EN ISO 20623:2018

Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of lubricants - Four-ball method (European conditions) (ISO 20623:2017)

This document specifies procedures for the measurement of the extreme pressure (EP) and antiwear
properties of liquid lubricants (categories C, D, F, G, H, M, P of ISO 6743-99), lubricating greases
(ISO 6743-9, category X) and other consistent lubricants. The test conditions are not intended to
simulate particular service conditions, but to provide information over a range of standard conditions
for the purpose of research, development, quality control and fluid ranking. The output is used in
lubricant specifications.

Mineralölerzeugnisse und verwandte Produkte - Bestimmung der Hochdruck (EP)- und Verschleißschutzeigenschaften von Schmierstoffen - Verfahren mit dem Vierkugel-Apparat (Europäische Bedingungen) (ISO 20623:2017)

Dieses Dokument legt Verfahren für die Messung der Schweißkraft (EP-Verhalten) und Verschleiß-kennwerten von flüssigen Schmierstoffen (Kategorien C, D, F, G, H, M, P der ISO 6743 99), Schmierfette (ISO 6743 9, Kategorie X) und anderer konsistenter Schmierstoffe fest. Es ist nicht beabsichtigt, durch die Prüfbedingungen ein besonderes Betriebsverhalten zu simulieren, sondern Informationen über einen Bereich von Standardbedingungen für Forschungszwecke, zur Entwicklung, zur Qualitätskontrolle und zur Klassifizierung von Flüssigkeiten bereitzustellen. Die Ergebnisse werden zur Spezifizierung von Schmierstoffen verwendet.

Pétrole et produits connexes - Détermination des propriétés extrême pression et anti-usure des lubrifiants - Essai quatre billes (conditions Européennes) (ISO 20623:2017)

Naftni in sorodni proizvodi - Določanje nosilnih in protiobrabnih lastnosti maziv - Metoda s štirimi kroglicami (Four ball method) (evropski pogoji) (ISO 20623:2017)

Ta dokument določa postopke za merjenje nosilnih (EP) in protiobrabnih lastnosti tekočih maziv (kategorije C, D, F, G, H, M in P v standardu ISO 6743-99), mazalnih masti (standard ISO 6743-9, kategorija X) in drugih skladnih maziv. Namen preskusnih pogojev ni simulirati določene pogoje delovanja, temveč zagotoviti informacije o vrsti običajnih pogojev za namene raziskovanja, razvoja, kontrole kakovosti in razvrščanja maziv. Rezultati se uporabljajo za specifikacije maziv.

General Information

• Status: Published
• Publication Date: 23-Jan-2018
• Withdrawal Date: 30-Jul-2018
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: CEN/TC 19 - Petroleum products, lubricants and related products
• Drafting Committee: CEN/TC 19/WG 28 - Fire-resistant hydraulic fluids
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 24-Jan-2018
• Completion Date: 24-Jan-2018
• Directive: 92/104/EC - Council Directive 92/104/EEC of 3 December 1992 on the minimum requirements for improving the safety and health protection of workers in surface and underground mineral-extracting industries (twelfth individual Directive within the meaning of Article 16 (1) of Directive 89/391/EEC)
• Mandate: M/238 - Mandate to CEN for standardization in the field of fire-resistant hydraulic fluids used for power transmission and control (hydrostatic and hydrokinetic)
• Ref Project: SIST EN ISO 20623:2018 - Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of fluids - Four ball method (European conditions) (ISO 20623:2017)

Relations

• Replaces: EN ISO 20623:2003 - Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of fluids - Four ball method (European conditions) (ISO 20623:2003)
• Effective Date: 31-Jan-2018

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2018
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SIST EN ISO 20623:2004
1DIWQLLQVRURGQLSURL]YRGL'RORþDQMHQRVLOQLKLQSURWLREUDEQLKODVWQRVWLPD]LY
0HWRGDVãWLULPLNURJOLFDPL)RXUEDOOPHWKRGHYURSVNLSRJRML,62
Petroleum and related products - Determination of the extreme-pressure and anti-wear
properties of fluids - Four ball method (European conditions) (ISO 20623:2017)
Mineralölerzeugnisse und verwandte Produkte - Bestimmung der EP-Eigenschaften und
Verschleißkennwerte von Schmierstoffen - Verfahren mit dem Vierkugel-Apparat
(Europäische Bedingungen) (ISO 20623:2017)
Pétrole et produits connexes - Détermination des propriétés extrême pression et anti-
usure des fluides - Essai quatre billes (conditions européennes) (ISO 20623:2017)
Ta slovenski standard je istoveten z: EN ISO 20623:2018
ICS:
75.100 Maziva Lubricants, industrial oils and
related products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20623
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2018
EUROPÄISCHE NORM
ICS 75.100 Supersedes EN ISO 20623:2003
English Version
Petroleum and related products - Determination of the
extreme-pressure and anti-wear properties of lubricants -
Four-ball method (European conditions) (ISO
20623:2017)
Pétrole et produits connexes - Détermination des Mineralölerzeugnisse und verwandte Produkte -
propriétés extrême pression et anti-usure des Bestimmung der EP-Eigenschaften und
lubrifiants - Essai quatre billes (conditions Verschleißkennwerte von Schmierstoffen - Verfahren
Européennes) (ISO 20623:2017) mit dem Vierkugel-Apparat (Europäische
Bedingungen) (ISO 20623:2017)
This European Standard was approved by CEN on 6 December 2017.

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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20623:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 20623:2018) has been prepared by Technical Committee ISO/TC 28 "Petroleum
and related products, fuels and lubricants from natural or synthetic sources" 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 2018, and conflicting national standards shall be
withdrawn at the latest by July 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 20623:2003.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20623:2017 has been approved by CEN as EN ISO 20623:2018 without any modification.

INTERNATIONAL ISO
STANDARD 20623
Second edition
2017-12
Petroleum and related products —
Determination of the extreme-
pressure and anti-wear properties
of lubricants — Four-ball method
(European conditions)
Pétrole et produits connexes — Détermination des propriétés extrême
pression et anti-usure des lubrifiants — Essai quatre billes (conditions
Européennes)
Reference number
ISO 20623:2017(E)
©
ISO 2017
ISO 20623:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 20623:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Cleaning solvents . 2
6 Apparatus . 3
7 Samples and sampling . 5
8 Preparation of apparatus . 5
9 General procedure . 5
10 Test procedures . 7
10.1 Test A — Load-Wear Index (LWI) . 7
10.2 Test B — Wear-load curve, welding load, and initial seizure load . 7
10.3 Test C — Wear test . 8
11 Calculations. 9
11.1 General . 9
11.2 Test A — Load wear index. 9
11.3 Test B — Wear-load curve, initial seizure load .10
11.4 Test C — Wear test .10
12 Expression of results .11
13 Precision .11
13.1 General .11
13.2 Repeatability .11
13.3 Reproducibility .11
14 Test report .11
Annex A (normative) Test ball specifications .13
Annex B (normative) Mean Hertz Load data sheet .14
Bibliography .16
ISO 20623:2017(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
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
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