SIST EN ISO 1523:2002

SLOVENSKI STANDARD
SIST EN ISO 1523:2002
01-september-2002
'RORþHYDQMHSODPHQLãþD5DYQRWHåQDPHWRGDY]DSUWLSRVRGL,62
Determination of flash point - Closed cup equilibrium method (ISO 1523:2002)
Bestimmung des Flammpunktes - Gleichgewichtsverfahren mit geschlossenem Tiegel
(ISO 1523:2002)
Détermination du point d'éclair - Méthode a l'équilibre en vase clos (ISO 1523:2002)
Ta slovenski standard je istoveten z: EN ISO 1523:2002
ICS:
75.080 Naftni proizvodi na splošno Petroleum products in
general
87.040 Barve in laki Paints and varnishes
SIST EN ISO 1523:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 1523:2002

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SIST EN ISO 1523:2002
EUROPEAN STANDARD
EN ISO 1523
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2002
ICS 75.080; 87.040
English version
Determination of flash point - Closed cup equilibrium method
(ISO 1523:2002)
Détermination du point d'éclair - Méthode à l'équilibre en Bestimmung des Flammpunktes - Gleichgewichtsverfahren
vase clos (ISO 1523:2002) mit geschlossenem Tiegel (ISO 1523:2002)
This European Standard was approved by CEN on 1 March 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1523:2002 E
worldwide for CEN national Members.

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SIST EN ISO 1523:2002
EN ISO 1523:2002 (E)
CORRECTED  2002-05-22
Foreword
This document (ISO 1523:2002) has been prepared by Technical Committee ISO/TC 28
"Petroleum products and lubricants" in collaboration with Technical Committee CEN/TC 19
"Petroleum products, lubricants and related products", 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 September 2002, and conflicting
national standards shall be withdrawn at the latest by September 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
United Kingdom.
Endorsement notice
The text of the International Standard ISO 1523:2002 has been approved by CEN as a
European Standard without any modifications.
NOTE Normative references to International Standards are listed in annex ZA (normative).
2

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SIST EN ISO 1523:2002
EN ISO 1523:2002 (E)
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions
of any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications,
indicated by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 1513 1992 Paints and varnishes - Examination EN ISO 1513 1994
and preparation of samples for
testing
ISO 2719 1988 Petroleum products and lubricants - EN 22719 1993
Determination of flash point -
Pensky-Martens closed cup method
ISO 3170 1998 Petroleum liquids - Manual EN ISO 3170 1998
sampling
ISO 3171 1988 Petroleum liquids - Automatic EN ISO 3171 1999
pipeline sampling
ISO 13736 1997 Petroleum products and other EN ISO 13736 1997
liquids - Determination of flash point
- Abel closed cup method
ISO 15528 2000 Paints, varnishes and raw materials EN ISO 15528 2000
for paints and varnishes – Sampling
3

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SIST EN ISO 1523:2002

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SIST EN ISO 1523:2002


INTERNATIONAL ISO
STANDARD 1523
Third edition
2002-03-01


Determination of flash point — Closed cup
equilibrium method
Détermination du point d'éclair — Méthode à l'équilibre en vase clos




Reference number
ISO 1523:2002(E)
©
ISO 2002

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SIST EN ISO 1523:2002
ISO 1523:2002(E)
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ii © ISO 2002 – All rights reserved

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SIST EN ISO 1523:2002
ISO 1523:2002(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references.1
3 Term and definition .2
4 Principle.2
5 Chemicals and materials.2
6 Apparatus .2
7 Apparatus preparation .3
8 Sampling.4
9 Sample handling .5
10 Procedure .5
11 Calculation .6
12 Expression of result .7
13 Precision.7
14 Test report .7
Annex A (informative) Verification of apparatus.8
Bibliography.11


© ISO 2002 – All rights reserved iii

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SIST EN ISO 1523:2002
ISO 1523:2002(E)
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
The main task of technical committees is to prepare International Standards. Draft International Standards adopted
by the technical committees are circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 1523 was prepared jointly by Technical Committees ISO/TC 28, Petroleum products and lubricants and
ISO/TC 35, Paints and varnishes.
This third edition cancels and replaces the second edition (ISO 1523:1983), which has been technically revised.
Annex A of this International Standard is for information only.
iv © ISO 2002 – All rights reserved

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SIST EN ISO 1523:2002
ISO 1523:2002(E)
Introduction
This International Standard describes one of two closed cup equilibrium methods for the determination of the flash
point of paints, varnishes, petroleum and related products, and it should be read in conjunction with the second
equilibrium method, ISO 3679 ([5] in the bibliography), when selecting a method.
The determination of the flash/no flash temperature using the same equipment is described in ISO 1516 ([4] in the
bibliography).
By the procedure specified, differences between test apparatus of various standard designs are minimized by
ensuring that the test is carried out only when the product under test and the air/vapour mixture above it in the test
vessel are considered to be in temperature equilibrium.
© ISO 2002 – All rights reserved v

