EN ISO 20623:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Minaralölerzeugnisse und verwandte Produkte - Bestimmung der EP-Eigenschaften und Verschleißkennwerte von Flüssigkeiten - Verfahren mit dem 4-Kugel-Apparat (Europäische Bedingungen) (ISO 20623:2003)Pétrole et produits connexes - Détermination des propriétés extreme pression et anti-usure des fluides - Essai a quatre billes (conditions européennes) (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)75.100MazivaLubricants, industrial oils and related productsICS:Ta slovenski standard je istoveten z:EN ISO 20623:2003SIST EN ISO 20623:2004en01-julij-2004SIST EN ISO 20623:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 20623December 2003ICS 75.100English versionPetroleum and related products - Determination of the extreme-pressure and anti-wear properties of fluids - Four ball method(European conditions) (ISO 20623:2003)Pétrole et produits connexes - Détermination des propriétésextrême pression et anti-usure des fluides - Essai à quatrebilles (conditions européennes) (ISO 20623:2003)Minaralölerzeugnisse und verwandte Produkte -Bestimmung der EP-Eigenschaften undVerschleißkennwerte von Flüssigkeiten - Verfahren mitdem 4-Kugel-Apparat (Europäische Bedingungen) (ISO20623:2003)This European Standard was approved by CEN on 10 November 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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 UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 20623:2003: ESIST EN ISO 20623:2004

2004-03-03ForewordThis document (EN ISO 20623:2003) 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 ofan identical text or by endorsement, at the latest by June 2004, and conflicting nationalstandards shall be withdrawn at the latest by June 2004.According to the CEN/CENELEC Internal Regulations, the national standards organizations ofthe following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland andthe United Kingdom.Endorsement noticeThe text of ISO 20623:2003 has been approved by CEN as EN ISO 20623:2003 without anymodifications.NOTE
Normative references to International Standards are listed in Annex ZA (normative).SIST EN ISO 20623:2004

Reference numberISO 20623:2003(E)© ISO 2003
INTERNATIONAL STANDARD ISO20623First edition2003-12-01Petroleum and related products — Determination of the extreme-pressure and anti-wear properties of fluids — Four ball method (European conditions) Pétrole et produits connexes — Détermination des propriétés extrême pression et anti-usure des fluides — Essai quatre billes (conditions européennes)
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ISO 20623:2003(E) © ISO 2003 — All rights reserved iii Contents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Terms and definitions.1 4 Principle.2 5 Reagents and materials.3 5.1 Cleaning solvents.3 6 Apparatus.3 6.1 Four-ball extreme-pressure lubricant testing machine.3 6.2 Friction recording device (optional).5 6.3 Loading discs.5 6.4 Microscope.5 6.5 Timer.5 6.6 Test balls.6 6.7 Assembly device.6 7 Samples and sampling.6 8 Preparation of apparatus.6 9 General procedure.6 10 Test procedures.7 10.1 Mean Hertz load (MHL).7 10.2 Wear-load curve, welding load, flash temperature parameter and initial seizure load.8 10.3 Wear test.8 11 Calculations.8 11.1 General.8 11.2 Mean Hertz load.8 11.3 Wear-load curve, flash temperature parameter and initial seizure load.9 12 Expression of results.10 13 Precision.10 13.1 General.10 13.2 Repeatability.11 13.3 Reproducibility.11 14 Test report.11 Annex A (normative)
Mean Hertz load data sheet.12 Annex B (normative)
Calibration of friction recorder springs.14 Bibliography.17
ISO 20623:2003(E) iv © ISO 2003 — All rights reserved 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 20623 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants.
INTERNATIONAL STANDARD ISO 20623:2003(E) © ISO 2003 — All rights reserved 1 Petroleum and related products — Determination of the extreme-pressure and anti-wear properties of fluids — Four ball method (European conditions)
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 to determine the applicability of regulatory limitations prior to use. 1 Scope This International Standard specifies procedures for the measurement of the extreme-pressure (EP) and anti-wear properties of lubricating oils and fluids by means of the four ball machine. The conditions of test are those that apply in Europe and other areas that have similar electrical supply characteristics (200 V to 250 V, 50 Hz). In North America, the conditions of test are slightly different, but provide a similar ranking of the lubricating properties of fluids. 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 specifica
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