SIST EN ISO 20783-1:2011
(Main)Petroleum and related products - Determination of emulsion stability of fire-resistant fluids - Part 1: Fluids in category HFAE (ISO 20783-1:2011)
Petroleum and related products - Determination of emulsion stability of fire-resistant fluids - Part 1: Fluids in category HFAE (ISO 20783-1:2011)
ISO 20783‑1:2011 specifies a test method to assess the stability of emulsions within the category HFAE, 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.
Mineralölerzeugnisse und verwandte Produkte - Bestimmung der Emulsionsstabilität von schwer entflammbaren Flüssigkeiten - Teil 1: HFAE-Flüssigkeiten (ISO 20783-1:2011)
Dieser Teil von ISO 20783 legt ein Verfahren zur Begutachtung der Stabilität von Emulsionen von
Flüssigkeiten der Kategorie HFAE, wie in ISO 6743-4 festgelegt, fest. Für die Herstellung der Emulsionen wird
Wasser mit genau festgelegten Salzkonzentrationen verwendet. Dieses Verfahren gilt nur für HFAE-Flüssigkeiten
und nicht für HFAS-Flüssigkeiten.
Pétrole et produits connexes - Détermination de la stabilité d'émulsions de fluides difficilement inflammables - Partie 1: Fluides de catégorie HFAE (ISO 20783-1:2011)
L'ISO 20783-1:2011 spécifie une méthode d'essai permettant d'évaluer la stabilité d'émulsions de fluides de la catégorie HFAE, tels que définis dans l'ISO 6743-4, préparées avec des eaux dont les concentrations en sels sont clairement définies. Cette méthode est applicable seulement aux fluides de catégorie HFAE, et non aux fluides de catégorie HFAS.
Naftni in sorodni proizvodi - Določevanje stabilnosti emulzije tekočin, odpornih proti ognju - 1. del: Tekočine skupine HFAE (ISO 20783-1:2011)
Ta del ISO 20783 določa preskusno metodo za ocenjevanje stabilnosti emulzij v skupini HFAE, kot je določeno v ISO 6743-4, narejenimi z vodami, ki imajo točno določene koncentracije soli. Ta metoda velja samo za tekočine HFAE in ne za tekočine HFAS.
General Information
- Status
- Published
- Publication Date
- 08-Feb-2011
- Technical Committee
- NAD - Petroleum products, lubricants and related products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 26-Jan-2011
- Due Date
- 02-Apr-2011
- Completion Date
- 09-Feb-2011
Relations
- Effective Date
- 01-Mar-2011
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
Overview
SIST EN ISO 20783-1:2011 outlines the standardized test method for assessing the emulsion stability of fire-resistant hydraulic fluids, specifically those in category HFAE, as defined in ISO 6743-4. These fluids, which are water-in-oil emulsions, are widely used in hydraulic systems where fire resistance and stable performance in the presence of water and salts are crucial. The standard provides an internationally recognized approach to evaluate how well HFAE fluids maintain their emulsion properties under specified conditions, ensuring suitability and safety for petroleum and related product applications.
Key Topics
- Emulsion Stability Testing: Specifies procedures to assess the ability of HFAE fluids to maintain uniformity and resist separation (oil separation, creaming, water separation) when mixed with waters of defined salt concentrations.
- Test Conditions: Defines two standardized storage scenarios for the emulsion-one at 70°C for one week and another at 50°C for three weeks-to simulate operational stresses.
- Required Materials and Equipment:
- Emulsifying oil samples prepared according to ISO 3170.
- Use of specific glassware (Hirschsohn flasks), oven, and reagents such as demineralized water (ISO 3696), acetone, and isopropyl alcohol.
- Sample Preparation and Water Types: Involves mixing standard HFAE oil with defined test waters containing precise salt concentrations, as detailed in Annex A.
- Visual Assessment Criteria:
- Oil separation categories: No oil, traces (drops or ring), or continuous film.
- Creaming levels: None, minor (<1 mL), or significant (>1 mL).
- Recording presence of water separation at flask bottoms.
- Result Expression: Results are documented by stability categories observed in at least two of the three replicates.
Applications
- Hydraulic Systems in Fire-Prone Environments: The standard is essential for manufacturers and users of hydraulic equipment operating in environments where fire safety and hydraulic fluid stability are paramount, such as steel mills, mining, and offshore installations.
