SIST EN ISO 12922:2013

SLOVENSKI STANDARD
SIST EN ISO 12922:2013
01-februar-2013
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SIST EN ISO 12922:2002
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Lubricants, industrial oils and related products (class L) - Family H (Hydraulic systems) -
Specifications for hydraulic fluids in categories HFAE, HFAS, HFB, HFC, HFDR and
HFDU (ISO 12922:2012)
Schmierstoffe, Industrieöle und verwandte Produkte (Klasse L) - Familie H (Hydraulische
Systeme) - Anforderungen an Druckflüssigkeiten in den Kategorien HFAE, HFAS, HFB,
HFC, HFDR und HFDU (ISO 12922:2012)
Lubrifiants, huiles industrielles et produits connexes (classe L) - Famille H (Systèmes
hydrauliques) - Spécifications applicables aux fluides hydrauliques des catégories HFAE,
HFAS, HFB, HFC, HFDR et HFDU (ISO 12922:2012)
Ta slovenski standard je istoveten z: EN ISO 12922:2012
ICS:
75.120 +LGUDYOLþQLIOXLGL Hydraulic fluids
SIST EN ISO 12922:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 12922:2013

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SIST EN ISO 12922:2013


EUROPEAN STANDARD
EN ISO 12922

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2012
ICS 75.120 Supersedes EN ISO 12922:2002
English Version
Lubricants, industrial oils and related products (class L) - Family
H (Hydraulic systems) - Specifications for hydraulic fluids in
categories HFAE, HFAS, HFB, HFC, HFDR and HFDU (ISO
12922:2012)
Lubrifiants, huiles industrielles et produits connexes (classe Schmierstoffe, Industrieöle und verwandte Produkte
L) - Famille H (Systèmes hydrauliques) - Spécifications (Klasse L) - Familie H (Hydraulische Systeme) -
applicables aux fluides hydrauliques des catégories HFAE, Anforderungen an Druckflüssigkeiten in den Kategorien
HFAS, HFB, HFC, HFDR et HFDU (ISO 12922:2012) HFAE, HFAS, HFB, HFC, HFDR und HFDU (ISO
12922:2012)
This European Standard was approved by CEN on 1 December 2012.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12922:2012: E
worldwide for CEN national Members.

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SIST EN ISO 12922:2013
EN ISO 12922:2012 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 12922:2013
EN ISO 12922:2012 (E)
Foreword
This document (EN ISO 12922:2012) 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 June 2013, and conflicting national standards shall be withdrawn at
the latest by June 2013.
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 12922:2002.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 12922:2012 has been approved by CEN as a EN ISO 12922:2012 without any modification.

3

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SIST EN ISO 12922:2013

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SIST EN ISO 12922:2013

INTERNATIONAL ISO
STANDARD 12922
Second edition
2012-12-01

Lubricants, industrial oils and related
products (class L) — Family H (Hydraulic
systems) — Specifications for hydraulic
fluids in categories HFAE, HFAS, HFB,
HFC, HFDR and HFDU
Lubrifiants, huiles industrielles et produits connexes (classe L) —
Famille H (Systèmes hydrauliques) — Spécifications applicables aux
fluides hydrauliques des catégories HFAE, HFAS, HFB, HFC, HFDR et
HFDU




Reference number
ISO 12922:2012(E)
©
ISO 2012

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SIST EN ISO 12922:2013
ISO 12922:2012(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2012
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 2012 – All rights reserved

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SIST EN ISO 12922:2013
ISO 12922:2012(E)
Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Sampling.3
4 Requirements for fire-resistant hydraulic fluids and less-flammable hydraulic fluids.3
Annex A (informative) Spray ignition characteristics .9
Bibliography.10

© ISO 2012 – All rights reserved iii

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SIST EN ISO 12922:2013
ISO 12922:2012(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 12922 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants,
Subcommittee SC 4, Classifications and specifications.
This second edition cancels and replaces the first edition (ISO 12922:1999), which has been technically
revised. It also incorporates the Technical Corrigendum ISO 12922:1999/Cor.1:2001.

