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oSIST prEN 16997:2024

(Main)

Liquid petroleum products - Determination of the sulfur content in Ethanol (E85) automotive fuel- Wavelength dispersive X-ray fluorescence spectrometric method

Liquid petroleum products - Determination of the sulfur content in Ethanol (E85) automotive fuel- Wavelength dispersive X-ray fluorescence spectrometric method

This European Standard specifies a wavelength-dispersive X-ray fluorescence (WDXRF) test method for the determination of the sulfur content in ethanol (E85) automotive fuel [3], containing ethanol between 50 % (V/V) and 85 % (V/V), from 5 mg/kg to 20 mg/kg, using instruments with either monochromatic or polychromatic excitation.
NOTE 1   Sulfur contents higher than 20 mg/kg can be determined after sample dilution with an appropriate solvent. However, the precision was not established for diluted samples.
NOTE 2   For the purposes 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.
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.

Flüssige Mineralölerzeugnisse - Bestimmung des Schwefelgehalts in Ethanolkraftstoff (E85) - Wellenlängendispersives Röntgenfluoreszenz-Spektrometrie-Verfahren

Produits pétroliers liquides - Détermination de la teneur en soufre dans le carburant éthanol pour automobiles (E85) - Méthode spectrométrique par fluorescence de rayons X dispersive en longueur d'onde

Tekoči naftni proizvodi - Določanje žvepla v motornem gorivu etanol (E85) - Metoda z valovno disperzivno rentgensko fluorescenčno spektrometrijo

General Information

Status
Not Published
Public Enquiry End Date
01-Aug-2024
ICS
71.040.50 - Physicochemical methods of analysis
75.160.20 - Liquid fuels
Technical Committee
NAD - Petroleum products, lubricants and related products
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
05-Jun-2024
Due Date
23-Oct-2024
Ref Project
prEN 16997 - Liquid petroleum products - Determination of the sulfur content in Ethanol (E85) automotive fuel- Wavelength dispersive X-ray fluorescence spectrometric method

Relations

Revises
SIST EN 16997:2017 - Liquid petroleum products - Determination of the sulfur content in Ethanol (E85) automotive fuel - Wavelength dispersive X-ray fluorescence spectrometric method
Effective Date
01-Jul-2024

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SLOVENSKI STANDARD
oSIST prEN 16997:2024
01-julij-2024
Tekoči naftni proizvodi - Določanje žvepla v motornem gorivu etanol (E85) -
Metoda z valovno disperzivno rentgensko fluorescenčno spektrometrijo
Liquid petroleum products - Determination of the sulfur content in Ethanol (E85)
automotive fuel- Wavelength dispersive X-ray fluorescence spectrometric method
Flüssige Mineralölerzeugnisse - Bestimmung des Schwefelgehalts in Ethanolkraftstoff
(E85) - Wellenlängendispersives Röntgenfluoreszenz-Spektrometrie-Verfahren
Produits pétroliers liquides - Détermination de la teneur en soufre dans le carburant
éthanol pour automobiles (E85) - Méthode spectrométrique par fluorescence de rayons
X dispersive en longueur d'onde
Ta slovenski standard je istoveten z: prEN 16997
ICS:
71.040.50 Fizikalnokemijske analitske Physicochemical methods of
metode analysis
75.160.20 Tekoča goriva Liquid fuels
oSIST prEN 16997:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 16997:2024

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oSIST prEN 16997:2024


DRAFT
EUROPEAN STANDARD
prEN 16997
NORME EUROPÉENNE

EUROPÄISCHE NORM

July 2024
ICS 75.160.20 Will supersede EN 16997:2017
English Version

Liquid petroleum products - Determination of the sulfur
content in Ethanol (E85) automotive fuel- Wavelength
dispersive X-ray fluorescence spectrometric method
Produits pétroliers liquides - Détermination de la Flüssige Mineralölerzeugnisse - Bestimmung des
teneur en soufre dans des carburant automobile Schwefelgehalts in Ethanolkraftstoff (E85) -
Ethanol (E85) - Méthode de fluorescence de rayons X Wellenlängendispersives Röntgenfluoreszenz-
dispersive en longuer d'onde Spektrometrie-Verfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 19.

If this draft becomes a European Standard, 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.

This draft European Standard 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, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


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. prEN 16997:2024 E
worldwide for CEN national Members.

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oSIST prEN 16997:2024
prEN 16997:2024 (E)
Contents Page
European 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 Sampling .
...

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This document defines two procedures, A and B.
Procedure A is applicable to automotive motor gasoline with total aromatics of 19,32 % (V/V) up to 46,29 % (V/V); total olefins from 0,40 % (V/V) up to 26,85 % (V/V); oxygenates from 0,61 % (V/V) up to 9,85 % (V/V); oxygen content from 1,50 % (m/m) to 12,32 % (m/m); benzene content from 0,38 % (V/V) up to 1,98 % (V/V) and toluene content from 5,85 % (V/V) up to 31,65 % (V/V).
The method has also been tested for individual oxygenates. A precision has been determined for a total volume of methanol from 1,05 % (V/V) up to 16,96 % (V/V); a total volume of ethanol from 0,50 % (V/V) up to 17,86 % (V/V); a total volume of MTBE from 0,99 % (V/V) up to 15,70 % (V/V), a total volume of ETBE from 0,99 % (V/V) up to 15,49 % (V/V), a total volume of TAME from 0,99 % (V/V) up to 5,92 % (V/V), and a total volume of TAEE from 0,98 % (V/V) up to 15,59 % (V/V).
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Although specifically developed for the analysis of automotive motor gasoline that contains oxygenates, this test method can also be applied to other hydrocarbon streams having similar boiling ranges, such as naphthas and reformates.
NOTE 2   For Procedure A, applicability of this document has also been verified for the determination of n-propanol, acetone, and di-isopropyl ether (DIPE). However, no precision data have been determined for these compounds.
Procedure B describes the analysis of oxygenated groups (ethanol, methanol, ethers, C3 – C5 alcohols) in ethanol (E85) automotive fuel containing ethanol between 50 % (V/V) and 85 % (V/V). The gasoline is diluted with an oxygenate-free component to lower the ethanol content to a value below 20 % (V/V) before the analysis by GC.
The sample can be fully analysed including hydrocarbons. Precision data for the diluted sample are only available for the oxygenated groups.
NOTE 3   For Procedure B, the precision can be used for an ethanol fraction from about 50 % up to 85 % (V/V). For the ether fraction, the precision as specified in Table 6 can be used for samples containing at least 11 % (V/V) of ethers. For the higher alcohol fraction, too few data were obtained to derive a full precision statement and the data presented in Table 6 are therefore only indicative.
NOTE 4   An overlap between C9 and C10 aromatics can occur. However, the total is accurate. Isopropyl benzene is resolved from the C8 aromatics and is included with the other C9 aromatics.

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