1、Designation: D 6079 04e1An American National StandardStandard Test Method forEvaluating Lubricity of Diesel Fuels by the High-FrequencyReciprocating Rig (HFRR)1This standard is issued under the fixed designation D 6079; the number immediately following the designation indicates the year oforiginal a
2、doption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTEEditorial changes were made throughout in April 2005.1. Scope*1.1 This tes
3、t method covers the evaluation of the lubricity ofdiesel fuels using a high-frequency reciprocating rig (HFRR).1.2 This test method is applicable to middle distillate fuels,such as Grades Low Sulfur No. 1 D, Low Sulfur No. 2 D, No.1 D, and No. 2 D diesel fuels, in accordance with SpecificationD 975;
4、 and other similar petroleum-based fuels which can beused in diesel enginesNOTE 1It is not known that this test method will predict theperformance of all additive/fuel combinations. Additional work is under-way to further establish this correlation and future revisions of this testmethod may be nece
5、ssary once this work is complete.1.3 The values stated in SI units are to be regarded as thestandard.1.4 This 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 and hea
6、lth practices and determine the applicableregulatory limitations prior to use. Specific warning statementsare given in Section 7.2. Referenced Documents2.1 ASTM Standards:2D 975 Specification for Diesel Fuel OilsD 4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD 4177 Practice fo
7、r Automatic Sampling of Petroleum andPetroleum ProductsD 4306 Practice for Aviation Fuel Sample Containers forTests Affected by Trace ContaminationD 6078 Test Method for Evaluating Lubricity of DieselFuels by the Scuffing Load Ball-On-Cylinder LubricityEvaluator (SLBOCLE)E18 Test Methods for Rockwel
8、l Hardness and RockwellSuperficial Hardness of Metallic MaterialsE92 Test Method for Vickers Hardness of Metallic Mate-rials2.2 American Iron and Steel Institute Standard:3AISI E-52100 Chromium Alloy Steel2.3 American National Standards Institute Standard:4ANSI B3.12 Metal Balls3. Terminology3.1 Def
9、initions of Terms Specific to This Standard:3.1.1 boundary lubrication, na condition in which thefriction and wear between two surfaces in relative motion aredetermined by the properties of the surfaces and the propertiesof the contacting fluid, other than bulk viscosity.3.1.1.1 DiscussionMetal to m
10、etal contact occurs and thechemistry of the system is involved. Physically adsorbed orchemically reacted soft films (usually very thin) supportcontact loads. As a result, some wear is inevitable.3.1.2 lubricity, na qualitative term describing the abilityof a fluid to affect friction between, and wea
11、r to, surfaces inrelative motion under load.3.1.2.1 DiscussionIn this test method, the lubricity of afluid is evaluated by the wear scar, in microns, produced on anoscillating ball from contact with a stationary disc immersed inthe fluid operating under defined and controlled conditions.4. Summary o
12、f Test Method4.1 A 2-mL test specimen of fuel is placed in the testreservoir of an HFRR and adjusted to either of the standardtemperatures (25 or 60C). The preferred test temperature is60C, except where there may be concerns about loss of fuelbecause of its volatility or degradation of the fuel beca
13、use ofthe temperature.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.E0 on Burner, Diesel, Non-Aviation Gas Turbine, and Marine Fuels.Current edition approved Nov. 1, 2004. Published November 2
14、004. Originallyapproved in 1999. Last previous edition approved in 2002 as D 607902.This test method was developed by ISO/TC22/SC7/WG6 and is a part of ISO12156.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book o
15、f ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Iron and Steel Institute (AISI), 1140 ConnecticutAve., Suite 705, Washington, DC 20036.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor,
16、New York, NY 10036.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2 When the fuel temperature has stabilized, a vibrator armholding a nonrotating steel ball and loa
17、ded with a 200-g massis lowered until it contacts a test disk completely submerged inthe fuel. The ball is caused to rub against the disk with a 1-mmstroke at a frequency of 50 Hz for 75 min.4.3 The ball is removed from the vibrator arm and cleaned.The dimensions of the major and minor axes of the w
18、ear scarare measured under 1003 magnification and recorded.5. Significance and Use5.1 Diesel fuel injection equipment has some reliance onlubricating properties of the diesel fuel. Shortened life ofengine components, such as diesel fuel injection pumps andinjectors, has sometimes been ascribed to la