iv © ISO 2012 – All rights reserved

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SIST EN ISO 12922:2013
INTERNATIONAL STANDARD ISO 12922:2012(E)

Lubricants, industrial oils and related products (class L) —
Family H (Hydraulic systems) — Specifications for hydraulic
fluids in categories HFAE, HFAS, HFB, HFC, HFDR and HFDU
WARNING — The handling and use of products as specified in this International Standard can be
hazardous if suitable precautions are not observed. 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 the minimum requirements of unused fire-resistant and less-flammable
hydraulic fluids for hydrostatic and hydrodynamic systems in general industrial applications. It is not intended
for use in aerospace or power-generation applications, where different requirements apply. It provides
guidance for suppliers and end users of these less hazardous fluids and to the manufacturers of hydraulic
equipment in which they are used.
Of the categories covered by ISO 6743-4, which classifies the different types of fluids used in hydraulic
applications, only the following are detailed in this International Standard: HFAE, HFAS, HFB, HFC, HFDR
and HFDU.
Types HFAE, HFAS, HFB, HFC and HFDR are “fire-resistant” fluids as defined by ISO 5598. Most HFDU
fluids, while displaying an improvement in combustion behaviour over mineral oil, fall outside this definition
and are more appropriately considered “less-flammable” fluids.
NOTE For the purposes of this International Standard, the terms “% (m/m)” and “% (V/V)” are used to represent,
respectively, the mass fraction and the volume faction of a material.
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.
ISO 760:1978, Determination of water — Karl Fischer method (General method)
ISO 2160:1998, Petroleum products — Corrosiveness to copper — Copper strip test
ISO 3104:1994, Petroleum products — Transparent and opaque liquids — Determination of kinematic
viscosity and calculation of dynamic viscosity
ISO 3170:2004, Petroleum liquids — Manual sampling
ISO 3448:1992, Industrial liquid lubricants — ISO viscosity classification
ISO 3675:1998, Crude petroleum and liquid petroleum products — Laboratory determination of density —
Hydrometer method
© ISO 2012 – All rights reserved 1

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SIST EN ISO 12922:2013
ISO 12922:2012(E)
ISO 3733:1999, Petroleum products and bituminous materials — Determination of water — Distillation method
ISO 4259:2006, Petroleum products — Determination and application of precision data in relation to methods
of test
ISO 4263-2:2003, Petroleum and related products — Determination of the ageing behaviour of inhibited oils
and fluids — TOST test — Part 2: Procedure for category HFC hydraulic fluids
ISO 4263-3:2010, Petroleum and related products — Determination of the ageing behaviour of inhibited oils
and fluids using the TOST test — Part 3: Anhydrous procedure for synthetic hydraulic fluids
ISO 4404-1:2012, Petroleum and related products — Determination of the corrosion resistance of fire-
resistant hydraulic fluids — Part 1: Water-containing fluids
ISO 4404-2:2010, Petroleum and related products — Determination of the corrosion resistance of fire-
resistant hydraulic fluids — Part 2: Non-aqueous fluids
ISO 5598:2008, Fluid power systems and components — Vocabulary
ISO 6072:2011, Rubber — Compatibility between hydraulic fluids and standard elastomeric materials
ISO 6247:1998, Petroleum products — Determination of foaming characteristics of lubricating oils
ISO 6296:2000, Petroleum products — Determination of water content — Potentiometric Karl Fischer titration
method
ISO 6618:1997, Petroleum products and lubricants — Determination of acid or base number — Colour-
indicator titration method
ISO 6619:1988, Petroleum products and lubricants — Neutralization number — Potentiometric titration
method
ISO 6743-4:1999, Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H
(Hydraulic systems)
ISO 7120:1987, Petroleum products and lubricants — Petroleum oils and other fluids — Determination of rust-
preventing characteristics in the presence of water
ISO 7745:2010, Hydraulic fluid power — Fire-resistant (FR) fluids — Requirements and guidelines for use
ISO 9120:1997, Petroleum and related products — Determination of air-release properties of steam turbine
and other oils — Impinger method
ISO 12185:1996, Crude petroleum and petroleum products — Determination of density — Oscillating U-tube
method
ISO 14635-1:2000, Gears — FZG test procedures — Part 1: FZG test method A/8,3/90 for relative scuffing
load-carrying capacity of oils
ISO 14935:1998, Petroleum and related products — Determination of wick flame persistence of fire-resistant
fluids
ISO 15029-1:1999, Petroleum and related products — Determination of spray ignition characteristics of fire-
resistant fluids — Part 1: Spray flame persistence — Hollow-cone nozzle method
ISO/TS 15029-2:2012, Petroleum and related products — Determination of spray ignition characteristics of
fire-resistant fluids — Part 2: Spray test — Stabilized flame heat release method
ISO 20623:2003, Petroleum and related products — Determination of the extreme-pressure and anti-wear
properties of fluids — Four ball method (European conditions)
2 © ISO 2012 – All rights reserved

