1、Designation: D 6750 08An American National StandardStandard Test Methods forEvaluation of Engine Oils in a High-Speed, Single-CylinderDiesel Engine1K Procedure (0.4 % Fuel Sulfur) and 1NProcedure (0.04 % Fuel Sulfur)1This standard is issued under the fixed designation D 6750; the number immediately
2、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.INTRODUCTIONThe test met
3、hods described in this standard can be used by any properly equipped laboratorywithout outside assistance. However, the ASTM Test Monitoring Center (TMC)2provides referenceoils and an assessment of the test results obtained on those oils by the laboratory (seeAnnexA15). Bythis means, the laboratory
4、will know whether its use of the test methods gives results statisticallysimilar to those obtained by other laboratories. Furthermore, various agencies require that a laboratoryuses the TMC services in seeking qualification of oils against specifications. For example, the U.S.Army has such a require
5、ment in some of its engine oil specifications.Accordingly, these test methods are written for those laboratories that use the TMC services.Laboratories that choose not to use these services may ignore those portions of the test methods thatrefer to the TMC.These test methods may be modified by Infor
6、mation Letters issued periodically by the TMC afterthe publication of this edition of the standard to become part of it. These letters are obtainable fromthe TMC. In addition, the TMC may issue supplementary memoranda related to the test methods, alsoobtainable from the TMC.1. Scope1.1 These test me
7、thods cover the performance of engine oilsintended for use in certain diesel engines. They are performedin a standardized high-speed, single-cylinder diesel engine byeither the 1K (0.4 % fuel sulfur) or 1N (0.04 % fuel sulfur)procedure.3The only difference in the two test methods is thefuel used. Pi
8、ston and ring groove deposit-forming tendency andoil consumption are measured. Also, the piston, the rings, andthe liner are examined for distress and the rings for mobility.These test methods are required to evaluate oils intended tosatisfy API service categories CF-4 and CH-4 for 1K, andCG-4 for 1
9、N of Specification D 4485.1.2 These test methods, although based on the originalCaterpillar 1K/1N procedures,3also embody TMC informationletters issued before these test methods were first published.These test methods are subject to frequent change. Until thenext revision of these test methods, TMC
10、will update changesin these test methods by the issuance of information letterswhich shall be obtained from TMC (see Annex A15).1.3 The values stated in SI units are to be regarded asstandard. The values given in parentheses are provided forinformation only.1.4 This standard does not purport to addr
11、ess 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 health practices and determine the applica-bility of regulatory limitations prior to use. Specific precau-tionary statements appear throughout the
12、 text. Being enginetests, these test methods do have definite hazards that shall bemet by safe practices (see Annex A16 on Safety Precautions).1.5 The following is the Table of Contents:SectionIntroductionScope 1Referenced documents 2Terminology 31These test methods are under the jurisdiction of AST
13、M Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.B0.02 on Heavy Duty Engine Oils.Current edition approved Oct. 15, 2008. Published November 2008. Originallyapproved in 2002. Last previous edition approved in 2006 as D 675006.2ASTM Test Monitorin
14、g Center (TMC), 6555 Penn Ave., Pittsburgh, PA15206-4489. The TMC issues Information Letters that supplement this test method.This edition incorporates revisions contained in all information letters through No.071.3These 1K/1N test procedures were developed by Caterpillar Inc., P.O. Box 610,Mossvill
15、e, IL 61552-0610.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Summary of Test Methods 4Significance and Use 5Apparatus 6General Laboratory Requirements 6.1Test Engine 6.2Test Engine Accessories and Parts 6.3Reagents and Materials
16、7Test Oil Sample Requirements 8Preparation of Apparatus 9Engine Inspection 9.1Engine Pre-Test Lubrication System Flush 9.2Engine Pre-Test Measurements and Inspections 9.3Engine Assembly 9.4Pressure Testing of Fuel System Assembly 9.5Calibration of Engine Test Stand 10General Requirements and Frequen
17、cy of Calibration 10.1Runs 10.2Specified Test Parameters 10.3Calibration Test Acceptance Criteria 10.4Action on Rejection of Calibration Test 10.5Test Numbering 10.6Reference Oils 10.7Severity Adjustments 10.8Engine Operating Procedure 11Engine Run-In 11.1Cool-Down Procedure 11.2Warm-Up Procedure 11
18、.3Operating Conditions and Oil Additions 11.4Measurement of Oil Consumption 11.5Sampling Used Oil 11.6Shutdowns, Lost Time and Off Tolerance Conditions 11.7Recording of Exhaust Temperature 11.8Air-Fuel Ratio Measurement 11.9Recording of Engine Conditions 11.10Humidity Requirements/Calibration/Measur
19、ement 11.11Inspections, Photographs and Measurements 12Reference to Reporting Form 12.1Pre-Test Measurements of Engine Parts 12.2Post-Test Information 12.3Oil Inspections 12.4Report 13General Directions 13.1Electronic Transmission of Test Results (Optional) 13.2Reporting Calibration Test Results 13.
