1、BSI Standards PublicationBS EN ISO 6743-4:2015Lubricants, industrial oils andrelated products (class L) ClassificationPart 4: Family H (Hydraulic systems)BS EN ISO 6743-4:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO6743-4:2015. It supersedes BS EN IS
2、O 6743-4:2001 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/18/-/16, Hydraulic fluids.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessarypro
3、visions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 78157 5ICS 75.120Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published u
4、nder the authority of theStandards Policy and Strategy Committee on 31 August 2015.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6743-4 August 2015 ICS 75.120 Supersedes EN ISO 6743-4:2001English Version Lubricants, industrial oils and
5、related products (class L) - Classification - Part 4: Family H (Hydraulic systems) (ISO 6743-4:2015) Lubrifiants, huiles industrielles et produits connexes (classe L) - Classification - Partie 4: Famille H (Systmes hydrauliques) (ISO 6743-4:2015) Schmierstoffe, Industriele und verwandte Erzeugnisse
6、(Klasse L) - Klassifizierung - Teil 4: Familie H (Hydraulische Systeme) (ISO 6743-4:2015) This European Standard was approved by CEN on 16 April 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
7、 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, Germ
8、an). 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
9、, 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 Unit
10、ed Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
11、ISO 6743-4:2015 EBS EN ISO 6743-4:2015EN ISO 6743-4:2015 (E) 3 European foreword This document (EN ISO 6743-4:2015) has been prepared by Technical Committee ISO/TC 28 “Petroleum products and lubricants“ in collaboration Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related
12、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 February 2016, and conflicting national standards s
13、hall be withdrawn at the latest by February 2016. 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 6743
14、-4:2001. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following c
15、ountries 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,
16、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 6743-4:2015 has been approved by CEN as EN ISO 6743-4:2015 without any modification. BS EN ISO 6743-4:2015ISO 6743-4:2015(E)Foreword iv1 Scope . 12 Normative
17、references 13 Explanation of symbols used . 14 Detailed classification . 2Bibliography 4 ISO 2015 All rights reserved iiiContents PageBS EN ISO 6743-4:2015ISO 6743-4:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO me
18、mber 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, governme
19、ntal 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.The procedures used to develop this document and those intended for its further maintenance
20、 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
21、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/
22、or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity as
23、sessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 28, Petroleum products and lubricants, Subcommittee SC 4, Classificati
24、ons and specifications.This third edition cancels and replaces the second edition (ISO 6743-4:1999), which has been technically revised with the following change: the table of classification now includes environmentally acceptable fluids.ISO 6743 consists of the following parts, under the general ti
25、tle Lubricants, industrial oils and related products (class L) Classification : Part 1: Family A (Total loss systems) Part 2: Family F (Spindle bearings, bearings and associated clutches) Part 3: Family D (Compressors) Part 4: Family H (Hydraulic systems) Part 5: Family T (Turbines) Part 6: Family C
26、 (Gears) Part 7: Family M (Metalworking) Part 8: Family R (Temporary protection against corrosion) Part 9: Family X (Greases) Part 10: Family Y (Miscellaneous) Part 11: Family P (Pneumatic tools) Part 12: Family Q (Heat transfer fluids)iv ISO 2015 All rights reservedBS EN ISO 6743-4:2015ISO 6743-4:2
27、015(E) Part 13: Family G (Slideways) Part 14: Family U (Heat treatment) Part 15: Family E (Internal combustion engine oils) Part 99: General ISO 2015 All rights reserved vBS EN ISO 6743-4:2015BS EN ISO 6743-4:2015Lubricants, industrial oils and related products (class L) Classification Part 4: Famil
