EN 12916:2019/prA1
(Amendment)Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection
Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection
This document specifies a test method for the determination of the content of mono-aromatic, di-aromatic and tri+-aromatic hydrocarbons in diesel fuels, paraffinic diesel fuels and petroleum distillates.
This document defines two procedures, A and B.
Procedure A is applicable to diesel fuels that may contain fatty acid methyl esters (FAME) up to 30 % (V/V) (as in [1], [2] or [3]) and petroleum distillates in the boiling range from 150 °C to 400 °C (as in [4].
Procedure B is applicable to paraffinic diesel fuels with up to 7 % (V/V) FAME. This procedure does not contain a dilution of the sample in order to determine the low levels of aromatic components in these fuels.
The polycyclic aromatic hydrocarbons content is calculated from the sum of di-aromatic and tri+-aromatic hydrocarbons and the total content of aromatic compounds is calculated from the sum of the individual aromatic hydrocarbon types.
Compounds containing sulfur, nitrogen and oxygen can interfere in the determination; mono-alkenes do not interfere, but conjugated di-alkenes and poly-alkenes, if present, can do so.
NOTE 1 For the purpose of this European Standard, the terms "% (m/m)" and "% (V/V)" are used to represent the mass fraction, µ, and the volume fraction, φ, of a material respectively.
NOTE 2 By convention, the aromatic hydrocarbon types are defined on the basis of their elution characteristics from the specified liquid chromatography column relative to model aromatic compounds. Their quantification is performed using an external calibration with a single aromatic compound for each of them, which may or may not be representative of the aromatics present in the sample. Alternative techniques and test methods may classify and quantify individual aromatic hydrocarbon types differently.
NOTE 3 Backflush is part of laboratory-internal maintenance.
WARNING - The use of this standard can 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 users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.
Mineralölerzeugnisse - Bestimmung von aromatischen Kohlenwasserstoffgruppen in Mitteldestillaten - Hochleistungsflüssigkeitschromatographie-Verfahren mit Brechzahl-Detektion
Produits pétroliers - Détermination des familles d'hydrocarbures aromatiques dans les distillats moyens - Méthode par chromatographie liquide à haute performance avec détection par réfractométrie différentielle
Naftni proizvodi - Določevanje aromatskih ogljikovodikov v srednjih destilatih - Metoda tekočinske kromatografije visoke ločljivosti z detekcijo lomnega količnika
General Information
- Status
- Not Published
- Publication Date
- 18-Sep-2022
- Withdrawal Date
- 18-Dec-2022
- Technical Committee
- CEN/TC 19 - Petroleum products, lubricants and related products
- Drafting Committee
- CEN/TC 19/WG 9 - Chromatographic test methods
- Current Stage
- 4097 - End of interruption of work - split/merged
- Start Date
- 17-May-2022
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 19-Jan-2023
- Effective Date
- 07-Jul-2021
Overview
EN 12916:2019/prA1 is a CEN test method for the determination of aromatic hydrocarbon types in middle distillates (diesel fuels, paraffinic diesel fuels and petroleum distillates) using high performance liquid chromatography (HPLC) with refractive index (RI) detection. The method classifies and quantifies mono‑aromatic, di‑aromatic and tri+‑aromatic hydrocarbons and defines how to calculate polycyclic aromatic hydrocarbons (PAHs) and total aromatics from these groups.
Key topics and requirements
- Two procedures defined
- Procedure A: For diesel fuels (including up to 30% V/V FAME) and petroleum distillates in the 150 °C–400 °C boiling range.
- Procedure B: For paraffinic diesel fuels (up to 7% V/V FAME). Procedure B omits sample dilution to enable detection of low aromatic levels.
- Detection and quantification
- HPLC with refractive index detection; quantification via external calibration using a single model aromatic compound per aromatic type.
- By convention, aromatic type classification is based on elution characteristics relative to model compounds.
- Calculations
- Polycyclic aromatic hydrocarbon content = sum of di‑aromatic + tri+‑aromatic fractions.
- Total aromatic content = sum of individual aromatic hydrocarbon types.
- Interferences and limitations
- Compounds containing sulfur, nitrogen and oxygen can interfere; mono‑alkenes do not interfere, while conjugated di‑alkenes and poly‑alkenes can.
- The external single‑compound calibration may not fully represent the mix of aromatics present-alternative techniques can classify aromatics differently.
- Amendment (prA1) changes
- Modifies measurement ranges (referenced to Tables 2 and 3). For Procedure B the precision measurement range was revised from 0.2–2.0% (m/m) to 0.8–1.8% (m/m).
- Bibliography updated with note on EN ISO 4259:2006 (withdrawn but used in earlier precision calculations).
Applications and users
- Who uses it
- Fuel testing laboratories, refineries, fuel quality and compliance teams, regulatory authorities, environmental labs and R&D groups developing diesel and paraffinic fuels (including renewable blends).
- Practical uses
- Routine quality control of diesel and middle distillates.
- Verification of low‑aromatic paraffinic diesel specifications.
- Monitoring aromatic content for emissions, engine performance and blending decisions.
- Supporting regulatory compliance and product classification.
Related information and cautions
- Measurement ranges and precision values are specified in the standard’s tables-consult the full document for exact limits and performance data.
- Backflush is considered laboratory maintenance. The standard includes a safety warning: hazardous materials and equipment may be involved; users must follow local health and safety regulations.
Keywords: EN 12916:2019/prA1, aromatic hydrocarbons, HPLC RI detection, middle distillates, diesel fuels, paraffinic diesel, FAME, polycyclic aromatic hydrocarbons, fuel quality.
