Petroleum products and other liquids - Applicability of test methods on sulfur determination in petrol and diesel fuel

This Technical Report summarises the activity carried out by CEN/TC 19 to define the precision of new test methods for the determination of low sulfur content in automotive fuels. The full description of the activity can be found in the Working Group Report completed in August 2002, which is an internal CEN/TC 19 document.

Mineralölerzeugnisse und andere Flüssigkeiten - Anwendbarkeit von Prüfverfahren für die Schwefelbestimmung in Ottokraftstoffen und Dieselkraftstoffen

Produits pétroliers et autres liquides - Évaluation de méthodes d'essai de détermination de la teneur en soufre dans l'essence et le gazole

Ce rapport technique résume les travaux réalisés par le CEN/TC 19 pour déterminer la précision des nouvelles méthodes d'essais portant sur la détermination des faibles teneurs en soufre pour les carburants automobiles. Un descriptif complet de ces travaux se trouve dans le rapport du Groupe de Travail (WG Report) rédigé en août 2002, qui constitue un document interne au CEN/TC 19.

Naftni proizvodi in druge tekočine – Uporabnost preskusnih metod pri določevanju žvepla v naftnem in dizelskem gorivu

General Information

Status
Published
Publication Date
02-Aug-2005
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
03-Aug-2005
Completion Date
03-Aug-2005

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SLOVENSKI STANDARD
01-oktober-2005
1DIWQLSURL]YRGLLQGUXJHWHNRþLQH±8SRUDEQRVWSUHVNXVQLKPHWRGSULGRORþHYDQMX
åYHSODYQDIWQHPLQGL]HOVNHPJRULYX
Petroleum products and other liquids - Applicability of test methods on sulfur
determination in petrol and diesel fuel
Mineralölerzeugnisse und andere Flüssigkeiten - Anwendbarkeit von Prüfverfahren für
die Schwefelbestimmung in Ottokraftstoffen und Dieselkraftstoffen
Produits pétroliers et autres liquides - Évaluation de méthodes d'essai de détermination
de la teneur en soufre dans l'essence et le gazole
Ta slovenski standard je istoveten z: CEN/TR 15139:2005
ICS:
75.160.20 7HNRþDJRULYD Liquid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN/TR 15139
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
August 2005
ICS 75.160.20
English Version
Petroleum products and other liquids - Applicability of test
methods on sulfur determination in petrol and diesel fuel
Produits pétroliers et autres liquides - Évaluation de Mineralölerzeugnisse und andere Flüssigkeiten -
méthodes d'essai de détermination de la teneur en soufre Anwendbarkeit von Prüfverfahren für die
dans l'essence et le gazole Schwefelbestimmung in Ottokraftstoffen und
Dieselkraftstoffen
This Technical Report was approved by CEN on 14 May 2005. It has been drawn up by the Technical Committee CEN/TC 19.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15139:2005: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction.4
1 Scope.5
2 Test methods.5
3 Samples.5
4 Laboratories.5
5 Evaluation of round robin results.6
6 Statistical analysis.6
7 Comparison between methods and accuracy .7
8 Applicability to FAME blends.7
9 Conclusions.7
10 Recommendations for updating EN 228 and EN 590 .7
11 Test method publication.8

Acknowledgements .9
Bibliography.10

Foreword
This Technical Report (CEN/TR 15139:2005) 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.
Introduction
th
During its 8 meeting held in London on 25 - 26 October 2000, CEN/TC 19/WG 27 "Elemental analysis of
petroleum and related products" decided to carry out a second round robin, after the first performed in 1998 -
1999, to define the precision of new test methods in the range 1 mg/kg to 60 mg/kg sulfur. The range of sulfur
content was selected to obtain definite and robust precision statements for future sulfur limits. The round robin
was carried out in 2001.
The work has formed the basis for sulfur test method standards produced by the following organizations:
 ISO/TC 28 "Petroleum products", and
 CEN/TC 19 "Petroleum products, lubricants and related products".
1 Scope
This Technical Report summarises the activity carried out by CEN/TC 19 to define the precision of new test
methods for the determination of low sulfur content in automotive fuels. The full description of the activity can
be found in the Working Group Report completed in August 2002, which is an internal CEN/TC 19 document.
2 Test methods
WG 27 identified the most suitable instrumental methods to include in the round robin, also according to the
experience gained in the round robin carried out in 1999. The methods available at that time and used in the
assessment are listed below (see also Clause 12).
- EN ISO 14596 WDXRF (with internal standard) [1];
- ISO/CD 20846 UVF [2];
- ISO/CD 20847 EDXRF [3];
- ISO/CD 20884 WDXRF (without internal standard) [4];
- prEN ISO/DIS 16591 Oxidative microcoulometry [5].
3 Samples
Eight petrol and ten diesel samples with sulfur content from 1 mg/kg to 55 mg/kg were included in the round
robin. Two samples were blends of FAME in diesel (5 % (V/V) FAME) and were included in the round robin to
examine the applicability of the methods to FAME blends according to EN 590 specification [6].
Two samples (one petrol and one diesel) were considered as “quality control” samples, to check for accuracy
of results, as sulfur content had been determined using Isotope Dilution Mass Spectrometry (ID-MS), the
technique employed for the certification of element content in reference materials.
4 Laboratories
European laboratories were contacted to obtain a satisfactory participation for the methods listed above. A
total of 102 applications from 11 countries were received. Table 1 shows the distribution of the techniques
employed by the laboratories that effectively participated in the round robin.
Table 1 — Final list of participants
a
WDXRF  EDXRF UVF Microcoulometry
High Power Lower Power Polarised Non-polarised
Laboratories 40 15 6 17 39 20
a
High power instruments
...

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