ASTM D6750-2013 red 0625 Standard Test Methods for Evaluation of Engine Oils in a High-Speed Single-Cylinder Diesel Engine1K Procedure (0 4&8201 % Fuel Sulfur) and 1N Procedure (0 .pdf
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1、Designation: D6750 10bD6750 13Standard 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 D6750; the number immediately following the designat
2、ion 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 methods described in this
3、 standard can be used by any properly equipped laboratorywithout outside assistance. However, the ASTM Test Monitoring Center (TMC)2 provides referenceoils and an assessment of the test results obtained on those oils by the laboratory (see Annex A15).By this means, the laboratory will know whether i
4、ts 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 requirement in some of its
5、 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 Information Letters issu
6、ed 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. Scope Scope*1.1 These test methods cover
7、the performance of engine oils intended for use in certain diesel engines. They are performed ina standardized high-speed, single-cylinder diesel engine by either the 1K (0.4 % mass fuel sulfur) or 1N (0.04 % mass fuel sulfur)procedure.3 The only difference in the two test methods is the fuel used.
8、Piston and ring groove deposit-forming tendency and oilconsumption are measured.Also, the piston, the rings, and the liner are examined for distress and the rings for mobility. These testmethods are required to evaluate oils intended to satisfy API service categories CF-4 and CH-4 for 1K, and CG-4 f
9、or 1N ofSpecification D4485.1.2 These test methods, although based on the original Caterpillar 1K/1N procedures,3 also embody TMC information lettersissued before these test methods were first published. These test methods are subject to frequent change. Until the next revisionof these test methods,
10、 TMC will update changes in these test methods by the issuance of information letters which shall be obtainedfrom TMC (see Annex A15).1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3.1 ExceptionWhere there is no direct
11、SI equivalent such as screw threads, national pipe threads/diameters, tubing size, orsingle source equipment specified. Also Brake Specific Fuel Consumption is measured in kilograms per kilowatthour.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its
12、 use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use. Specific precautionary statements appear throughout the text. Being engine tests, these test methods do1 These test m
13、ethods are under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.B0.02on Heavy Duty Engine Oils.Current edition approved Oct. 1, 2010May 1, 2013. Published November 2010June 2013. Originally approved in 2002. Last previo
14、us edition approved in 2010 asD6750D6750 10b.10a. DOI: 10.1520/D6750-10B.10.1520/D6750-13.2 ASTM Test Monitoring Center (TMC), 6555 Penn Ave., Pittsburgh, PA 15206-4489. The TMC issues Information Letters that supplement this test method. This editionincorporates revisions contained in all informati
15、on letters through No. 101.121.3 These 1K/1N test procedures were developed by Caterpillar Inc., P.O. Box 610, Mossville, IL 61552-0610.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 vers
16、ion. Becauseit 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 versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes sect
17、ion appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1have definite hazards that shall be met by safe practices (see Annex A16 on Safety Precautions).D6750 1321.5 The following is the Table of Contents
18、:SectionIntroductionScope 1Referenced documents 2Terminology 3Summary of Test Methods 4Significance and Use 5Apparatus 6General Laboratory Requirements 6.1Test Engine 6.2Test Engine Accessories and Parts 6.3Reagents and Materials 7Test Oil Sample Requirements 8Preparation of Apparatus 9Engine Inspec
19、tion 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 Frequency of Calibration 10.1Runs 10.2Specified Test Parameters 10.3Calibrati
20、on 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 11.3Operating Conditions and Oil Additions 11.4Measurement of Oil Consum
21、ption 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/Measurement 11.11Inspections, Photographs and Measurements 12Reference to Re
22、porting 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 13.3Precision and Bias 14Keywords 15ANNEXESSpecifications for Test Engine
23、 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 Locations Annex A6Oil Consumption Linear Regression Method Annex A7Test Fuel
24、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/1N Test Reporting Annex A13Parts List by Part Number (P/N) and Warranty
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