SIST EN ISO 20823:2003
(Main)Petroleum and related products - Determination of the flammability characteristics of fluids in contact with hot surfaces - Manifold ignition test (ISO 20823:2003)
Petroleum and related products - Determination of the flammability characteristics of fluids in contact with hot surfaces - Manifold ignition test (ISO 20823:2003)
ISO 20823:2003 specifies a test method to determine the relative flammability of fluids when contacted with a hot metal surface at a fixed temperature, but it is also possible to gauge fluid ignition temperatures by adjustment of the manifold temperature.
It is primarily used is to assess the resistance to ignition of fire-resistant hydraulic fluids which are, by definition, difficult to ignite.
It may be used with other types of more flammable fluids at lower surface temperatures, but this could significantly increase the hazards of this procedure.
Mineralölerzeugnisse und verwandte Produkte - Bestimmung der Entflammbarkeits-Charakteristik von Flüssigkeiten bei Kontakt mit heißen Oberflächen - Zündverfahren (ISO 20823:2003)
Diese Internationale Norm beschreibt ein Prüfverfahren zur Bestimmung der relativen Entflammbarkeit von Flüssigkeiten beim Auftreffen auf heiße, metallische Oberflächen bei einer fest eingestellten Temperatur. Durch Anpassung der Oberflächentemperatur besteht ebenfalls die Möglichkeit, die Zündtemperatur von Flüssigkeiten anzuzeigen.
Die Hauptanwendung besteht in der Bewertung der Zündhemmung schwerentflammbarer Druckflüssigkeiten, welche durch Definition schwer entzündbar sind.
Diese Norm kann auch für andere Typen entflammbarer Flüssigkeiten bei niedrigeren Oberflächentemperaturen angewendet werden. Dabei ist jedoch mit einem deutlich zunehmenden Anstieg der Brandgefahr während der Prüfung zu rechnen.
ANMERKUNG Dieses Prüfverfahren ist in ISO 12922:1999, Lubricants, industrial oils and related products (class L) - Family H (Hydraulic systems) - Specifications for categories HFAE, HFAS, HFB, HFC, HFDR and HFDU als Prüfung der Schwerentflammbarkeit vorgeschrieben
Pétrole et produits connexes - Détermination des caractéristiques d'inflammabilité de fluides au contact de surfaces chaudes - Essai d'inflammation sur métal chaud (ISO 20823:2003)
L'ISO 20823:2003 spécifie une méthode d'essai qui a pour but de déterminer les caractéristiques d'inflammabilité relative des fluides quand ils sont mis au contact d'une surface métallique chaude à une température définie, mais il est également possible d'évaluer la température d'inflammation d'un fluide en ajustant la température du métal.
Elle est particulièrement utilisée pour évaluer la résistance à l'inflammation des fluides hydrauliques difficilement inflammables, qui sont par définition difficiles à enflammer.
Elle peut être utilisée avec d'autres types de fluides plus inflammables à des températures de surface inférieures, mais ceci peut accroître considérablement les risques liés à la méthode.
Nafta in naftni proizvodi – Določanje lastnosti gorljivosti tekočin v stiku z vročimi površinami – Preskus vžiganja (ISO 20823:2003)
General Information
- Status
- Published
- Publication Date
- 31-Oct-2003
- Technical Committee
- NAD - Petroleum products, lubricants and related products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Nov-2003
- Due Date
- 01-Nov-2003
- Completion Date
- 01-Nov-2003
Overview
EN ISO 20823:2003 (ISO 20823:2003) defines the manifold ignition test for determining the flammability characteristics of petroleum-related fluids when they contact hot metal surfaces. The method measures relative resistance to ignition - primarily for fire‑resistant hydraulic fluids - by dispensing a controlled test portion onto a heated simulated manifold and observing flash or sustained burning. The procedure can also be used to gauge ignition temperatures by changing the manifold temperature, but doing so for more flammable fluids increases hazard.
Key topics and technical requirements
- Test principle: A 10 ml test portion is dispensed onto a heated tube and the spray is observed for flash or burning on the tube and in the drip tray.
- Standard test temperature: Manifold surface nominally at 700 °C ± 5 °C (other temperatures may be used to determine ignition points).
- Dispensing: 10 ml ± 0.5 ml delivered at a controlled rate so the portion is expelled in 40–60 s from a dispenser mounted 300 mm above the tube (height recorded to nearest 5 mm).
- Apparatus: Simulated manifold (corrosion‑resistant steel tube ~75 mm OD, sandblasted), internal heater, temperature sensors in contact with the tube, ventilated fire‑resistant enclosure, and a drip tray.
- Preparation and safety: Tube cleaning with steel wool and solvent; samples mixed per ISO 3170 sampling guidance. The standard includes a clear safety warning - testing may involve hazardous materials and operations; appropriate ventilation and safety controls are required.
- Result categories:
- I(T) - flashes or burns on the tube only (does not continue burning in tray)
- I(D) - flashes/burns and continues to burn in the tray
- N - no flash or burn (may be reported as “pass”)
- Repeatability: Three tests at different positions (≥50 mm apart) on the same cleaned tube; laboratories should implement internal quality‑control procedures because conventional precision statistics are not specified.
Applications and users
- Practical use: Assessing ignition resistance of fire‑resistant hydraulic fluids, supporting product development, safety assessments, material selection and regulatory compliance where hot‑surface ignition risk is a concern.
