expression « % (V/V) » est employée pour représenter
la fraction volumique.
AVERTISSEMENT - L'utilisation de la présente norme implique l'intervention de produits,
d'opérations et d'équipements à caractère dangereux. La présente Norme européenne n'est pas
censée aborder tous les problèmes de sécurité concernés par sa mise en oeuvre. Il est de la
responsabilité de l'utilisateur de consulter et d'établir des règles de sécurité et d'hygiène appropriées
et de déterminer l'applicabilité des restrictions réglementaires avant utilisation.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Liquid petroleum products - Determination of contamination in middle distillatesWLKProduits pétroliers liquides - Détermination de la contamination des distillats moyensFlüssige Mineralölerzeugnisse - Bestimmung der Verschmutzung in MitteldestillatenTa slovenski standard je istoveten z:EN 12662:2008SIST EN 12662:2008en,fr75.160.20ICS:SIST EN 12662:19991DGRPHãþDSLOVENSKI
STANDARDSIST EN 12662:200801-maj-2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12662March 2008ICS 75.160.20Supersedes EN 12662:1998
English VersionLiquid petroleum products - Determination of contamination inmiddle distillatesProduits pétroliers liquides - Détermination de lacontamination des distillats moyensFlüssige Mineralölerzeugnisse - Bestimmung derVerschmutzung in MitteldestillatenThis European Standard was approved by CEN on 24 February 2008.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 CEN Management Centre 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12662:2008: E
EN 12662:2008 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Principle.4 5 Reagents and materials.4 6 Apparatus.5 7 Preparation of sample containers and apparatus.6 8 Sampling.7 9 Preparation of the sample.7 10 Preparation of the equipment.8 10.1 Preparation of the filtering apparatus.8 10.2 Preparation of the filter.8 11 Procedure.8 11.1 Liquid petroleum products with a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C.8 11.2 Liquid petroleum products with a kinematic viscosity exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C.9 12 Calculation.9 13 Expression of results.9 14 Precision.9 14.1 Repeatability.9 14.2 Reproducibility.10 15 Test report.10 Bibliography.11
EN 12662:2008 (E) 3 Foreword This document (EN 12662:2008) 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 September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008. 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] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12662:1998. The major update of this document in comparison with the former edition is that filtration procedure has been updated in order to improve precision and scope. At this stage an interlaboratory study with field samples, following a study with artificial samples, is pending and therefore the repeatability and reproducibility have not yet been fully established, also because of some indications towards problems when the test method is applied to 100 % (V/V) FAME. CEN intends to revise this method when the results of the work on FAME (also at levels of 7 % and 10 %) will be known.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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 the United Kingdom.
EN 12662:2008 (E) 4 1 Scope This European Standard specifies a method for determining contamination as the content of undissolved substances in middle distillates containing up to 5 % (V/V) fatty acid methyl esters (FAME) and in 100 % (V/V) FAME. This method can be applied for contaminant content from 6 mg/kg to 30 mg/kg. NOTE 1 Excessive contamination in a fuel system can give rise to premature blocking of filters and / or hardware failure, and is therefore undesirable.
This standard applies to liquid petroleum products having a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, e.g. diesel fuel as specified in EN 590 [1] or light fuel oils.
Although the test method precision has not been defined, the method described may also be used for blends containing more than 5% (V/V) FAME and for petroleum products having a viscosity exceeding the above.
NOTE 2 For the purposes of this European Standard, the term "% (V/V)" is used to represent the volume fraction.
WARNING — Use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use. 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 14275, Automotive fuels – Assessment of petrol and diesel fuel quality - Sampling from retail site pumps and commercial site fuel dispensers EN ISO 3170, Petroleum liquids — Manual sampling (ISO 3170:2004) EN ISO 3171, Petroleum liquids - Automatic pipeline sampling (ISO 3171:1988) ISO 3819 Laboratory glassware - Beakers 3 Terms and definitions For the purposes of this standard, the following term and definition applies. contamination undissolved substances retained on a filter after filtration under test conditions 4 Principle A sample portion of 800 ml ± 25 ml is weighed and filtered under vacuum through a pre-weighed filter. The filter with the residue is washed, dried and weighed. Contamination is calculated from the difference in mass of the filter and expressed relative to the sample mass as mg/kg.
5 Reagents and materials 5.1 Heptane, with a purity no less than 99,0 % (V/V), filtered using a filter (membrane) with a mean pore size of 0,45 µm.
EN 12662:2008 (E) 5 NOTE Heptane used as a reference fuel in EN ISO 5164 is suitable. 5.2 Propan-2-ol, with a purity no less than 99,0 % (V/V).
NOTE Propan-2-ol is used to dry glassware and the sample container after rinsing with water.
6 Apparatus All glassware and sampling vessels to be carefully cleaned as described in Clause 7. Usual laboratory apparatus and glassware, together with the following:
6.1
Filter apparatus, suitable for a filter (6.2), as shown in Figure 1.
6.2
Filters, of high retention glass fibre type, 47 mm or 50 mm in diameter and with a 0,7 µm mean pore size. 6.3
Beakers, tall form 1 l, conforming with ISO 3819 or an equivalent national standard.
6.4
Oven, of the static type (without fan assisted circulation), explosion-proof, capable of heating to 110 °C ± 5 °C.
6.5
Desiccator, containing fresh
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