1、Petroleum products Determination of the filterability of lubricating oilsPart 1: Procedure for oils in the presence of waterBS ISO 133571:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Petroleum products Determination of the filterability of lubricating
2、 oils Part 1:Procedure for oils in the presence of waterProduits ptroliers Dtermination de la filtrabilit des huiles lubrifiantes Partie 1: Mthode pour les huiles en prsence deauINTERNATIONALSTANDARDISO13357-1Second edition2017-05Reference numberISO 13357-1:2017(E)National forewordThis British Stand
3、ard is the UK implementation of ISO 133571:2017. It supersedes BS ISO 133571:2002, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee MCE/18/-/16, Hydraulic fluids.A list of organizations represented on this committee can be obtained on request to its sec
4、retary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 88672 0ICS 75.100Compliance with a British Standard cannot c
5、onfer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 133571:2017 ISO 2017Petroleum products Determination of
6、 the filterability of lubricating oils Part 1: Procedure for oils in the presence of waterProduits ptroliers Dtermination de la filtrabilit des huiles lubrifiantes Partie 1: Mthode pour les huiles en prsence deauINTERNATIONAL STANDARDISO13357-1Second edition2017-05Reference numberISO 13357-1:2017(E)
7、BS ISO 133571:2017ISO 13357-1:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll 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 mechanica
8、l, 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 ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, Switzerl
9、andTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 133571:2017ISO 13357-1:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or
10、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 ISOs member body in the country of the requester.ISO copy
11、right officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 13357-1:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Principle 25 Reagents and materials . 26 Apparatus
12、 . 37 Samples and sampling 58 Preparation of apparatus 59 Procedure. 610 Calculations 810.1 Stage I filterability 810.2 Stage II filterability 811 Expression of results 811.1 General . 811.2 Assessment of validity 812 Precision . 913 Test report . 9Annex A (informative) Suitable procedure for the ad
13、dition of graduations to a measuring cylinder .10Bibliography .12 ISO 2017 All rights reserved iiiContents PageBS ISO 133571:2017ISO 13357-1:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of
14、 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
15、, 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 are described in the ISO
16、/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 possibi
17、lity 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 p
18、atent 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 voluntary nature of standards, the meaning of ISO specific terms and expressions related to
19、 conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.The committee responsible for this document is ISO/TC 28, Petroleum and related prod
20、ucts: fuels and lubricants from natural or synthetic sources.This second edition cancels and replaces the first edition (ISO 13357-1:2002), of which it constitutes a minor revision including alternative membranes in order to enable the continued use of this document.A list of all parts in the ISO 13
21、357 series can be found on the ISO website.iv ISO 2017 All rights reservedBS ISO 133571:2017ISO 13357-1:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is
22、 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
23、 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 are described in the ISO/IEC Directives, Part 1. In particula
24、r 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 thi
25、s 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
26、.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 voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as in
27、formation about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.The committee responsible for this document is ISO/TC 28, Petroleum and related products: fuels and lubricants from natur
28、al or synthetic sources.This second edition cancels and replaces the first edition (ISO 13357-1:2002), of which it constitutes a minor revision including alternative membranes in order to enable the continued use of this document.A list of all parts in the ISO 13357 series can be found on the ISO we
29、bsite.iv ISO 2017 All rights reserved ISO 13357-1:2017(E)IntroductionAs the fluid in a hydraulic system acts as a lubricant to minimize wear of the components, it is important to reduce the concentrations of circulating hard contaminant particles. This is particularly necessary when the performance
30、of the system depends on the maintenance of small clearances and orifices. Removal of these contaminants is effected by the use of filters. The ability of a hydraulic fluid to pass through fine filters, without plugging them, is called its “filterability”. This document describes a laboratory test p