20、3Precision and Bias 14Keywords 15ANNEXESSpecifications for Test Engine and Engine Build Annex A1Intake Air System Details Annex A2Exhaust System Details Annex A3Cooling System Details Annex A4Oil System Modifications and Instrument Locations Annex A5Other Pressure and Temperature Measurement Locatio
21、ns Annex A6Oil Consumption Linear Regression Method Annex A7Test Fuel Specifications Annex A8Lubrication System, Flush Apparatus and Procedure Annex A9Engine Operating Conditions Annex A10Procedure for Rating Piston and Liner Annex A11Calculation of Percent Offset and Percent Deviation Annex A121K/1
22、N Test Reporting Annex A13Parts List by Part Number (P/N) and Warranty Annex A14Role of Test Monitoring Center Annex A15Safety Precautions Annex A16APPENDIXESHumidity Data Appendix X1Statistical Equations for Mean and Standard Deviation Appendix X2Examples of Forms for Reporting Appendix X3Optional
23、Recording of Oil Pass Limits Appendix X42. Referenced Documents2.1 ASTM Standards:4D86 Test Method for Distillation of Petroleum Products atAtmospheric PressureD93 Test Methods for Flash Point by Pensky-MartensClosed Cup TesterD97 Test Method for Pour Point of Petroleum ProductsD 130 Test Method for
24、 Corrosiveness to Copper fromPetroleum Products by Copper Strip TestD 235 Specification for Mineral Spirits (Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)D 287 Test Method forAPI Gravity of Crude Petroleum andPetroleum Products (Hydrometer Method)D 445 Test Method for Kinematic Viscosity of T
25、ransparentand Opaque Liquids (and Calculation of Dynamic Viscos-ity)D 482 Test Method for Ash from Petroleum ProductsD 524 Test Method for Ramsbottom Carbon Residue ofPetroleum ProductsD 613 Test Method for Cetane Number of Diesel Fuel OilD 664 Test Method forAcid Number of Petroleum Productsby Pote
26、ntiometric TitrationD 1298 Test Method for Density, Relative Density (SpecificGravity), or API Gravity of Crude Petroleum and LiquidPetroleum Products by Hydrometer MethodD 1319 Test Method for Hydrocarbon Types in LiquidPetroleum Products by Fluorescent Indicator AdsorptionD 1796 Test Method forWat
27、er and Sediment in Fuel Oils bythe Centrifuge Method (Laboratory Procedure)D 2425 Test Method for Hydrocarbon Types in MiddleDistillates by Mass SpectrometryD 2500 Test Method for Cloud Point of Petroleum ProductsD 2622 Test Method for Sulfur in Petroleum Products byWavelength Dispersive X-ray Fluor
28、escence SpectrometryD 2709 Test Method for Water and Sediment in MiddleDistillate Fuels by CentrifugeD3117 Test Method for WaxAppearance Point of DistillateFuelsD 3524 Test Method for Diesel Fuel Diluent in Used DieselEngine Oils by Gas ChromatographyD 4485 Specification for Performance of Engine Oi
29、lsD 4737 Test Method for Calculated Cetane Index by FourVariable EquationD 4739 Test Method for Base Number Determination byPotentiometric Hydrochloric Acid TitrationD 5185 Test Method for Determination of Additive Ele-ments, Wear Metals, and Contaminants in Used Lubricat-ing Oils and Determination
30、of Selected Elements in BaseOils by Inductively Coupled Plasma Atomic EmissionSpectrometry (ICP-AES)D 5186 Test Method for Determination of the AromaticContent and PolynuclearAromatic Content of Diesel Fuels4For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer
31、 Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.D6750082and Aviation Turbine Fuels By Supercritical Fluid Chro-matographyD 5302 Test Method for Evaluation of Automotive EngineOils for Inhibition of Depo
32、sit Formation and Wear in aSpark-Ignition Internal Combustion Engine Fueled withGasoline and Operated Under Low-Temperature, Light-Duty Conditions5D 5844 Test Method for Evaluation of Automotive EngineOils for Inhibition of Rusting (Sequence IID)5D 5862 Test Method for Evaluation of Engine Oils inTw
33、o-Stroke Cycle Turbo-Supercharged 6V92TA DieselEngineD 6202 Test Method for Automotive Engine Oils on theFuel Economy of Passenger Cars and Light-DutyTrucks inthe Sequence VIA Spark Ignition EngineD 6594 Test Method for Evaluation of Corrosiveness ofDiesel Engine Oil at 135CE29 Practice for Using Si
34、gnificant Digits in Test Data toDetermine Conformance with SpecificationsIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System2.2 SAE Standard:SAE J183 Engine Oil Performance and Engine ServiceClassification62.3 API Standard:API 1509 Engine Service Class
35、ification and Guide toCrankcase Oil Selection73. Terminology3.1 Definitions:3.1.1 blind reference oil, na reference oil, the indentity ofwhich is unknown by the test facility.3.1.1.1 DiscussionThis is a coded reference oil that issubmitted by a source independent from the test facility.D 58443.1.2 c
