EN ISO 20783-1:2003

SLOVENSKI STANDARD
01-julij-2004
1DIWQLLQVRURGQLSURL]YRGL'RORþDQMHVWDELOQRVWLHPXO]LMHWHNRþLQRGSRUQLKSURWL
RJQMX±GHO7HNRþLQHVNXSLQH+)$(,62
Petroleum and related products - Determination of emulsion stability of fire-resistant
fluids - part 1: Fluids in category HFAE (ISO 20783-1:2003)
Mineralölerzeugnisse und verwandte Produkte - Bestimmung der Emulsionsstabilität von
schwer entflammbaren Flüssigkeiten - Teil 1: Flüssigkeiten der Kategorie HFAE (ISO
20783-1:2003)
Pétrole et produits connexes - Détermination de la stabilité d'émulsions de fluides
difficilement inflammables - Partie 1: Fluides de catégorie HFAE (ISO 20783-1:2003)
Ta slovenski standard je istoveten z: EN ISO 20783-1:2003
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.

EUROPEAN STANDARD
EN ISO 20783-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2003
ICS 75.120
English version
Petroleum and related products - Determination of emulsion
stability of fire-resistant fluids - part 1: Fluids in category HFAE
(ISO 20783-1:2003)
Pétrole et produits connexes - Détermination de la stabilité Mineralölerzeugnisse und verwandte Produkte -
d'émulsions de fluides difficilement inflammables - Partie 1: Bestimmung der Emulsionsstabilität von schwer
Fluides de catégorie HFAE (ISO 20783-1:2003) entflammbaren Flüssigkeiten - Teil 1: HFAE-Flüssigkeiten
(ISO 20783-1:2003)
This European Standard was approved by CEN on 2 December 2003.
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,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, 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
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20783-1:2003 E
worldwide for CEN national Members.

CORRECTED  2004-03-03
Foreword
This document (EN ISO 20783-1:2003) 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 June 2004, and conflicting national
standards shall be withdrawn at the latest by June 2004.
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, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 20783-1:2003 has been approved by CEN as EN ISO 20783-1:2003 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).
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/HD Year
ISO 3170 1988 Petroleum liquids - Manual sampling EN ISO 3170 1998
ISO 3696 1987 Water for analytical laboratory use - EN ISO 3696 1995
Specification and test methods
INTERNATIONAL ISO
STANDARD 20783-1
First edition
2003-12-15
Petroleum and related products —
Determination of emulsion stability of
fire-resistant fluids —
Part 1:
Fluids in category HFAE
Pétrole et produits connexes — Détermination de la stabilité d'émulsion
de fluides difficilement inflammables —
Partie 1: Fluides de catégorie HFAE

Reference number
ISO 20783-1:2003(E)
©
ISO 2003
ISO 20783-1:2003(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2003
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2003 – All rights reserved

ISO 20783-1:2003(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Principle . 2
5 Reagents . 2
6 Apparatus. 2
7 Samples and sampling . 3
8 Test conditions. 4
9 Procedure. 4
10 Expression of results. 5
11 Precision . 5
12 Test report. 5
Annex A (normative) Composition of test waters. 6

ISO 20783-1:2003(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 2.
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 document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 20783-1 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricant.
ISO 20783 consists of the following parts, under the general title Petroleum and related products —
Determination of emulsion stability of fire-resistant fluids:
— Part 1: Fluids in category HFAE
— Part 2: Fluids in category HFB

iv © ISO 2003 – All rights reserved

INTERNATIONAL STANDARD ISO 20783-1:2003(E)

Petroleum and related products — Determination of emulsion
stability of fire-resistant fluids —
Part 1:
Fluids in category HFAE
WARNING — The use of this part of ISO 20783 may involve hazardous materials, operations and
equipment. This part of ISO 20783 does not purport to address all of the safety problems associated
with its use. It is the responsibility of the user of this part of ISO 20783 to establish appropriate safety
and health practices and determine the applicability of regulatory limitations prior to use.
1 Scope
This part of ISO 20783 specifies a test method to assess the stability of emulsions within the category HFAE,
1)
as defined in ISO 6743-4 , made up with waters having clearly-defined concentrations of salts. This method
is applicable only to HFAE fluids and not to HFAS fluids.
2 Normative references
The following referenced documents are indispensable for the application 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.
2)
ISO 3170:— , Petroleum liquids — Manual sampling
ISO 3696:1987, Water for analytical laboratory use — Specification and test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
stability
ability of a fluid to remain of a uniform composition and consistency for extended periods of time, without the
formation of layers having compositions different to the bulk or the separation of components or ingredients

1) ISO 6743-4:1999, Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H
(Hydraulic systems).
2) To be published. (Revision of ISO 3170:1988)
ISO 20783-1:2003(E)
3.2
oil separation
production, in the form of droplets or a continuous layer at the surface of the test sample, of a separate phase
that has a distinct difference in colour, generally more or less dark yellow, and a distinct phase boundary that
separates it from the bulk of the test sample
3.3
creaming
production of a layer at the surface of the test sample with a white to yellow-white colour, showing a
consistency different from the rest of the sample, but not necessarily a distinct separation boundary
4 Principle
A sample of emulsifying oil is used to make up an emulsion with a standard test water with which it has been
declared to be compatible by the manufacturer. The emulsion is stored for a specified period at a specified
temperature. Observations of the stability of the emulsion are made at the end of the storage period.
5 Reagents
5.1 Demineralized water, meeting the requirements of Grade 2 of ISO 3696:1987.
5.2 Potable water, i.e. tap water, unless the mains supply is contaminated with particulate or high soluble
mineral content.
5.3 Acetone (CH COCH ), general purpose reagent (GPR).
3 3
5.4 Propan-2-ol (isopropyl alcohol) (CH CHOHCH ), general purpose reagent (GPR).
3 3
5.5 Strong oxidizing solution.
The reference strong oxidizing solution is chromosulfuric acid (see warning), but for the majority of
circumst
...