SIST EN 12662-2:2024
(Main)Liquid petroleum products - Determination of total contamination - Part 2: Fatty acid methyl esters
Liquid petroleum products - Determination of total contamination - Part 2: Fatty acid methyl esters
This document specifies a method for the determination of the content of undissolved substances, referred to as total contamination, in neat fatty acid methyl esters (FAME). The working range is from 5 mg/kg to 27 mg/kg and it was established in an interlaboratory study by applying EN ISO 4259-1 [1].
This document in general is applicable to FAME having a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, e.g. as specified in EN 14214 [2].
This test method can be used for FAME having a kinematic viscosity exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, however in such cases the precision of the test method has not been determined.
NOTE For the purposes of this document, the term “% (V/V)” is used to represent the volume fraction, φ, of a material.
WARNING - The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Flüssige Mineralölerzeugnisse - Bestimmung der Gesamtverschmutzung — Teil 2 : Fettsäuremethylester
Dieses Dokument legt ein Verfahren zur Bestimmung des Gehalts an ungelösten Stoffen, bezeichnet als Gesamtverschmutzung, in reinem Fettsäure-Methylester (FAME, en: fatty acid methyl ester) fest. Der Arbeitsbereich liegt zwischen 5 mg/kg und 27 mg/kg und wurde anhand von Ringversuchen unter Anwendung von EN ISO 4259-1 [1] festgelegt.
Dieses Dokument ist im Allgemeinen anwendbar für FAME mit einer kinematischen Viskosität nicht größer als 8 mm2/s bei 20 °C bzw. nicht größer als 5 mm2/s bei 40 °C, z. B. wie in EN 14214 [2] festgelegt.
Dieses Prüfverfahren kann für FAME mit einer kinematischen Viskosität größer als 8 mm2/s bei 20 °C bzw. größer als 5 mm2/s bei 40 °C eingesetzt werden. Für diese Fälle wurde die Präzision des Prüfverfahrens allerdings noch nicht ermittelt.
ANMERKUNG Für die Zwecke dieses Dokuments wird zur Angabe des Volumenanteils φ einer Substanz der Ausdruck „% (V/V)“ verwendet.
WARNUNG - Die Anwendung dieses Dokuments kann die Anwendung gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Dieses Dokument beansprucht nicht, alle damit verbundenen Sicherheitsprobleme zu behandeln. Es liegt in der Verantwortung der Person, die das Dokument anwendet, vor der Anwendung geeignete Maßnahmen für die Sicherheit und den Gesundheitsschutz zu ergreifen, und die Geltung weiterer diesbezüglicher Auflagen zu prüfen.
Produits pétroliers liquides - Détermination de la contamination totale — Partie 2 : Esters méthyliques d’acides gras
Le présent document spécifie une méthode de détermination de la teneur en substances non dissoutes, référencée comme contamination totale, dans les esters méthyliques d’acides gras (EMAG) purs. Le domaine d’application s’étend sur un intervalle de teneurs en contaminants allant de 5 mg/kg à 27 mg/kg ; celui-ci a été établi au moyen d’une étude interlaboratoires conformément à l’EN ISO 4259-1 [1].
D’une manière générale, le présent document est applicable aux EMAG dont la viscosité cinématique ne dépasse pas 8 mm2/s à 20 C ou 5 mm2/s à 40 C, par exemple tels que spécifiés dans la norme EN 14214 [2].
Cette méthode d’essai peut être utilisée sur des EMAG dont la viscosité cinématique est supérieure à 8 mm2/s à 20 °C ou 5 mm2/s à 40 °C, cependant, dans de tels cas, les valeurs de fidélité concernant cette méthode n’ont pas été déterminées.
NOTE Pour les besoins du présent document, l'expression « % (V/V) » est employée pour représenter la fraction volumique, φ, d’un produit.
AVERTISSEMENT - L'utilisation du présent document peut impliquer l'intervention de produits, d'opérations et d'équipements à caractère dangereux. Ce document n'est pas censé aborder tous les problèmes de sécurité concernés par sa mise en œuvre. 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.