28、y H (Hydraulic systems)1 ScopeThis part of ISO 6743 establishes the detailed classification of fluids of Family H (Hydraulic systems) which belong to class L (Lubricants, industrial oils, and related products). It is intended to be read in conjunction with ISO 6743-99. This classification system doe
29、s not include automotive brake fluids or aircraft hydraulic fluids.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references,
30、the latest edition of the referenced document (including any amendments) applies.ISO 3448, Industrial liquid lubricants ISO viscosity classificationISO 11158, Lubricants, industrial oils and related products (class L) Family H (hydraulic systems) Specifications for categories HH, HL, HM, HV and HGIS
31、O 12922, Lubricants, industrial oils and related products (class L) Family H (Hydraulic systems) Specifications for hydraulic fluids in categories HFAE, HFAS, HFB, HFC, HFDR and HFDUISO 15380, Lubricants, industrial oils and related products (class L) Family H (Hydraulic systems) Specifications for
32、categories HETG, HEPG, HEES and HEPR3 Explanation of symbols used3.1 This detailed classification of Family H has been established by defining the categories of products required for the main applications of the family and final sub-division by reference to composition of corresponding products.3.2
33、Each category is designated by a symbol consisting of a group of letters which, together, constitute a code.The first letter of the code (H) identifies the family of the product considered but any following letters taken separately have no significance of their own.NOTE The designation of each categ
34、ory can be supplemented by the addition of viscosity grades according to ISO 3448.3.3 In this classification system, products are designated in a uniform manner. For example, a particular product may be designated in complete form, i.e. ISO-L-HV 32, or in an abbreviated form, i.e. L-HV 32, the numbe
35、r indicating the viscosity according to ISO 3448.INTERNATIONAL STANDARD ISO 6743-4:2015(E) ISO 2015 All rights reserved 1BS EN ISO 6743-4:2015ISO 6743-4:2015(E)4 Detailed classificationThe detailed classification is shown in Table 1.2 ISO 2015 All rights reservedBS EN ISO 6743-4:2015ISO 6743-4:2015(
36、E)Table 1 Classification of hydraulic fluidsCode letterGeneral applicationsParticular applicationsMore specific applicationsComposition and propertiesSymbolISO-LTypicalapplicationsRemarksInternational StandardH HydraulicSystemsHydrostatic Non-inhibited refined mineral oilsHH ISO 11158Refined mineral
37、 oils with improved anti-rust and anti-oxidation propertiesHL ISO 11158Oils of HL type with improved anti-wear propertiesHMGeneral hydraulic systems which include highly loaded compo-nentsISO 11158Oils of HM type with improved viscosity/temperature proper-tiesHVConstruction and marine equipmentISO 1
38、1158Applications where environmen-tally acceptable fluids are requestedTriglycerides HETGGeneral hydraulic systemsISO 15380Polyglycols HEPGSynthetic esters HEESPolyalphaolefin and other synthetic hydro-carbonsHEPRHydraulic slideway systemsOils of HM type with anti-stick/slip prop-ertiesHGMachines wi
39、th combined hydraulic and plain bearing way lubrication systems where vibration or intermittent sliding (stick/slip) at low speed is to be minimisedThese fluids are intended to be multi-func-tional but they do not function success-fully under all hydrau-lic applica-tionsISO 11158Applications where f
40、ire-resistant fluids are requiredOil in water emulsions HFAETypically more than 95 % mass fraction of water.ISO 12922Chemical solutions in waterHFASTypically more than 95 % mass fraction of water.Water in oil emulsions HFBTypically more than 40 % mass fraction of water.Water polymer solu-tionsHFCTyp
41、ically more than 35 % mass fraction of water.Synthetic fluids con-taining no water and consisting phosphate estersHFDRSynthetic fluids con-taining no water and of other compositionHFDU ISO 2015 All rights reserved 3BS EN ISO 6743-4:2015ISO 6743-4:2015(E)Bibliography1 ISO 6743-99, Lubricants, industr
42、ial oils and related products (class L) Classification Part 99: General4 ISO 2015 All rights reservedBS EN ISO 6743-4:2015This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, i
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