31、rocedure for assessing the filterability of mineral oils which have been heat-soaked in the presence of water. Filterability so determined is not a physical characteristic of the oil, but represents an estimation of its behaviour in service.This document describes two measurements, referred to as “s
32、tages”. The Stage I determination is based on a comparison of the mean flow rate of a fluid through a test membrane with its initial flow rate. Oils having good Stage I filterability, but only a poor Stage II performance (see below), would be unlikely to give performance problems in use, unless extr
33、emely fine system filters are utilized.The Stage II determination is based upon the ratio between the initial flow rate of fluid through the test membrane and the rate at the end of the test. It is considered that this part of the procedure is a more severe test, and is more sensitive to the presenc
34、e of gels and fine silts in the oil. Silts and gels may be present in an oil when it is produced, or could be formed as an oil ages, especially when hot. An oil with good Stage II filterability would be unlikely to give filtration problems even in the most extreme conditions, and with fine (less tha
35、n 5 m) filtration present. It would thus be suitable for use in more critical hydraulic and lubrication systems.The procedure has been evaluated with mineral oils up to ISO viscosity grade 100. There would appear to be no reason why it should not be used with oils of higher viscosity grade (ISO visc
36、osity grade 220 is a practical maximum), but the data obtained could not be claimed to be completely in accordance with this method. Similarly, it should be possible to extend the test procedure to fluids other than mineral oils. However, some fluids, e.g. fire-resistant fluids, will not be compatib
37、le with the specified test membranes, and the test could only be used for comparison purposes even when suitable membranes, with similar pore size/pore density characteristics to those specified in this procedure, have been identified. ISO 2017 All rights reserved vBS ISO 133571:2017BS ISO 133571:20
38、17Petroleum products Determination of the filterability of lubricating oils Part 1: Procedure for oils in the presence of waterWARNING The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated w
39、ith its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1 ScopeThis document specifies a procedure for the evaluation of the filterability of lubricating oils, parti
40、cularly those designed for hydraulic applications, in the presence of water. The procedure only applies to mineral-based oils, since fluids manufactured from other materials (e.g. fire-resistant fluids) may not be compatible with the specified test membranes. The range of application has been evalua
41、ted with oils of viscosity up to ISO viscosity grade (VG) 100, as defined in ISO 3448. Within the range described, the filterability as defined is not dependent on the viscosity of the oil. The procedure is not suitable for some hydraulic oils on which specific properties have been conferred by the
42、use of insoluble/partially soluble additives, or by particularly large molecular species.NOTE Filterability is a prime requirement for lubricating oils used in hydraulic systems because of the fine filters used in this application.This document defines a method for assessing the filterability of oil
43、s in the presence of contaminating water. It is noted that some oils will exhibit poorer filterability characteristics in these conditions. ISO 13357-21is used to investigate the filterability of an oil which is used in applications where the presence of water in the oil is unlikely. An oil which ha
44、s good filterability in the presence of contaminating water will not necessarily have equally good filterability in dry conditions. An oil having good filterability only when wet is unlikely to be generally acceptable.2 Normative referencesThe following documents are referred to in the text in such
45、a way that some or all of their content constitutes requirements 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 1219-1, Fluid power systems and components Graphical s
46、ymbols and circuit diagrams Part 1: Graphical symbols for conventional use and data-processing applicationsISO 3170, Petroleum liquids Manual samplingISO 3448, Industrial liquid lubricants ISO viscosity classificationISO 3696, Water for analytical laboratory use Specification and test methodsISO 478
47、8, Laboratory glassware Graduated measuring cylindersISO 6614:1994, Petroleum products Determination of water separability of petroleum oils and synthetic fluidsINTERNATIONAL STANDARD ISO 13357-1:2017(E) ISO 2017 All rights reserved 1BS ISO 133571:2017ISO 13357-1:2017(E)3 Terms and definitionsFor th
48、e purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso
49、 .org/ obp3.1filterabilitydimensionless number which is the ratio, expressed as a percentage, between volumes (Stage I) or flow rates (Stage II) at specified intervals in the test procedure3.2stage I filterabilityratio, expressed as a percentage, between 240 ml and the volume of oil actually filtered in the time that 240 ml would have theoretically taken, assuming no plugging of the membrane3.3stage II filterabilityratio, expressed as a percentage, between the flow rate near the start of t
