ASTM D6079-11(2016)
(Test Method)Standard Test Method for Evaluating Lubricity of Diesel Fuels by the High-Frequency Reciprocating Rig (HFRR)
Standard Test Method for Evaluating Lubricity of Diesel Fuels by the High-Frequency Reciprocating Rig (HFRR)
SIGNIFICANCE AND USE
5.1 Diesel fuel injection equipment has some reliance on lubricating properties of the diesel fuel. Shortened life of engine components, such as diesel fuel injection pumps and injectors, has sometimes been ascribed to lack of lubricity in a diesel fuel.
5.2 The trend of HFRR test results to diesel injection system pump component distress due to wear has been demonstrated in pump rig tests for some fuel/hardware combinations where boundary lubrication is believed to be a factor in the operation of the component.5
5.3 The wear scar generated in the HFRR test is sensitive to contamination of the fluids and test materials, the temperature of the test fuel, and the ambient relative humidity. Lubricity evaluations are also sensitive to trace contaminants acquired during test fuel sampling and storage.
5.4 The HFRR and Scuffing Load Ball on Cylinder Lubricity Evaluator (SLBOCLE, Test Method D6078) are two methods for evaluating diesel fuel lubricity. No absolute correlation has been developed between the two test methods.
5.5 The HFRR may be used to evaluate the relative effectiveness of diesel fuels for preventing wear under the prescribed test conditions. Correlation of HFRR test results with field performance of diesel fuel injection systems has not yet been determined.
5.6 This test method is designed to evaluate boundary lubrication properties. While viscosity effects on lubricity in this test method are not totally eliminated, they are minimized.
SCOPE
1.1 This test method covers the evaluation of the lubricity of diesel fuels using a high-frequency reciprocating rig (HFRR).
1.2 This test method is applicable to middle distillate fuels, such as Grades No. 1-D S15, S500, and S5000, and Grades No. 2-D S15, S500, and S5000 diesel fuels, in accordance with Specification D975; and other similar petroleum-based fuels which can be used in diesel engines. This test method is applicable to biodiesel blends. B5 was included in the round robin program that determined the precision statement.
Note 1: It is not known that this test method will predict the performance of all additive/fuel combinations. Additional work is underway to establish this correlation and future revisions of this test method may be necessary once this work is complete.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicable regulatory limitations prior to use. Specific warning statements are given in Section 7.
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Designation: D6079 − 11 (Reapproved 2016)
Standard Test Method for
Evaluating Lubricity of Diesel Fuels by the High-Frequency
1
Reciprocating Rig (HFRR)
This standard is issued under the fixed designation D6079; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D4177Practice for Automatic Sampling of Petroleum and
Petroleum Products
1.1 Thistestmethodcoverstheevaluationofthelubricityof
D4306Practice for Aviation Fuel Sample Containers for
diesel fuels using a high-frequency reciprocating rig (HFRR).
Tests Affected by Trace Contamination
1.2 This test method is applicable to middle distillate fuels,
D6078TestMethodforEvaluatingLubricityofDieselFuels
suchasGradesNo.1-DS15,S500,andS5000,andGradesNo.
by the Scuffing Load Ball-on-Cylinder Lubricity Evalua-
2-D S15, S500, and S5000 diesel fuels, in accordance with
tor (SLBOCLE)
Specification D975; and other similar petroleum-based fuels
E18Test Methods for Rockwell Hardness of Metallic Ma-
which can be used in diesel engines. This test method is
terials
applicable to biodiesel blends. B5 was included in the round
E92Test Methods for Vickers Hardness and Knoop Hard-
robin program that determined the precision statement.
ness of Metallic Materials
3
2.2 SAE Standard:
NOTE 1—It is not known that this test method will predict the
performance of all additive/fuel combinations.Additional work is under-
SAE-AMS 6440Steel, Bars, Forgings, and Tubing, 1.45 Cr
way to establish this correlation and future revisions of this test method
(0.93-1.05C) (SAE 52100), for Bearing Applications
may be necessary once this work is complete.
4
2.3 ISO Standard:
1.3 The values stated in SI units are to be regarded as
ISO 3290Roller Bearings, Balls – Dimensions and toler-
standard. No other units of measurement are included in this
ances
standard.
3. Terminology
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this standard to establish appro-
3.1.1 boundary lubrication, n—a condition in which the
priate safety and health practices and determine the applicable
friction and wear between two surfaces in relative motion are
regulatory limitations prior to use.Specificwarningstatements
determined by the properties of the surfaces and the properties
are given in Section 7.
of the contacting fluid, other than bulk viscosity.