Tekoči naftni proizvodi - Določanje celokupnih nečistoč - 2. del: Metilni estri maščobnih kislin
Ta dokument določa metodo za določanje vsebnosti neraztopljenih snovi (celokupnih nečistoč) v čistih metilnih estrih maščobnih kislin (FAME). Delovno območje je od 5 do 30 mg/kg in je bilo določeno z medlaboratorijsko študijo z uporabo standarda EN ISO 4259-1 [1].
Ta evropski standard se v splošnem uporablja za proizvode s kinematično viskoznostjo, manjšo od 8 mm2/s pri 20 °C oziroma 5 mm2/s pri 40°C, kot so metilni estri maščobnih kislin iz standarda EN 14214 [2].
General Information
- Status
- Published
- Public Enquiry End Date
- 31-Jan-2023
- Publication Date
- 10-Jul-2024
- Technical Committee
- NAD - Petroleum products, lubricants and related products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 12-Jun-2024
- Due Date
- 17-Aug-2024
- Completion Date
- 11-Jul-2024
Relations
- Effective Date
- 01-Sep-2024
Overview
EN 12662-2:2024 - Liquid petroleum products - Determination of total contamination - Part 2: Fatty acid methyl esters (FAME) - is a CEN standard that specifies a vacuum filtration method to determine the total contamination (undissolved substances) in neat FAME. The validated working range is 5 mg/kg to 27 mg/kg, based on an interlaboratory study using EN ISO 4259-1. The method is primarily applicable to FAME with a kinematic viscosity ≤ 8 mm²/s at 20 °C or ≤ 5 mm²/s at 40 °C (for example as specified in EN 14214). Use beyond these viscosity limits is possible, but precision has not been established.
Key topics and technical requirements
- Principle: Weigh a test portion, filter under vacuum through a pre‑weighed glass-fibre filter, wash, dry and reweigh. Calculate contamination as mg/kg.
- Working range & precision: 5–27 mg/kg; precision was determined by an interlaboratory study (EN ISO 4259-1).
- Sample preparation: Heat neat FAME to 60 °C for ≥2 h to re-dissolve separated components, then homogenize by manual shaking (specified strokes and timings).
- Filtration & equipment:
- Glass-fibre filters, 47 mm diameter, ~0.7 μm mean pore size (e.g., Whatman GF‑F noted as suitable).
- Filtration apparatus capable of absolute pressure 2–5 kPa (vacuum source), static oven (110 ± 5 °C), desiccator, analytical balance (0.1 mg).
- Reagents: heptane (≥99.0 % V/V) and propan-2-ol (≥99.0 % V/V).
- Cleaning & contamination control: Strict cleaning of sample containers and apparatus (detergent, water, propan-2-ol, heptane) and handling in a clean environment to avoid artefacts at low contamination levels.
- Sampling: Follow EN ISO 3170 (manual) or EN ISO 3171 (automatic pipeline) sampling procedures; use glass containers, protect from light, fill 80–85 % capacity.
- Safety: The document includes a warning about hazardous materials and operations; users must ensure appropriate safety practices.
Applications
- Routine quality control of biodiesel (neat FAME) production and storage.
- Acceptance testing for supplied FAME batches to prevent premature filter blockage and hardware failure in fuel systems.
- Laboratory testing for compliance, troubleshooting particulate-related engine or filter issues, and monitoring storage stability.
- Useful for fuel producers, independent test laboratories, engine manufacturers, fuel distributors and regulatory bodies.
