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SLOVENSKI STANDARD
01-februar-2023
Nadomešča:
SIST EN ISO 3679:2015
Določanje plamenišča - Metoda za plamen in plamenišče v zaprti posodi z majhno
prostornino (ISO 3679:2022)
Determination of flash point - Method for flash no-flash and flash point by small scale
closed cup tester (ISO 3679:2022)
Bestimmung des Flammpunkts - Verfahren zur Bestimmung des Flammpunkts und des
Nicht-Flammpunkts mit einem kleinen geschlossenen Tiegelprüfgerät (ISO 3679:2022)
Détermination du point d'éclair - Détermination de l'éclair de type passe / ne passe pas
et méthode du point d'éclair en vase clos à petite échelle (ISO 3679:2022)
Ta slovenski standard je istoveten z: EN ISO 3679:2022
ICS:
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 3679
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2022
EUROPÄISCHE NORM
ICS 87.040; 75.080 Supersedes EN ISO 3679:2015
English Version
Determination of flash point - Method for flash no-flash
and flash point by small scale closed cup tester (ISO
3679:2022)
Détermination du point d'éclair - Détermination de Bestimmung des Flammpunkts - Verfahren zur
l'éclair de type passe / ne passe pas et méthode du Bestimmung des Flammpunkts und des Nicht-
point d'éclair en vase clos à petite échelle (ISO Flammpunkts mit einem kleinen geschlossenen
3679:2022) Tiegelprüfgerät (ISO 3679:2022)
This European Standard was approved by CEN on 30 September 2022.
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3679:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 3679:2022) 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 May 2023, and conflicting national standards shall be
withdrawn at the latest by May 2023.
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 3679:2015.
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 3679:2022 has been approved by CEN as EN ISO 3679:2022 without any modification.
INTERNATIONAL ISO
STANDARD 3679
Fifth edition
2022-11
Determination of flash point – Method
for flash no-flash and flash point by
small scale closed cup tester
Détermination du point d'éclair — Méthode de l’éclair de type passe/
ne passe pas et méthode du point d'éclair en vase clos à petite échelle
Reference number
ISO 3679:2022(E)
ISO 3679:2022(E)
© ISO 2022
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: [email protected]
Website: www.iso.org
Published in Switzerland
ii
ISO 3679:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
4.1 Rapid equilibrium procedures A and B . 2
4.2 Non-equilibrium procedure C . 3
5 Reagents and materials . 3
6 Apparatus . 3
7 Preparation of apparatus .4
7.1 General . 4
7.2 Location of apparatus . 4
7.3 Cleaning of the test cup assembly and accessories . 4
7.4 Apparatus verification . 4
8 Sampling . 5
9 Sample handling .5
9.1 Petroleum products and fatty acid methyl esters. 5
9.1.1 Subsampling . 5
9.1.2 Samples liquid at ambient temperature . 5
9.1.3 Samples solid or semi-solid at ambient temperature . 6
9.1.4 Samples containing dissolved or free water that is not part of the product . 6
9.2 Paints, varnishes, and related materials . 6
10 Procedures . 6
10.1 General . 6
10.2 Procedure A — Flash no-flash test . 6
10.3 Procedure B — Flash point determination . 7
10.4 Procedure C — Flash point determination . 9
11 Calculation . 9
11.1 Conversion of barometric pressure reading . 9
11.2 Correction of the detected flash point. 9
12 Expression of results .10
13 Precision .10
13.1 General . 10
13.2 Repeatability, r. 10
13.3 Reproducibility, R . 10
13.4 Relative bias between the procedures C and B . 11
14 Test report .11
Annex A (normative) Flash point apparatus .13
Annex B (normative) Verification of apparatus .18
Annex C (informative) The use of a cup insert .22
Annex D (normative) Sub-ambient procedures A and B for manual apparatus .23
Annex E (normative) Temperature measuring device specifications .24
Annex F (informative) Flash point values of chemicals .
...