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SIST EN ISO 1523:2002

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SIST EN ISO 1523:2002
INTERNATIONAL STANDARD ISO 1523:2002(E)

Determination of flash point — Closed cup equilibrium method
WARNING — The use of this International Standard may involve hazardous materials, operations and
equipment. This International Standard does not purport to address all of the safety problems associated
with its use. It is the responsibility of the user of this International Standard to establish appropriate safety
and health practices and determine the applicability of regulatory limitations prior to use.
1 Scope
This International Standard specifies a method to determine the flash point of paints, varnishes, paint binders,
solvents, petroleum or related products.
This International Standard is not applicable to water-borne paints which may, however, be tested using ISO 3679
([5] in the bibliography).
The method is suitable for use over the temperature range – 30 °C to 110 °C, depending on the use of different
apparatus listed in Table 1.
The interpretation of results obtained from solvent mixtures containing halogenated hydrocarbons should be
considered with caution, as these mixtures can give anomalous results.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 1513:1992, Paints and varnishes — Examination and preparation of samples for testing
1)
ISO 2719:— , Petroleum products and lubricants — Determination of flash point — Pensky-Martens closed cup
method
ISO 3170:1988, Petroleum liquids — Manual sampling
ISO 3171:1988, Petroleum liquids — Automatic pipeline sampling
ISO 13736:1997, Petroleum products and other liquids — Determination of flash point — Abel closed cup method
ISO 15528:2000, Paints, varnishes and raw materials for paints and varnishes — Sampling
ASTM D56-00, Standard Test Method for Flash Point by Tag Closed Tester
DIN 51755:1974, Testing of mineral oils and other combustible liquids; determination of flash point by the closed
tester according to Abel-Pensky

1) To be published. (Revision of ISO 2719:1988)
© ISO 2002 – All rights reserved 1

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SIST EN ISO 1523:2002
ISO 1523:2002(E)
3 Term and definition
For the purposes of this International Standard, wherein ignition source is recognized as being a flame, the
following term and definition apply.
3.1
flash point
lowest temperature of the test portion, corrected to a barometric pressure of 101,3 kPa, at which application of an
ignition source causes the vapour of the test portion to ignite and the flame to propagate across the surface of the
liquid under the specified conditions of test
4 Principle
The test portion is placed in a suitably designed closed cup mounted in a heating bath. The temperature of the bath
is slowly raised at such a rate that the difference in temperature between the liquid in the bath and the test portion
in the cup never exceeds 2 °C, and the temperature of the test portion does not rise at a rate greater than
approximately 0,5 °C in 1,5 min.
During the heating-up period, ignition trials are carried out at intervals of not less than 1,5 min. The lowest
temperature at which a flash occurs is noted.
5 Chemicals and materials
5.1 Cleaning solvent, for removal of traces of the previous test portion from the test cup and cover.
NOTE The choice of solvent will depend upon the previous material tested, and the tenacity of the residue. Low volatility
aromatic (benzene-free) solvents may be used to remove traces of oil, and mixed solvents such as toluene-acetone-methanol
may be effective for the removal of gum-type deposits.
5.2 Verification liquids, see annex A.
6 Apparatus
6.1 Test cup and lid: a closed cup with, where specified, an internal level indicator, and lid, as specified in the
standards listed in Table 1.
The test cup shall be fitted with a tightly fitting cover which carries an opening slide and an ignition device capable,
when the slide is open, of positioning an ignition flame, with a diameter of between 3 mm and 4 mm, at the
approximate centre of the opening in the lid. When positioned, the tip of the ignition device shall be between the
planes of the lower and upper surfaces of the lid at a point on a radius passing through the centre of the opening.
The apparatus shall be designed such that an ignition trial can be performed by opening the slide, positioning and
removing the nozzle of the ignition device, and closing the slide again in a period of between 2 s and 3 s. A
mechanically driven device for carrying out this operation is permitted provided that it can be shown that it meets
the specification.
NOTE The source of flame in the ignition device may be any suitable flammable gas.
6.2 Test cup thermometer, as specified for use with the test cup in the standards listed in Table 1.
NOTE Other types of temperature measuring devices may be used provided that they meet the requirements for accuracy
and have the same response as the thermometers specified in the standards listed in Table 1.
6.3 Heating bath, containing a suitable liquid, capable of being heated at the required temperature rate
(see 10.10), and of adequate size and heat capacity to meet the requirements of 10.10.
2 © ISO 2002 – A
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