Who should use this standard
- Fuel testing laboratories and QA/QC teams in biodiesel production
- Petroleum product certifiers and conformity assessors
- Engine and filter manufacturers evaluating fuel cleanliness
- Regulatory authorities and procurement teams specifying fuel quality
Related standards
- EN 14214 (FAME biodiesel specification)
- EN ISO 3170 / EN ISO 3171 (sampling of petroleum liquids)
- EN ISO 4259-1 (statistical analysis/precision evaluation)
- Supersedes EN 12662:2014 (method split into Part 1 and Part 2)
Frequently Asked Questions
SIST EN 12662-2:2024 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Liquid petroleum products - Determination of total contamination - Part 2: Fatty acid methyl esters". This standard covers: This document specifies a method for the determination of the content of undissolved substances, referred to as total contamination, in neat fatty acid methyl esters (FAME). The working range is from 5 mg/kg to 27 mg/kg and it was established in an interlaboratory study by applying EN ISO 4259-1 [1]. This document in general is applicable to FAME having a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, e.g. as specified in EN 14214 [2]. This test method can be used for FAME having a kinematic viscosity exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, however in such cases the precision of the test method has not been determined. NOTE For the purposes of this document, the term “% (V/V)” is used to represent the volume fraction, φ, of a material. WARNING - The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
This document specifies a method for the determination of the content of undissolved substances, referred to as total contamination, in neat fatty acid methyl esters (FAME). The working range is from 5 mg/kg to 27 mg/kg and it was established in an interlaboratory study by applying EN ISO 4259-1 [1]. This document in general is applicable to FAME having a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, e.g. as specified in EN 14214 [2]. This test method can be used for FAME having a kinematic viscosity exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, however in such cases the precision of the test method has not been determined. NOTE For the purposes of this document, the term “% (V/V)” is used to represent the volume fraction, φ, of a material. WARNING - The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
SIST EN 12662-2:2024 is classified under the following ICS (International Classification for Standards) categories: 75.160.20 - Liquid fuels. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 12662-2:2024 has the following relationships with other standards: It is inter standard links to SIST EN 12662:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 12662-2:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2024
Nadomešča:
SIST EN 12662:2014
Tekoči naftni proizvodi - Določanje celokupnih nečistoč - 2. del: Metilni estri
maščobnih kislin
Liquid petroleum products - Determination of total contamination - Part 2: Fatty acid
methyl esters
Flüssige Mineralölerzeugnisse - Bestimmung der Gesamtverschmutzung — Teil 2 :
Fettsäuremethylester
Produits pétroliers liquides - Détermination de la contamination totale — Partie 2 : Esters
méthyliques d’acides gras
Ta slovenski standard je istoveten z: EN 12662-2:2024
ICS:
75.160.20 Tekoča goriva Liquid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12662-2
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2024
EUROPÄISCHE NORM
ICS 75.160.20; 75.160.40 Supersedes EN 12662:2014
English Version
Liquid petroleum products - Determination of total
contamination - Part 2: Fatty acid methyl esters
Produits pétroliers liquides - Détermination de la Flüssige Mineralölerzeugnisse - Bestimmung der
contamination totale - Partie 2 : Esters méthyliques Gesamtverschmutzung - Teil 2: Fettsäure-Methylester
d'acides gras
This European Standard was approved by CEN on 8 April 2024.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate 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 Standard 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 national 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12662-2:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Reagents and materials . 6
6 Equipment . 6
7 Cleansing of sample containers and filtration apparatus . 7
8 Sampling . 8
9 Preparation of the test portion . 8
9.1 General. 8
9.2 Neat FAME . 8
10 Preparation of the equipment . 9
10.1 Preparation of the filtration apparatus . 9
10.2 Preparation of the filter . 9
11 Procedure . 10
12 Calculation . 11
13 Expression of results . 11
14 Precision . 11
14.1 General. 11
14.2 Repeatability . 11
14.3 Reproducibility . 11
15 Test report . 12
Bibliography . 13
European foreword
This document (EN 12662-2:2024) 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 2024, and conflicting national standards shall
be withdrawn at the latest by December 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12662:2014.
In comparison with the previous edition, the following technical modifications have been made:
— split of the scope of the previous edition in two parts, with Part 2 covering the neat FAME in this
document and with Part 1 covering the middle distillates and the diesel fuels containing up to
30 % (V/V) of fatty acid methyl ester (FAME) in a separate document.
— update of the precision data following the statistical analysis [4] of the interlaboratory tests data
according to EN ISO 4259-1:2017 [1].
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
Excessive contamination in a fuel system can give rise to premature blocking of filters and/or hardware
failure, and is therefore undesirable. The determination of the content of undissolved substances,
referred to as total contamination, is a way to control this issue.
