SIST EN ISO 8754:2025

SLOVENSKI STANDARD
01-november-2025
Nadomešča:
SIST EN ISO 8754:2003
Naftni proizvodi - Določanje žvepla - Metoda z energijsko-disperzivno rentgensko
fluorescenčno spektrometrijo (ISO 8754:2025)
Petroleum products - Determination of sulfur content - Energy-dispersive X-ray
fluorescence spectrometry (ISO 8754:2025)
Mineralölerzeugnisse - Bestimmung des Schwefelgehaltes - Energiedispersive
Röntgenfluoreszenz-Spektrometrie (ISO 8754:2025)
Produits pétroliers - Détermination de la teneur en soufre - Spectrométrie de
fluorescence de rayons X dispersive en énergie (ISO 8754:2025)
Ta slovenski standard je istoveten z: EN ISO 8754:2025
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.

EN ISO 8754
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2025
EUROPÄISCHE NORM
ICS 75.080 Supersedes EN ISO 8754:2003
English Version
Petroleum products - Determination of sulfur content -
Energy-dispersive X-ray fluorescence spectrometry (ISO
8754:2025)
Produits pétroliers - Détermination de la teneur en Mineralölerzeugnisse - Bestimmung des
soufre - Spectrométrie de fluorescence de rayons X Schwefelgehaltes - Energiedispersive
dispersive en énergie (ISO 8754:2025) Röntgenfluoreszenz-Spektrometrie (ISO 8754:2025)
This European Standard was approved by CEN on 19 May 2025.

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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8754:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8754:2025) has been prepared by Technical Committee ISO/TC 28 "Petroleum
and related products, fuels and lubricants from natural or synthetic sources" in collaboration with
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 February 2026, and conflicting national standards
shall be withdrawn at the latest by February 2026.
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 ISO 8754:2003.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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,
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.
Endorsement notice
The text of ISO 8754:2025 has been approved by CEN as EN ISO 8754:2025 without any modification.

International
Standard
ISO 8754
Third edition
Petroleum products —
2025-08
Determination of sulfur content
— Energy-dispersive X-ray
fluorescence spectrometry
Produits pétroliers — Détermination de la teneur en soufre —
Spectrométrie de fluorescence de rayons X dispersive en énergie
Reference number
ISO 8754:2025(en) © ISO 2025
ISO 8754:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 8754:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents and materials . 1
6 Apparatus . 2
7 Sampling . 2
8 Apparatus preparation . 3
8.1 Analyser .3
8.2 Sample cups .3
9 Calibration . 3
9.1 General .3
9.2 Preparation of primary standards .3
9.3 Calibration standards .4
9.4 Storage of standards . .4
9.5 Calibration procedure .5
9.6 Checking .5
9.6.1 Short-term checking .5
9.6.2 Long-term checking .5
10 Procedure . 5
11 Calculation . 5
12 Expression of results . 5
13 Precision . 6
13.1 General .6
13.2 Repeatability, r.6
13.3 Reproducibility, R .6
14 Test report . 6
Annex A (informative) Matrix effects . 7
Bibliography . 9

iii
ISO 8754:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 28, Petroleum and related products, fuels and
lubricants from natural or synthetic sources, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/TC 19, Gaseous and liquid fuels, lubricants and related products of petroleum,
synthetic and biological origin, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 8754:2003), which has been technically
revised.
The main changes are as follows:
— the Scope has been expanded to biofuel and biofuel blends without precision statement;
— procedures for matrix corrections have been described in A.3;
— Clause 3 (Terms and definitions) has been added;
— Bibliography has been added.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO 8754:2025(en)
Introduction
A specialized procedure, using the analytical technique described in this document, for automotive fuels
with sulfur contents below 0,20 % mass fraction, is covered by ISO 13032.
This test method can be used for biofuel or biofuel blends. The correction of matrix effects with regards to
oxygen content are described in A.3. Biofuel or biofuel blends were not tested during the determination of
the precision of the test method.

v
International Standard ISO 8754:2025(en)
Petroleum products — Determination of sulfur content —
Energy-dispersive X-ray fluorescence spectrometry
WARNING — The use of this document may 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.
1 Scope
This document specifies a method using energy-dispersive X-ray fluorescence spectrometry for the
determination of the sulfur content of petroleum products, such as naphthas, unleaded motor gasolines,
middle distillates, residual fuel oils, base lubricating oils and components. The method is applicable to
products with sulfur content in the range of a mass fraction of 0,03 % to a mass fraction of 5,00 %.
This test method can be used for biofuel or biofuel blends.
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.
ISO 3170, Hydrocarbon Liquids — Manual sampling
ISO 3171, Petroleum liquids — Automatic pipeline sampling
3 Terms and definitions
No
...