3.1.1.1 Discussion—Metal to metal contact occurs and the
2. Referenced Documents
chemistry of the system is involved. Physically adsorbed or
2
chemically reacted soft films (usually very thin) support
2.1 ASTM Standards:
contact loads. As a result, some wear is inevitable.
D975Specification for Diesel Fuel Oils
D4057Practice for Manual Sampling of Petroleum and
3.1.2 lubricity, n—a qualitative term describing the ability
Petroleum Products
of a fluid to affect friction between, and wear to, surfaces in
relative motion under load.
3.1.2.1 Discussion—In this test method, the lubricity of a
1
This test method is under the jurisdiction of ASTM Committee D02 on
fluid is evaluated by the wear scar, in microns, produced on an
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
oscillatingballfromcontactwithastationarydiskimmersedin
Subcommittee D02.E0 on Burner, Diesel, Non-Aviation Gas Turbine, and Marine
the fluid operating under defined and controlled conditions.
Fuels.
Current edition approved April 1, 2016. Published May 2016. Originally
3.2 Abbreviations:
approved in 1999. Last previous edition approved in 2011 as D6079–11. DOI:
3.2.1 HFRR—high frequency reciprocating rig
10.1520/D6079-11R16.
This test method was developed by ISO/TC22/SC7/WG6 and is a part of ISO
12156.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or AvailablefromSAEInternational(SAE),400CommonwealthDr.,Warrendale,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM PA 15096-0001, http://www.sae.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6079 − 11 (2016)
3.2.2 WSD—wear scar diameter
4. Summary of Test Method
4.1 A 2mL test specimen of fuel is placed in the test
reservoir of an HFRR.
4.2 A vibrator arm holding a nonrotating steel ball and
loadedwitha20
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6079 − 11 D6079 − 11 (Reapproved 2016)
Standard Test Method for
Evaluating Lubricity of Diesel Fuels by the High-Frequency
1
Reciprocating Rig (HFRR)
This standard is issued under the fixed designation D6079; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*Scope
1.1 This test method covers the evaluation of the lubricity of diesel fuels using a high-frequency reciprocating rig (HFRR).
1.2 This test method is applicable to middle distillate fuels, such as Grades No. 1-D S15, S500, and S5000, and Grades No. 2-D
S15, S500, and S5000 diesel fuels, in accordance with Specification D975; and other similar petroleum-based fuels which can be
used in diesel engines. This test method is applicable to biodiesel blends. B5 was included in the round robin program that
determined the precision statement.
NOTE 1—It is not known that this test method will predict the performance of all additive/fuel combinations. Additional work is underway to establish
this correlation and future revisions of this test method may be necessary once this work is complete.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicable regulatory limitations
prior to use. Specific warning statements are given in Section 7.
2. Referenced Documents
2
2.1 ASTM Standards:
D975 Specification for Diesel Fuel Oils
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D4306 Practice for Aviation Fuel Sample Containers for Tests Affected by Trace Contamination
D6078 Test Method for Evaluating Lubricity of Diesel Fuels by the Scuffing Load Ball-on-Cylinder Lubricity Evaluator
(SLBOCLE)
E18 Test Methods for Rockwell Hardness of Metallic Materials
E92 Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials
3
2.2 SAE Standard:
SAE-AMS 6440 Steel, Bars, Forgings, and Tubing, 1.45 Cr (0.93-1.05C) (SAE 52100), for Bearing Applications
4
2.3 ISO Standard:
ISO 3290 Roller Bearings, Balls – Dimensions and tolerances
3. Terminology
3.1 Definitions:
3.1.1 boundary lubrication, n—a condition in which the friction and wear between two surfaces in relative motion are
determined by the properties of the surfaces and the properties of the contacting fluid, other than bulk viscosity.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.E0 on Burner, Diesel, Non-Aviation Gas Turbine, and Marine Fuels.
Current edition approved March 1, 2011April 1, 2016. Published April 2011May 2016. Originally approved in 1999. Last previous edition approved in 20042011 as
ε1
D6079D6079 – 11.–04 . DOI: 10.1520/D6079-11.10.1520/D6079-11R16.
This test method was developed by ISO/TC22/SC7/WG6 and is a part of ISO 12156.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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
1
---------------------- Page: 1 ----------------------
D6079 − 11 (2016)
3.1.1.1 Discussion—
Metal to metal contact occurs and the chemistry of the system is involved. Physically adsorbed or chemically reacted soft films
(usually very thin) support contact loads. As a result, some wear is inevitable.
3.1.2 lubricity, n—a qualitative term describing the ability of a fluid to affect friction between, and wear to, surfaces in relative
motion under load.
3.1.2.1 Discussion—
In this test metho
...
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