In the previous version of this method, the scope was covering middle distillates, diesel fuels containing
up to 30 % (V/V) of FAME and neat FAME. It was found that the improvement sought in 2014, give
problems in the lab in testing FAME and correlate the results to those obtained with the previous version
of the method. A solution has been found, which resulted in splitting the methodology in two parts: to
include the previous version as Part 1 and to develop a separate standard for neat FAME as Part 2.
An interlaboratory study was conducted to determine the valid precision of the method for determining
total contamination in neat FAME according to this document.
1 Scope
This document specifies a method for the determination of the content of undissolved substances,
referred to as total contamination, in neat fatty acid methyl esters (FAME). The working range is from
5 mg/kg to 27 mg/kg and it was established in an interlaboratory study by applying EN ISO 4259-1 [1].
This document in general is applicable to FAME having a kinematic viscosity not exceeding 8 mm /s at
20 °C, or 5 mm /s at 40 °C, e.g. as specified in EN 14214 [2].
This test method can be used for FAME having a kinematic viscosity exceeding 8 mm /s at 20 °C, or
5 mm /s at 40 °C, however in such cases the precision of the test method has not been determined.
NOTE For the purposes of this document, the term “% (V/V)” is used to represent the volume fraction, φ, of a
material.
WARNING — The use of this document can involve hazardous materials, operations and equipment. This
document does not purport to address all of the safety problems associated with its use. It is the
responsibility of the user of this document to establish appropriate safety and health practices and
determine the applicability of regulatory limitations prior to use.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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)
EN ISO 3171, Petroleum liquids — Automatic pipeline sampling (ISO 3171)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org
3.1
total contamination
undissolved substances retained on a filter after filtration under test conditions
3.2
absolute pressure
pressure measured relative to zero pressure or a total vacuum
4 Principle
A sample portion 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 membrane filter (6.17).
NOTE Heptane used as a reference fuel in EN ISO 5164 [3] 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 Equipment
All glassware and sample containers shall be carefully cleaned as described in Clause 7.
Usual laboratory apparatus and glassware, together with the following:
6.1 Filtration apparatus, suitable for a filter (6.2), as shown in Figure 1. A different filtration
apparatus may be used if it is suitable to take the filters given in 6.2.
6.2 Filters, of high retention glass fibre type, 47 mm in diameter and with a 0,7 μm mean pore size.
NOTE Glass fibre filters Whatman GF-F type have been found suitable for total contamination measurements.
This information is given for the convenience of users of this document and does not constitute an endorsement by
CEN of this product.
6.3 Beakers, tall form 0,5 l and 1 l.
6.4 Cylinders, 500 ml and 1 000 ml graduated cylinders.
6.5 Glass bottles, 0,5 l and 1 l, with screw caps.
6.6 Oven, of the static type (without fan assisted circulation), explosion-proof, capable of heating to
(110 ± 5) °C.
6.7 Desiccator, containing freshly activated silica gel (or equivalent desiccant) with a moisture content
indicator.
6.8 Glass Petri dishes with covers, greater than 50 mm in diameter or an equivalent alternative to
handling the filter, which is FAME and temperature resistant, for example an aluminium bowl.
6.9 Analytical balance, capable of weighing to the nearest 0,1 mg.
6.10 Forceps, with roun
...