- Quality Control for Fluid Manufacturers: Enables producers to consistently test and certify their HFAE fluid products to international benchmarks, supporting accurate labelling and user confidence.
- Procurement and Compliance: Assists purchasing managers and regulators in benchmarking products for compatibility, safety, and operational longevity based on emulsion stability performance.
- Research and Development: Provides a reliable framework for R&D teams to innovate or improve fire-resistant hydraulic fluids and to document performance comparably.
- Safety Assurance: Helps companies meet regulatory safety requirements by ensuring fluids remain stable, thereby reducing risks of system failure due to separation or component degradation.
Related Standards
- ISO 6743-4: Classifies lubricants and hydraulic fluids, including HFAE, and provides the overarching family classifications referenced in this standard.
- ISO 3170: Offers guidelines for the manual sampling of petroleum liquids, used here to ensure sample integrity.
- ISO 3696: Specifies the quality standards for demineralized water used in sample preparation.
- ISO 20783-2: Covers emulsion stability testing for fire-resistant fluids in category HFB, complementing the scope of Part 1.
- EN ISO 20783-1: The European adoption of the ISO standard, ensuring harmonization across EU member states.
SIST EN ISO 20783-1:2011 is a critical reference for organizations that prioritize fire safety, fluid performance, and regulatory compliance in hydraulic applications, supporting consistent evaluation and quality in petroleum-based emulsion systems.
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Frequently Asked Questions
SIST EN ISO 20783-1:2011 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Petroleum and related products - Determination of emulsion stability of fire-resistant fluids - Part 1: Fluids in category HFAE (ISO 20783-1:2011)". This standard covers: ISO 20783‑1:2011 specifies a test method to assess the stability of emulsions within the category HFAE, 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.
ISO 20783‑1:2011 specifies a test method to assess the stability of emulsions within the category HFAE, 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.
SIST EN ISO 20783-1:2011 is classified under the following ICS (International Classification for Standards) categories: 75.080 - Petroleum products in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 20783-1:2011 has the following relationships with other standards: It is inter standard links to SIST EN ISO 20783-1:2004, SIST ISO 3696:1995, SIST EN ISO 15792-3:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 20783-1:2011 is associated with the following European legislation: EU Directives/Regulations: 92/104/EC; Standardization Mandates: M/238. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN ISO 20783-1:2011 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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Petroleum and related products - Determination of emulsion stability of fire-resistant
fluids - Part 1: Fluids in category HFAE (ISO 20783-1:2011)
Mineralölerzeugnisse und verwandte Produkte - Bestimmung der Emulsionsstabilität von
schwer entflammbaren Flüssigkeiten - Teil 1: HFAE-Flüssigkeiten (ISO 20783-1:2011)
Pétrole et produits connexes - Détermination de la stabilité d'émulsions de fluides
difficilement inflammables - Partie 1: Fluides de catégorie HFAE (ISO 20783-1:2011)
Ta slovenski standard je istoveten z: EN ISO 20783-1:2011
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
January 2011
ICS 75.120 Supersedes EN ISO 20783-1:2003
English Version
Petroleum and related products - Determination of emulsion
stability of fire-resistant fluids - Part 1: Fluids in category HFAE
(ISO 20783-1:2011)
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 20783-1:2011) entflammbaren Flüssigkeiten - Teil 1: HFAE-Flüssigkeiten
(ISO 20783-1:2011)
This European Standard was approved by CEN on 10 January 2011.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20783-1:2011: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 20783-1:2011) has been prepared by Technical Committee ISO/TC 28 "Petroleum
products and lubricants" 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 July 2011, and conflicting national standards shall be withdrawn at the
latest by July 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 20783-1:2003.
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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 20783-1:2011 has been approved by CEN as a EN ISO 20783-1:2011 without any
modification.
INTERNATIONAL ISO
STANDARD 20783-1
Second edition
2011-01-15
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'émulsions de fluides difficilement inflammables —
Partie 1: Fluides de catégorie HFAE
Reference number
ISO 20783-1:2011(E)
©
ISO 2011
ISO 20783-1:2011(E)
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ISO 20783-1:2011(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
Bibliography.7
ISO 20783-1:2011(E)
Foreword
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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 al
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