- Who uses it:
- Third‑party test laboratories and certification bodies
- Hydraulic fluid manufacturers and R&D teams
- Safety and reliability engineers in industrial, aerospace, and marine sectors
- Procurement and quality managers specifying fluids for equipment exposed to hot surfaces
- Caution: Use with more flammable fluids is possible at lower manifold temperatures but significantly increases hazard and requires extra controls.
Related standards
- ISO 3170 - Petroleum liquids - Manual sampling (referenced for sampling)
- ISO 12922:1999 - Lubricants and hydraulic systems (procedure reference for family H fluids)
- Prepared under ISO/TC 28 (Petroleum products and lubricants)
EN ISO 20823:2003 provides a practical, standardized method to evaluate hot‑surface ignitability of hydraulic and related fluids, enabling informed safety decisions and product comparison when managing fire risks from fluids contacting hot metal surfaces.
Frequently Asked Questions
SIST EN ISO 20823:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Petroleum and related products - Determination of the flammability characteristics of fluids in contact with hot surfaces - Manifold ignition test (ISO 20823:2003)". This standard covers: ISO 20823:2003 specifies a test method to determine the relative flammability of fluids when contacted with a hot metal surface at a fixed temperature, but it is also possible to gauge fluid ignition temperatures by adjustment of the manifold temperature. It is primarily used is to assess the resistance to ignition of fire-resistant hydraulic fluids which are, by definition, difficult to ignite. It may be used with other types of more flammable fluids at lower surface temperatures, but this could significantly increase the hazards of this procedure.
ISO 20823:2003 specifies a test method to determine the relative flammability of fluids when contacted with a hot metal surface at a fixed temperature, but it is also possible to gauge fluid ignition temperatures by adjustment of the manifold temperature. It is primarily used is to assess the resistance to ignition of fire-resistant hydraulic fluids which are, by definition, difficult to ignite. It may be used with other types of more flammable fluids at lower surface temperatures, but this could significantly increase the hazards of this procedure.
SIST EN ISO 20823:2003 is classified under the following ICS (International Classification for Standards) categories: 13.220.40 - Ignitability and burning behaviour of materials and products; 75.080 - Petroleum products in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 20823:2003 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.
You can purchase SIST EN ISO 20823:2003 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
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Petroleum and related products - Determination of the flammability characteristics of
fluids in contact with hot surfaces - Manifold ignition test (ISO 20823:2003)
Mineralölerzeugnisse und verwandte Produkte - Bestimmung der Entflammbarkeits-
Charakteristik von Flüssigkeiten bei Kontakt mit heißen Oberflächen - Zündverfahren
(ISO 20823:2003)
Pétrole et produits connexes - Détermination des caractéristiques d'inflammabilité de
fluides au contact de surfaces chaudes - Essai d'inflammation sur métal chaud (ISO
20823:2003)
Ta slovenski standard je istoveten z: EN ISO 20823:2003
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
75.080 Naftni proizvodi na splošno Petroleum products in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL ISO
STANDARD 20823
First edition
2003-08-01
Petroleum and related products —
Determination of the flammability
characteristics of fluids in contact with
hot surfaces — Manifold ignition test
Pétrole et produits connexes — Détermination des caractéristiques
d'inflammabilité de fluides au contact de surfaces chaudes — Essai
d'inflammation sur métal chaud
Reference number
ISO 20823:2003(E)
©
ISO 2003
ISO 20823:2003(E)
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ISO 20823:2003(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 20823 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants.
INTERNATIONAL STANDARD ISO 20823:2003(E)
Petroleum and related products — Determination of the
flammability characteristics of fluids in contact with hot
surfaces — Manifold ignition test
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 test method to determine the relative flammability of fluids when
contacted with a hot metal surface at a fixed temperature, but it is also possible to gauge fluid ignition
temperatures by adjustment of the manifold temperature.
It is primarily used to assess the resistance to ignition of fire-resistant hydraulic fluids which are, by definition,
difficult to ignite.
It may be used with other types of more flammable fluids at lower surface temperatures, but this could
significantly increase the hazards of this procedure.
NOTE The procedure given in this International Standard is specified in ISO 12922:1999, Lubricants, industrial oils
and related products (class L) — Family H (Hydraulic systems) — Specifications for categories HFAE, HFAS, HFB, HFC,
HFDR and HFDU.
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.
1)
ISO 3170:— , Petroleum liquids — Manual sampling
3 Principle
A 10 ml test portion of fluid is dropped from a predetermined height and at a specified rate, onto a tube heated
to 700 °C, or another temperature in a series. The resulting spray is examined for flash or burn, both on the
tube and after dripping from the tube.
1)
To be published. (Revision of ISO 3170:1988)
ISO 20823:2003(E)
4 Reagents and materials
4.1 Steel wool
4.2 Absorbent cotton (cotton wool)
4.3 Cleaning solvent: any suitable light hydrocarbon solvent for wiping the tube.
NOTE 2,2,4-trimethylpentane, heptane or petroleum spirit boiling between 60 °C and 80 °C are suitable.
5 Apparatus
5.1 Simulated manifold test rig
5.1.1 General
The rig consists of a heated simulated manifold supported in a box frame, and is illustrated in Figure 1. It shall
be located in a fire-resistant enclosure with adequate ventilation to remove toxic and/or noxious combustion or
decomposition products.
5.1.2 Manifo
...
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