36、alibration test, nan engine test conducted on areference oil under carefully prescribed conditions, the resultsof which are used to determine the suitability of the enginestand/laboratory for such tests on non-reference oils.3.1.2.1 DiscussionA calibration test also includes testsconducted on parts
37、to ensure their suitability for use inreference and non-reference tests.3.1.3 calibrated test stand, na test stand on which thetesting of reference material(s), conducted as specified in thestandard, provided acceptable test results.3.1.3.1 DiscussionIn several automotive lubricant stan-dard test me
38、thods, the TMC provides testing guidance anddetermines acceptability. Sub. B Glossary23.1.4 candidate oil, nan oil that is intended to have theperformance characteristics necessary to satisfy a specificationand is to be tested against that specification. D 58443.1.5 debris, nin internal combustion e
39、ngines, solid con-taminant materials unintentionally introduced into the engineor resulting from wear. D 58623.1.6 double-blind test, na standard test performed on adouble-blind reference oil.3.1.7 double-blind reference oil, na reference oil, theidentity of which is unknown by either the submitting
40、 source orthe test facility and is not known to be a reference oil by the testfacility.3.1.7.1 DiscussionThis is a coded reference oil that issupplied by an independent source to a second party, whoapplies their own coded designation to the oil (and if necessary,repackages it to preserve its anonymi
41、ty), and submits it to athird party for testing. Sub. B Glossary3.1.8 engine oil, na liquid that reduces friction or wear, orboth, between the moving parts within an engine; removesheat, particularly from the underside of the pistons; and servesas a combustion gas sealant for the piston rings.3.1.8.
42、1 DiscussionIt may contain additives to enhanceproperties. Inhibition of engine rusting, deposit formation,valve train wear, oil oxidation, and foaming are examples.D 58623.1.9 erosion, nwearing away gradually, especially byrubbing or corroding.3.1.10 heavy duty engine, nin internal combustion en-gi
43、nes, one that is designed to allow operation continuously ator close to its peak output. D 44853.1.11 lubricating oil, na liquid lubricant, usually com-prising several ingredients, including a major portion of baseoil and minor portions of various additives. Sub. B Glossary3.1.12 non-reference oil,
44、nany oil other than a referenceoil; such as a research formulation, commercial oil, or candi-date oil. D 58443.1.13 purchaser, nof an ASTM test, a person or organi-zation that pays for the conduct of an ASTM test method on aspecified product.3.1.13.1 DiscussionThe preferred term is purchaser. Dep-re
45、cated terms that have been used are client, requestor,sponsor, and customer. D 62023.1.14 reference oil, nan oil of known performance char-acteristics, used as a basis for comparison.3.1.14.1 DiscussionReference oils are used to calibratetesting facilities, to compare the performance of other oils,
46、orto evaluate other materials (such as seals) that interact withoils. D 58443.1.15 soot, nin internal combustion engines, submicronsize particles, primarily carbon, created in the combustionchamber as products of incomplete combustion. D 58623.1.16 sponsor, nof an ASTM test method, an organizationth
47、at is responsible for ensuring supply of the apparatus used inthe test procedure portion of the test method.3.1.16.1 DiscussionIn some instances, such as a testmethod for chemical analysis, anASTM working group can bethe sponsor of a test method. In other instances, a companywith a self-interest may
48、 or may not be the developer of the testprocedure used within the test method, but is the sponsor,ofthe test method D 65945Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.6Available from the Society of Automotive Engineers Inc., 400 CommonwealthDr., Warr
49、endale, PA 15096. Order SAE Handbook, Vol 3; the standard is notavailable separately.7Available from theAmerican Petroleum Institute, 1220 L St., NW, Washington,DC 20005.D67500833.1.17 standard test, na test on a calibrated test standusing the prescribed equipment that is assembled according tothe requirements in the test method, and conducted accordingto the specified operating conditions.3.1.17.1 DiscussionThe specified operating conditions insome test methods include requirements for determining atests operational validity. These requirements are appl
