ASTM_D_6201_-_19a.pdf

Designation:D620119aStandard Test Method forDynamometer Evaluation of Unleaded Spark-Ignition EngineFuel for Intake Valve Deposit Formation1This standard is issued under the fixed designation D6201;the number immediately 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.1.Scope*1.1 This test method covers an engine dynamometer testprocedure for evaluation of intake valve deposit formation ofunleaded spark-ignition engine fuels.2This test method uses aFord Ranger 2.3 L four-cylinder engine.This test methodincludes detailed information regarding the procedure,hardware,and operations.1.2 The ASTM Test Monitoring Center(TMC)3is respon-sible for engine test stand calibration as well as issuance ofinformation letters after test method modifications are ap-proved by Subcommittee D02.A0 and Committee D02.Usersof this test method shall request copies of recent informationletters from the TMC to ensure proper conduct of the testmethod.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Specific warning statements are given throughout this testmethod.1.5 This test method is arranged as follows:SubjectSectionScope1Referenced Documents2Terminology3Summary of Test Method4Significance and Use5Apparatus6SubjectSectionLaboratory Facilities6.1Engine and Cylinder Head Build-Up and Measurement Area6.1.1Engine Operating Area6.1.2Fuel Injector Testing Area6.1.3Intake Valve Rinsing and Parts Cleaning Area6.1.4Parts Rating and Intake Valve Weighing Area6.1.5Test Stand Laboratory Equipment6.2Test Stand Configuration6.2.1Dynamometer Speed and Load Control System6.2.2Intake Air Supply System6.2.3Exhaust System6.2.4Fuel Supply System6.2.5Engine Control Calibration6.2.6Ignition System6.2.7Engine Coolant System6.2.8External Oil System6.2.9Temperature Measurement Equipment and Locations6.2.10Pressure Measurement Equipment and Locations6.2.11Flow Measurement Equipment and Locations6.2.12Speed and Load Measurement Equipment and Locations6.2.13Exhaust Emissions Measurement Equipment and Location6.2.14DPFE(EGR)Voltage Measurement Equipment and Location6.2.15Ignition Timing Measurement Equipment and Location6.2.16Test Engine Hardware6.3Test Engine Parts6.3.1New Parts Required6.3.2Reusable Engine Parts6.3.3Special Measurement and Assembly Equipment6.4Reagents and Materials7Hazards8Reference Fuel9Preparation of Apparatus10Test Stand Preparation10.1Engine Block Preparation10.2Preparation of Miscellaneous Engine Components10.3Cylinder Head Preparation10.4Cylinder Head Assembly10.5Cylinder Head Installation10.6Final Engine Assembly10.7Calibration11Test Stand Calibration11.1Instrumentation Calibration11.2Procedure12Pretest Procedure12.1Engine Operating Procedure12.2Periodic Measurements and Functions12.3End of Test Procedures12.4Determination of Test Results13Post-Test Intake Valve Weighing Procedure13.1Photographs of PartsGeneral13.2Induction System Rating13.3Determination of Test Validity-Engine Conformance13.4Report14Precision and Bias15Keywords161This test method is under jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.A0.01 on Gasoline and Gasoline-Oxygenate Blends.Current edition approved Dec.1,2019.Published December 2019.Originallyapproved in 1997.Last previous edition approved in 2019 as D6201 19.DOI:10.1520/D6201-19A.2Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D02-1453.ContactASTM CustomerService at serviceastm.org.3ASTM Test Monitoring Center(TMC),6555 Penn Avenue,Pittsburgh,PA15206-4489.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.SubjectSectionAnnexesDetailed Specifications and Photographs of ApparatusAnnex A1Engine Part Number ListingAnnex A2Statistical Equations for Mean and Standard DeviationAnnex A31.6 This international standard was developed in accor-dance with internationally recognized principles on stan