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SIST EN ISO 12922:2013
ISO 12922:2012(E)
ISO 20763:2004, Petroleum and related products — Determination of anti-wear properties of hydraulic fluid —
Vane pump method
ISO 20764:2003, Petroleum and related products — Preparation of a test portion of high-boiling liquids for the
determination of water content — Nitrogen purge method
ISO 20783-1:2011, Petroleum and related products — Determination of emulsion stability of fire-resistant
fluids — Part 1: Fluids in category HFAE
ISO 20783-2:2003, Petroleum and related products — Determination of emulsion stability of fire-resistant
fluids — Part 2: Fluids in category HFB
ISO 20823:2003, Petroleum and related products — Determination of the flammability characteristics of fluids
in contact with hot surfaces — Manifold ignition test
ISO 20843:2011, Petroleum and related products — Determination of pH of fire-resistant fluids within
categories HFAE, HFAS and HFC
ISO 20844:2004, Petroleum and related products — Determination of the shear stability of polymer-containing
oils using a diesel injector nozzle
EN 14832:2005, Petroleum and related products — Determination of the oxidation stability and corrosivity of
fire-resistant phosphate ester fluids
EN 14833:2005, Petroleum and related products — Determination of the hydrolytic stability of fire-resistant
phosphate ester fluids
3 Sampling
Sampling of hydraulic fluids for the purposes of this International Standard shall be carried out in accordance
with the appropriate procedure described in ISO 3170. A representative sample shall be evaluated.
Any drum, barrel, tanker, compartment or any type of container delivered to the end user may be sampled and
analysed at the request of the purchaser.
4 Requirements for fire-resistant hydraulic fluids and less-flammable hydraulic
fluids
For the purposes of this International Standard, fluids shall be classified according to ISO 6743-4. Guidelines
for their selection and use can be found in ISO 7745 and CEN/TR 14489. The latter also includes information
on health and safety requirements.
Where applicable and when tested in accordance with the specified methods, fluids shall meet the limit values
indicated in Table 1 (HFAE and HFAS fluids), Table 2 (HFB and HFC fluids) and Table 3 (HFDR and HFDU
fluids). It should be noted that a significant variation exists in the level of fire resistance displayed by the
different fluid types.
The majority of test methods specified within Tables 1 to 3 contain a statement of precision (repeatability and
reproducibility). ISO 4259, which covers the use of precision data in the interpretation of test results, shall be
used in cases of dispute.
© ISO 2012 – All rights reserved 3

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SIST EN ISO 12922:2013
ISO 12922:2012(E)
Table 1 — Requirements for fluids in categories HFAE and HFAS

Specification
Characteristic or test Unit Test method
abcd abcd
Category HFAE Category HFAS
Composition: oil-in-water emulsions chemical solutions in water
typically containing typically containing
≥ 95 % water (m/m), (+5 °C ≥ 95 % water (m/m), (+5 °C

to +50 °C; ISO 7745) to +50 °C; ISO 7745)
e f
Appearance
2
Viscosity at 40 °C . maximum mm/s 5 5
...