1、Designation:D500110(Reapproved 2014)An American National StandardStandard Test Method forMeasurement of Lubricity of Aviation Turbine Fuels by theBall-on-Cylinder Lubricity Evaluator(BOCLE)1This standard is issued under the fixed designation D5001;the number immediately following the designation ind
2、icates 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
3、U.S.Department of Defense.1.Scope1.1 This test method covers assessment of the wear aspectsof the boundary lubrication properties of aviation turbine fuelson rubbing steel surfaces.1.1.1 This test method incorporates two procedures,oneusing a semi-automated instrument and the second a fullyautomated
4、 instrument.Either of the two instruments may beused to carry out the test.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address the safetyconcerns,if any,associated with its use.It is
5、the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D4306 Practice for Aviation Fuel Sample Containers forTests Affected by Trace Contaminati
6、onD6708 Practice for Statistical Assessment and Improvementof Expected Agreement Between Two Test Methods thatPurport to Measure the Same Property of a Material2.2 Military Specification:3MIL-I-25017 Inhibitor,Corrosion/Lubricity Improver,FuelSoluble2.3 American Iron and Steel Institute Standard:4AI
7、SI E-52100 Chromium Alloy Steel2.4 ISO Standard:5ISO 3290-1:2008 Rolling bearings-Balls-Part 1:Steelballs2.5 Society of Automotive Engineers Standard:6SAE 8720 Steel3.Terminology3.1 Definitions:3.1.1 lubricityqualitative term describing the ability of afluid to minimize friction between,and damage t
8、o,surfaces inrelative motion under load.3.1.1.1 DiscussionIn this test method,the lubricity of afluid is defined in terms of a wear scar,in millimeters,produced on a loaded stationary ball from contact with afluid-wetted rotating cylindrical test ring operating underclosely defined and controlled co
9、nditions.3.1.2 wear scarin the liquid fuels industry,average diam-eter of a worn and abraded area,measured in two specifieddirections,produced on a test ball under defined conditions.3.1.2.1 DiscussionThe wear scar generated by TestMethod D5001 is often referred to as the BOCLE wear scar.3.2 Abbrevi
10、ations:3.2.1 BOCLEBall On Cylinder Lubricity Evaluator3.2.2 HRCRockwell Hardness“C”scale.3.2.3 WSDWear Scar Diameter4.Summary of Test Method4.1 The fluid under test is placed in a test reservoir in whichatmospheric air is maintained at 10%relative humidity.Anon-rotating steel ball is held in a verti
11、cally mounted chuck andforced against the outside diameter of an axially mounted1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.J0.04 on Additives and Electrical Properties.Current
12、edition approved Oct.1,2014.Published November 2014.Originallyapproved in 1989.Last previous edition approved in 2010 as D5001 10.DOI:10.1520/D5001-10R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStand
13、ards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/www.dodssp.daps.mil.4Available from American Iron and Steel Institute(AISI),1140 Connecti
14、cutAve.,NW,Suite 705,Washington,DC 20036,http:/www.steel.org.5Available from International Organization for Standardization(ISO),1,ch.dela Voie-Creuse,Case postale 56,CH-1211,Geneva 20,Switzerland,http:/www.iso.ch.6Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA
15、 15096-0001,http:/www.sae.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 cylindrical steel ring with an applied load.The test ring isrotated at a fixed speed while being partially immersed in thefluid reservoir.This maintains the rin
16、g in a wet condition andcontinuously transports the test fluid to the ball/ring interface.The wear scar generated on the test ball is a measure of thelubricating property of the fluid.For wear scar diameter(WSD)calibration and standardization,see Section 10.5.Significance and Use5.1 Wear due to excessive friction resulting in shortened lifeof engine components such as fuel pumps and fuel controls hassometimes been ascribed to lack of lubricity in an aviation fuel.5.2 The relationship of test res