SIST EN 12662-2:2024 표준 문서는 액체 석유 제품의 총 오염도를 결정하는 방법을 규정하고 있으며, 특히 지방산 메틸 에스터(FAME)에 중점을 두고 있습니다. 이 문서의 범위는 5 mg/kg에서 27 mg/kg의 범위 내에서 미용해 물질의 함량을 측정하는 방법을 명확히 하며, 이는 EN ISO 4259-1을 적용하여 수행된 interlaboratory 연구에 의해 설정되었습니다. 이 표준의 강점은 FAME의 운동 점도가 20 °C에서 8 mm²/s 또는 40 °C에서 5 mm²/s를 초과하지 않는 경우에 일반적으로 적용 가능하다는 점입니다. 이는 산업 실무에서 흔히 사용되는 FAME의 특성을 반영하고 있으며, 품질 보증을 위한 신뢰할 수 있는 검사 방법을 제공합니다. 또한, 이 검정 방법은 특정 조건에서 (운동 점도가 8 mm²/s 또는 5 mm²/s를 초과하는 경우) 사용할 수 있지만, 그러한 경우의 정확성은 확인되지 않았다는 점도 주목할 필요가 있습니다. 이 문서에서는 물질의 부피 분율을 나타내기 위해 "% (V/V)"라는 용어를 사용하는데, 이는 사용자에게 FAME의 오염 수준을 이해하고 평가하는 데 도움이 됩니다. 그러나 부모의 안전을 위한 경고가 포함되어 있으며, 문서에서 다루는 모든 안전 문제를 언급하고 있지 않음을 명시하고 있습니다. 따라서 이 표준의 사용자는 적절한 안전 및 건강 관행을 마련하고 규제 제한 사항이 적용될 수 있는지를 판단할 책임이 있습니다. 이처럼 SIST EN 12662-2:2024 표준은 FAME의 품질 평가 및 오염도 분석을 위한 필수적이고 신뢰할 수 있는 지침을 제공하여, 석유 산업 관련 종사자에게 매우 중요한 참고 문서가 됩니다.
La norme SIST EN 12662-2:2024 se concentre sur la détermination de la contamination totale dans les esters méthyliques d'acides gras (FAME), et elle constitue un élément essentiel pour assurer la qualité des produits pétroliers liquides. Cette norme spécifie une méthode rigoureuse pour évaluer le contenu de substances non dissoutes dans des FAME purs, avec une plage de travail établie de 5 mg/kg à 27 mg/kg, déterminée à travers une étude interlaboratoires conforme à la norme EN ISO 4259-1. Un des points forts de cette norme est son applicabilité à des FAME présentant une viscosité cinématique ne dépassant pas 8 mm²/s à 20 °C ou 5 mm²/s à 40 °C, conformément à ce qui est précisé dans la norme EN 14214. Cela permet une large utilisation de la méthode dans l'industrie, garantissant que les utilisateurs peuvent obtenir des résultats fiables et valides concernant la pureté des esters méthyliques, un aspect crucial pour la performance des carburants. De plus, bien que la méthode puisse également être appliquée à des FAME ayant une viscosité cinématique supérieure, il est essentiel de noter que la précision de la méthode dans ces cas n'a pas été déterminée, ce qui pourrait inciter les utilisateurs à faire preuve de prudence lorsqu'ils évaluent des échantillons en dehors des spécifications standards. Ce point met en lumière l'importance d'une compréhension approfondie du champ d'application de la norme pour éviter des interprétations erronées. La formalisation de pratiques de sécurité est aussi intégrée dans le document. Un avertissement est émis concernant les matériaux dangereux, les opérations et l'équipement, soulignant la responsabilité des utilisateurs de définir des pratiques de sécurité appropriées. Cela renforce l'importance de la conformité non seulement à la norme elle-même, mais aussi aux normes de santé et de sécurité. En résumé, la norme SIST EN 12662-2:2024 est un document de référence critique qui assure une méthodologie adéquate pour l'évaluation de la contamination totale dans les esters méthyliques d'acides gras, offrant une garantie de qualité et de sécurité dans le traitement des produits pétroliers liquides. Sa pertinence et son application dans l'industrie en font un outil indispensable pour les professionnels du secteur.
