ASTM_D_2265_-_22.pdf

Designation:D226522Standard Test Method forDropping Point of Lubricating Grease Over WideTemperature Range1This standard is issued under the fixed designation D2265;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers the determination of the drop-ping point of lubricating grease.1.2 WarningThe dropping point as measured by this testis an artificially corrected number that does not have anybearing on the performance of the grease at elevated tempera-ture.The dropping point as defined by this test method may notcorrelate with a value of the dropping point as determined byTest Method D566(ISO 2176).1.3This test method uses mercury thermometers.WARNINGMercury has been designated by many regula-tory agencies as a hazardous substance that can cause seriousmedical issues.Mercury,or its vapor,has been demonstrated tobe hazardous to health and corrosive to materials.Use cautionwhen handling mercury and mercury-containing products.Seethe applicable product Safety Data Sheet(SDS)for additionalinformation.The potential exists that selling mercury ormercury-containing products,or both,is prohibited by local ornational law.Users must determine legality of sales in theirlocation.The responsible subcommittee,D02.G0.03,continuesto explore alternatives to eventually replace the mercurythermometers.1.4This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D217 Test Methods for Cone Penetration of LubricatingGreaseD566 Test Method for Dropping Point of Lubricating GreaseD3244 Practice for Utilization of Test Data to DetermineConformance with SpecificationsE1 Specification for ASTM Liquid-in-Glass ThermometersE2251 Specification for Liquid-in-Glass ASTM Thermom-eters with Low-Hazard Precision Liquids2.2 ISO Standards:3ISO 2176 Petroleum products Lubricating grease Deter-mination of dropping point3.Terminology3.1 Definitions:3.1.1 lubricating grease,na semi-fluid to solid product ofa thickener in a liquid lubricant.3.1.1.1 DiscussionThe dispersion of the thickener forms atwo-phase system and immobilizes the liquid lubricant bysurface tension and other physical forces.Other ingredients arecommonly included to impart special properties.D2173.1.2 thickener,nin lubricating grease,a substance com-posed of finely-divided particles dispersed in a liquid to formthe products structure.3.1.2.1 DiscussionThickeners can be fibers(such as vari-ous metallic soaps)or plates or spheres(such as certainnon-soap thickeners),which are insoluble or,at most,only veryslightly soluble in the liquid lubricant.The general require-ments are that the solid particles be extremely small,uniformlydispersed,and capable of forming a relatively stable,gel-likestructure with the liquid lubricant.D2173.2 Definitions of Terms Specific to This Standard:1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.G0.03 on Physical Tests.Current edition approved April 1,2022.Published April 2022.Originallyapproved in 1964.Last previous edition approved in 2020 as D2265 20.DOI:10.1520/D2265-22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from International Organization for Standardization(ISO),ISOCentral Secretariat,BIBC II,Chemin de Blandonnet 8,CP 401,1214 Vernier,Geneva,Switzerland,http:/www.iso.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.13.2.1 dropping point,na numerical value assign