ASTM D7468-2011 2916 Standard Test Method for Cummins ISM Test《康明斯ISM测试的标准试验方法》.pdf
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1、Designation: D7468 11Standard Test Method forCummins ISM Test1This standard is issued under the fixed designation D7468; 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 t
2、he year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 The test method covers a heavy-duty diesel engine testprocedure conducted under high soot conditions to evaluate oilperformance with regard to valve train wear, top rin
3、g wear,sludge deposits, and oil filter plugging in an EGR environment.This test method is commonly referred to as the Cummins ISMTest.21.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.2.1 ExceptionThe only exception is wher
4、e there is nodirect SI equivalent such as screw threads, national pipethreads/diameters, tubing sizes, or where there is a sole sourceof supply equipment specification.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of
5、 the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. See Annex A1 forgeneral safety precautions.1.4 Table of Contents:SectionScope 1Referenced Documents 2Terminology 3Summary of Test Method 4Signific
6、ance and Use 5Apparatus 6Test Engine Configuration 6.1Test Engine 6.1.1Oil Heat Exchanger, Adapter Blocks, Block Off Plate 6.1.2Oil Filter Head Modification 6.1.3Oil Pan Modification 6.1.4Engine Control Module (ECM) 6.1.5Engine Position Sensor 6.1.6Intake Manifold Temperature Sensor 6.1.7Barometric
7、Pressure Sensor 6.1.8SectionTurbocharger Controller 6.1.9Power Supply Voltage 6.1.10Air Compressor and Fuel Pump 6.1.11Engine Block Preparation 6.1.12Test Stand Configuration 6.2Engine Mounting 6.2.1Intake Air System 6.2.2Aftercooler 6.2.3Exhaust System 6.2.4Exhaust Gas Recirculation System 6.2.5Fue
8、l System 6.2.6Coolant System 6.2.7Pressurized Oil Fill System 6.2.8External Oil System 6.2.9Crankcase Aspiration 6.2.10Blowby Rate 6.2.11System Time Responses 6.3Oil Sample Containers 6.4Mass Balance 6.5Engine and Cleaning Fluids 7Test Oil 7.1Test Fuel 7.2Engine Coolant 7.3Pentane 7.4Solvent 7.5Prep
9、aration of Apparatus 8Cleaning of Parts 8.1General 8.1.1Engine Block 8.1.2Cylinder Head 8.1.3Rocker Cover and Oil Pan 8.1.4External Oil System 8.1.5Crosshead Cleaning and Measurement 8.1.6Rod Bearing Cleaning and Measurement 8.1.7Ring Cleaning and Measurement 8.1.8Injector Adjusting Screw Cleaning a
10、nd Measurement 8.1.9Engine Assembly 8.2General 8.2.1Parts Reuse and Replacement 8.2.2Build-Up Oil 8.2.3Coolant Thermostat 8.2.4Oil Thermostat 8.2.5Fuel Injectors 8.2.6New Parts 8.2.7Operational Measurements 8.3Units and Formats 8.3.1Instrumentation Calibration 8.3.2Temperatures 8.3.3Pressures 8.3.4F
11、low Rates 8.3.5Intake and Exhaust CO2Measurement 8.3.6Engine/Stand Calibration and Non-Reference Oil Tests 9General 9.1New Test Stand 9.2New Test Stand Calibration 9.2.1Stand Calibration Period 9.3Stand Modification and Calibration Status 9.4Test Numbering System 9.51This test method is under the ju
12、risdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.B0 on Automotive Lubricants.Current edition approved Oct. 1, 2011. Published November 2011. Originallyapproved in 2008. Last previous edition approved in 2010 as D746810b. DOI:10.
13、1520/D7468-11.2Until the next revision of this test method, the ASTM Test Monitoring Centerwill update changes in this test method by means of Information Letters. Informa-tion letters may be obtained from the ASTM Test Monitoring Center, 6555 PennAvenue, Pittsburgh, PA 15206-4489, Attention: Admini
14、strator. This edition incor-porates revisions in all information letters through No. 111.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.SectionGeneral 9.5.1Reference Oil Tests 9.5.2Non-Reference Oil Tests 9.5.3Reference Oil Test Acc
15、eptance 9.6Reference Oil Accountability 9.7Last Start Date 9.8Donated Reference Oil Test Programs 9.9Adjustments to Reference Oil Calibration Periods 9.10Procedural Deviations 9.10.1Parts and Fuel Shortages 9.10.2Reference Oil Test Data Flow 9.10.3Special Use of the Reference Oil Calibration System
16、9.10.4Test Procedure 10Engine Installation and Stand Connections 10.1Coolant System Fill 10.2Oil Fill for Break-in 10.3Engine Build Committed 10.3.3Fuel Samples 10.4Engine Warm-up 10.5Shutdown During Warm-up 10.5.1Engine Break-in 10.6Shutdown and Maintenance 10.7Normal Shutdown 10.7.1Emergency Shutd
17、own 10.7.2Maintenance 10.7.3Downtime 10.7.4200-h Test Procedure 10.8Oil Fill for Test 10.8.2Operating Conditions 10.8.4Injection Timing Change 10.8.5Mass % Soot Validity 10.8.6Test Timer 10.8.7Operational Data Acquisition 10.8.8Oil Sampling 10.8.9Oil Addition 10.8.10End of Test (EOT) 10.9Engine Disa
18、ssembly 10.9.3Calculations, Ratings and Test Validity 11Crosshead Mass Loss 11.1Crosshead Mass Loss Correction Factor 11.1.8Injector Adjusting Screw Mass Loss 11.2Injector Adjusting Screw Correction Factor 11.2.5Ring Mass Loss 11.3Sludge Ratings 11.4Oil Filter Plugging 11.5Oil Analyses 11.6Oil Consu
19、mption 11.7Fuel Analyses 11.8Additional Analysis 11.8.1Assessment of Operational Validity 11.9Assessment of Test Interpretability 11.10Test Report 12Report Forms 12.1Reference Oil Test 12.2Electronic transmission of Test Results 12.2.1Precision and Bias 13Precision 13.1Intermediate Precision Conditi
20、ons 13.1.1Reproducibility Conditions 13.1.2Bias 13.2Keywords 14AnnexesSafety Precautions Annex A1Intake Air Aftercooler Annex A2Engine Build Parts Kit Annex A3Sensor Locations, Special Hardware, and Engine BlockModificationsAnnex A4External Oil System Annex A5Fuel Specification Annex A6Cummins Servi
21、ce Publications Annex A7Specified Units and Formats Annex A8Report Forms and Data Dictionary Annex A9Sludge Rating Worksheets Annex A10Oil Analyses Annex A11Determination of Operational Validity Annex A12Exhaust CO2Sampling Probe Annex A13SectionISM Merit Rating Calculation Annex A14AppendixTypical
22、System Configurations Appendix X12. Referenced Documents2.1 ASTM Standards:3D86 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 ProductsD130 Test Method for Corrosi
23、veness to Copper from Pe-troleum Products by Copper Strip TestD235 Specification for Mineral Spirits (Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)D287 Test Method for API Gravity of Crude Petroleum andPetroleum Products (Hydrometer Method)D445 Test Method for Kinematic Viscosity of Transpare
24、ntand Opaque Liquids (and Calculation of Dynamic Viscos-ity)D482 Test Method for Ash from Petroleum ProductsD524 Test Method for Ramsbottom Carbon Residue ofPetroleum ProductsD613 Test Method for Cetane Number of Diesel Fuel OilD664 Test Method for Acid Number of Petroleum Productsby Potentiometric
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