Die Norm SIST EN 12662-2:2024 legt eine präzise Methode zur Bestimmung des Gehalts an ungelösten Stoffen, auch als Gesamtkontamination bekannt, in reinen Fettsäuremethylestern (FAME) fest. Der Anwendungsbereich dieser Norm umfasst FAME mit einer kinematischen Viskosität von maximal 8 mm²/s bei 20 °C oder 5 mm²/s bei 40 °C, was in Übereinstimmung mit EN 14214 spezifiziert wird. Eine der wesentlichen Stärken dieser Norm ist die fundierte Grundlage, die durch eine Interlaborstudie geschaffen wurde, in der der Arbeitsbereich von 5 mg/kg bis 27 mg/kg ermittelt wurde. Dies gewährleistet die Zuverlässigkeit und Effizienz der Methode zur Bestimmung der Gesamtkontamination in FAME. Für FAME mit einer kinematischen Viskosität, die über die angegebenen Grenzen hinausgeht, kann zwar auch diese Prüfmethodik angewendet werden, jedoch wurde in diesen Fällen die Präzision nicht bestimmt, was einen potenziellen Nachteil darstellt. Die Norm betont auch die Sicherheitshinweise, die beim Umgang mit gefährlichen Materialien, Operationen und Geräten zu beachten sind. Es wird darauf hingewiesen, dass die Nutzung dieser Norm die Verantwortung des Benutzers für die Etablierung geeigneter Sicherheits- und Gesundheitspraktiken sowie die Überprüfung der Anwendbarkeit regulatorischer Beschränkungen erfordert. Diese Aspekte sind notwendig, um die Sicherheit bei der Umsetzung der Norm zu gewährleisten. Insgesamt ist die SIST EN 12662-2:2024 von großer Bedeutung für die Analyse von Fettsäuremethylestern, da sie eine standardisierte Methode bietet, die sowohl die Qualitätssicherung als auch die Sicherheit in der Handhabung von FAME berücksichtigt. Die Norm trägt somit zur Harmonisierung der Prüfmethoden in der Branche bei und fördert die Genauigkeit und Konsistenz der Ergebnisse.
The SIST EN 12662-2:2024 standard provides a comprehensive methodology for the determination of total contamination in liquid petroleum products, specifically focusing on fatty acid methyl esters (FAME). The scope of the standard is clearly defined, allowing for the quantification of undissolved substances within a specified working range of 5 mg/kg to 27 mg/kg, determined through rigorous interlaboratory studies in alignment with EN ISO 4259-1. One of the notable strengths of this document lies in its clear applicability to FAME with kinematic viscosities not exceeding 8 mm²/s at 20 °C or 5 mm²/s at 40 °C, as referenced in EN 14214. This specificity ensures that users can confidently apply the standard to a wide array of FAME products that comply with these viscosity criteria. Furthermore, the standard acknowledges FAME with higher viscosity, albeit with the caveat that precision in testing has not been established for such cases, effectively guiding users regarding the limitations of the method when necessary. The systematic approach to identify and quantify total contamination in FAME contributes significantly to the quality control processes in fuel production and ensures that industry stakeholders have access to a reliable reference for testing. Additionally, the standard emphasizes the importance of safety precautions, clearly stating potential hazards associated with using this standard, and reinforcing the responsibility of users to implement proper health and safety measures. In conclusion, SIST EN 12662-2:2024 serves as a vital tool for the oil and gas sector, promoting enhanced understanding of FAME quality and paving the way for improved regulatory compliance and product performance monitoring. Its focused scope, robust methodological framework, and acknowledgment of safety concerns solidify its relevance in the contemporary context of evaluating liquid petroleum products.
SIST EN 12662-2:2024は、液体石油製品の完全汚染の測定に関する重要な標準文書です。この文書は、純粋な脂肪酸メチルエステル（FAME）における不溶性物質の含有量、すなわち総汚染を定量するための方法を規定しています。特に、対象とする測定範囲は5 mg/kgから27 mg/kgであり、この範囲はEN ISO 4259-1の適用による国際的な共同研究によって確立されています。 この標準は、20℃での運動粘度が8 mm²/sを超えない、または40℃での運動粘度が5 mm²/sを超えないFAMEに広く適用されます。これにより、FAMEの品質管理が確実に行えることが強調されています。また、運動粘度が指定の範囲を超える場合でも、この試験法を使用することが可能ですが、その際の精度は確認されていない点には注意が必要です。 文書内では「% (V/V)」が物質の体積分率φを表すために使用されていることも記載されており、これは測定結果の解釈において重要な要素となります。さらに、標準の使用に際しては危険物や操作、装置が関与する可能性があるため、使用者は適切な安全衛生対策を講じる責任があります。このように、SIST EN 12662-2:2024は液体石油製品に関する重要な測定基準を提供しており、業界におけるFAMEの品質保証の信頼性を高めるために重要な役割を果たします。
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