Frequently Asked Questions
EN 12916:2019/prA1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection". This standard covers: This document specifies a test method for the determination of the content of mono-aromatic, di-aromatic and tri+-aromatic hydrocarbons in diesel fuels, paraffinic diesel fuels and petroleum distillates. This document defines two procedures, A and B. Procedure A is applicable to diesel fuels that may contain fatty acid methyl esters (FAME) up to 30 % (V/V) (as in [1], [2] or [3]) and petroleum distillates in the boiling range from 150 °C to 400 °C (as in [4]. Procedure B is applicable to paraffinic diesel fuels with up to 7 % (V/V) FAME. This procedure does not contain a dilution of the sample in order to determine the low levels of aromatic components in these fuels. The polycyclic aromatic hydrocarbons content is calculated from the sum of di-aromatic and tri+-aromatic hydrocarbons and the total content of aromatic compounds is calculated from the sum of the individual aromatic hydrocarbon types. Compounds containing sulfur, nitrogen and oxygen can interfere in the determination; mono-alkenes do not interfere, but conjugated di-alkenes and poly-alkenes, if present, can do so. NOTE 1 For the purpose of this European Standard, the terms "% (m/m)" and "% (V/V)" are used to represent the mass fraction, µ, and the volume fraction, φ, of a material respectively. NOTE 2 By convention, the aromatic hydrocarbon types are defined on the basis of their elution characteristics from the specified liquid chromatography column relative to model aromatic compounds. Their quantification is performed using an external calibration with a single aromatic compound for each of them, which may or may not be representative of the aromatics present in the sample. Alternative techniques and test methods may classify and quantify individual aromatic hydrocarbon types differently. NOTE 3 Backflush is part of laboratory-internal maintenance. WARNING - The use of this standard can 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 users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.
This document specifies a test method for the determination of the content of mono-aromatic, di-aromatic and tri+-aromatic hydrocarbons in diesel fuels, paraffinic diesel fuels and petroleum distillates. This document defines two procedures, A and B. Procedure A is applicable to diesel fuels that may contain fatty acid methyl esters (FAME) up to 30 % (V/V) (as in [1], [2] or [3]) and petroleum distillates in the boiling range from 150 °C to 400 °C (as in [4]. Procedure B is applicable to paraffinic diesel fuels with up to 7 % (V/V) FAME. This procedure does not contain a dilution of the sample in order to determine the low levels of aromatic components in these fuels. The polycyclic aromatic hydrocarbons content is calculated from the sum of di-aromatic and tri+-aromatic hydrocarbons and the total content of aromatic compounds is calculated from the sum of the individual aromatic hydrocarbon types. Compounds containing sulfur, nitrogen and oxygen can interfere in the determination; mono-alkenes do not interfere, but conjugated di-alkenes and poly-alkenes, if present, can do so. NOTE 1 For the purpose of this European Standard, the terms "% (m/m)" and "% (V/V)" are used to represent the mass fraction, µ, and the volume fraction, φ, of a material respectively. NOTE 2 By convention, the aromatic hydrocarbon types are defined on the basis of their elution characteristics from the specified liquid chromatography column relative to model aromatic compounds. Their quantification is performed using an external calibration with a single aromatic compound for each of them, which may or may not be representative of the aromatics present in the sample. Alternative techniques and test methods may classify and quantify individual aromatic hydrocarbon types differently. NOTE 3 Backflush is part of laboratory-internal maintenance. WARNING - The use of this standard can 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 users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.
EN 12916:2019/prA1 is classified under the following ICS (International Classification for Standards) categories: 75.080 - Petroleum products in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12916:2019/prA1 has the following relationships with other standards: It is inter standard links to EN 12916:2019+A1:2022, EN 12916:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 12916:2019/prA1 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 CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2021
Naftni proizvodi - Določevanje aromatskih ogljikovodikov v srednjih destilatih -
Metoda tekočinske kromatografije visoke ločljivosti z detekcijo lomnega količnika
Petroleum products - Determination of aromatic hydrocarbon types in middle distillates -
High performance liquid chromatography method with refractive index detection
Mineralölerzeugnisse - Bestimmung von aromatischen Kohlenwasserstoffgruppen in
Mitteldestillaten - Hochleistungsflüssigkeitschromatographie-Verfahren mit Brechzahl-
Detektion
Produits pétroliers - Détermination des familles d'hydrocarbures aromatiques dans les
distillats moyens - Méthode par chromatographie liquide à haute performance avec
détection par réfractométrie différentielle
Ta slovenski standard je istoveten z: EN 12916:2019/prA1
ICS:
71.040.50 Fizikalnokemijske analitske Physicochemical methods of
metode analysis
75.080 Naftni proizvodi na splošno Petroleum products in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
EN 12916:2019
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
December 2021
ICS
English Version
Petroleum products - Determination of aromatic
hydrocarbon types in middle distillates - High
performance liquid chromatography method with
refractive index detection
Produits pétroliers - Détermination des familles Mineralölerzeugnisse - Bestimmung von aromatischen
d'hydrocarbures aromatiques dans les distillats Kohlenwasserstoffgruppen in Mitteldestillaten -
moyens - Méthode par chromatographie liquide à Hochleistungsflüssigkeitschromatographie-Verfahren
haute performance avec détection par réfractométrie mit Brechzahl-Detektion
différentielle
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 19.
This draft amendment A1, if approved, will modify the European Standard EN 12916:2019. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.
This draft amendment was established by CEN 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, N
...
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