19、ck of lubricity in adiesel fuel.5.2 The trend of HFRR test results to diesel injection systempump component distress due to wear has been demonstratedin pump rig tests for some fuel/hardware combinations whereboundary lubrication is believed to be a factor in the operationof the component.55.3 The w
20、ear scar generated in the HFRR test is sensitive tocontamination of the fluids and test materials and the tempera-ture of the test. Lubricity evaluations are also sensitive to tracecontaminants acquired during test fuel sampling and storage.5.4 The HFRR and Scuffing Load Ball on Cylinder Lubric-ity
21、Evaluator (SLBOCLE, Test Method D 6078) are twomethods for evaluating diesel fuel lubricity. No absolutecorrelation has been developed between the two test methods.5.5 The HFRR may be used to evaluate the relative effec-tiveness of diesel fuels for preventing wear under the pre-scribed test conditio
22、ns. Correlation of HFRR test results withfield performance of diesel fuel injection systems has not yetbeen determined.5.6 This test method is designed to evaluate boundarylubrication properties. While viscosity effects on lubricity inthis test method are not totally eliminated, they are minimized.6
23、. Apparatus6.1 High-Frequency Reciprocating Rig (HFRR)6,7, (see Fig.1) capable of rubbing a steel ball loaded with a 200-g massagainst a stationary steel disk completely submerged in a testfuel. The apparatus uses a 1-mm stroke length at a frequency of50 Hz for 75 min. Complete operating conditions
24、are listed inTable 1.6.2 Test Reservoir, capable of holding a test disk in a rigidmanner beneath the test fuel. The temperature of this reservoir,and consequently the test fuel contained in it, is maintained bymeans of a closely attached electrically controlled heater pad.6.3 Control Unit, for contr
25、olling stroke length, frequency,test reservoir temperature, friction force, electrical contactpotential, and test duration, with an electronic data acquisitionand control system.66.4 Microscope, capable of 1003 magnification in gradua-tions of 0.1 mm and incremented in divisions of 0.01 mm.6.4.1 Gla
26、ss Slide Micrometer, with a scale ruled in 0.01 mmdivisions.7,86.5 Cleaning Bath, ultrasonic seamless stainless steel tankwith adequate capacity and a cleaning power of 40 W orgreater.6.6 Desiccator, containing a drying agent, capable of stor-ing test disks, balls, and hardware.7. Reagents and Mater
27、ials7.1 Acetone, reagent grade (WarningExtremely flam-mable. Vapors may cause flash fire).7.2 Compressed Air, containing less than 0.1 ppmv hydro-carbons and 50 ppmv water. (WarningCompressed gasunder high pressure. Use with extreme caution in the presenceof combustible material.)7.3 Gloves, clean,
28、lint-free, cotton, disposable7.4 Reference Fluids:7.4.1 Fluid AHigh lubricity reference9(WarningFlammable). Store in clean, borosilicate glass with an alumi-num foil-lined insert cap or a fully epoxy-lined metal container.Store in dark area.5Nikanjam, M., Crosby, T., Henderson, P., Gray, C., Meyer,
29、K, and Davenport,N., “ISO Diesel Fuel Lubricity Round Robin Program,” SAE, Paper No. 952372,SAE Fuels and Lubricants Meeting, Oct. 16-19, 1995, Toronto, Canada.6The sole source of supply of the apparatus known to the committee at this timeis PCS Instruments, 5 Warple Mews, London W3 ORF, England.7If
30、 you are aware of alternative suppliers, please provide this information toASTM International Headquarters. Your comments will receive careful consider-ation at a meeting of the responsible technical committee,1which you may attend.8The sole source of supply of the apparatus known to the committee a
31、t this timeis Catalog No. 31-16-99 from Bausch diesel fuel; friction; lubricity;wearSUMMARY OF CHANGESSubcommittee D02.E0 has identified the location of selected changes to this standard since the last issue(D 607902) that may impact the use of this standard.(1) Revised 7.4.1 and 7.4.2 to allow the
32、use of epoxy-linedmetal containers for fluid storage.10Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR: D02-1411.D607904e14ASTM International takes no position respecting the validity of any patent rights asserted in connection w
33、ith any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible tec
34、hnical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful considera
35、tion at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr H
36、arbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D607904e15
