ASTM International - ASTM D7468-08

Standard Test Method for Cummins ISM Test

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Organization: ASTM International
Publication Date: 1 December 2008
Status: historical
Page Count: 34
ICS Code (Internal combustion engines): 27.020
ICS Code (Lubricants, industrial oils and related products): 75.100
significance And Use:

This test method was developed to assess the performance of an engine oil to control engine wear and deposits under heavy-duty operating conditions selected to accelerate soot generation, valve... View More

scope:

1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits, and oil filter plugging in an EGR environment. This test method is commonly referred to as the Cummins ISM Test.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.2.1 Exception-The only exception is where there is no direct SI equivalent such as screw threads, national pipe threads/diameters, and tubing sizes.

1.3 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 applicability of regulatory limitations prior to use. See Annex A1 for general safety precautions.

1.4 Table of Contents:

Section
Scope1
Referenced Documents2
Terminology3
Summary of Test Method4
Significance and Use5
Apparatus6
Test Engine Configuration6.1
Test Engine6.1.1
Oil Heat Exchanger, Adapter Blocks, Block Off Plate6.1.2
Oil Filter Head Modification6.1.3
Oil Pan Modification6.1.4
Engine Control Module (ECM)6.1.5
Engine Position Sensor6.1.6
Intake Manifold Temperature Sensor6.1.7
Barometric Pressure Sensor6.1.8
Turbocharger Controller6.1.9
Power Supply Voltage6.1.10
Air Compressor and Fuel Pump6.1.11
Engine Block Preparation6.1.12
Test Stand Configuration6.2
Engine Mounting6.2.1
Intake Air System6.2.2
Aftercooler6.2.3
Exhaust System6.2.4
Exhaust Gas Recirculation System6.2.5
Fuel System6.2.6
Coolant System6.2.7
Pressurized Oil Fill System6.2.8
External Oil System6.2.9
Crankcase Aspiration6.2.10
Blowby Rate6.2.11
System Time Responses6.3
Oil Sample Containers6.4
Mass Balance6.5
Engine and Cleaning Fluids7
Test Oil7.1
Test Fuel7.2
Engine Coolant7.3
Pentane7.4
Solvent7.5
Preparation of Apparatus8
Cleaning of Parts8.1
General8.1.1
Engine Block8.1.2
Cylinder Head8.1.3
Rocker Cover and Oil Pan8.1.4
External Oil System8.1.5
Crosshead Cleaning and Measurement8.1.6
Rod Bearing Cleaning and Measurement8.1.7
Ring Cleaning and Measurement8.1.8
Injector Adjusting Screw Cleaning and Measurement8.1.9
Engine Assembly8.2
General8.2.1
Parts Reuse and Replacement8.2.2
Build-Up Oil8.2.3
Coolant Thermostat8.2.4
Oil Thermostat8.2.5
Fuel Injectors8.2.6
New Parts8.2.7
Operational Measurements8.3
Units and Formats8.3.1
Instrumentation Calibration8.3.2
Temperatures8.3.3
Pressures8.3.4
Flow Rates8.3.5
Intake and Exhaust CO

2 Measurement

8.3.6
Engine/Stand Calibration and Non-Reference Oil Tests9
General9.1
New Test Stand9.2
New Test Stand Calibration9.2.1
Stand Calibration Period9.3
Stand Modification and Calibration Status9.4
Test Numbering System9.5
General9.5.1
Reference Oil Tests9.5.2
Non-Reference Oil Tests9.5.3
Reference Oil Test Acceptance9.6
Reference Oil Accountability9.7
Last Start Date9.8
Donated Reference Oil Test Programs9.9
Adjustments to Reference Oil Calibration Periods9.10
Procedural Deviations9.10.1
Parts and Fuel Shortages9.10.2
Reference Oil Test Data Flow9.10.3
Special Use of the Reference Oil Calibration System9.10.4
Test Procedure10
Engine Installation and Stand Connections10.1
Coolant System Fill10.2
Oil Fill for Break-in10.3
Engine Build Committed10.3.3
Fuel Samples10.4
Engine Warm-up10.5
Shutdown During Warm-up10.5.1
Engine Break-in10.6
Shutdown and Maintenance10.7
Normal Shutdown10.7.1
Emergency Shutdown10.7.2
Maintenance10.7.3
Downtime10.7.4
200-h Test Procedure10.8
Oil Fill for Test10.8.2
Operating Conditions10.8.4
Injection Timing Change10.8.5
Mass % Soot Validity10.8.6
Test Timer10.8.7
Operational Data Acquisition10.8.8
Oil Sampling10.8.9
Oil Addition10.8.10
End of Test (EOT)10.9
Engine Disassembly10.9.3
Calculations, Ratings and Test Validity11
Crosshead Mass Loss11.1
Crosshead Mass Loss Correction Factor11.1.8
Injector Adjusting Screw Mass Loss11.2
Injector Adjusting Screw Correction Factor11.2.5
Ring Mass Loss11.3
Sludge Ratings11.4
Oil Filter Plugging11.5
Oil Analyses11.6
Oil Consumption11.7
Fuel Analyses11.8
Additional Analysis11.8.1
Assessment of Operational Validity11.9
Assessment of Test Interpretability11.10
Test Report12
Report Forms12.1
Reference Oil Test12.2
Electronic transmission of Test Results12.2.1
Precision and Bias14
Precision14.1
Intermediate Precision Conditions14.1.1
Reproducibility Conditions14.1.2
Bias14.2
Keywords15
Annexes
Safety PrecautionsAnnex A1
Intake Air AftercoolerAnnex A2
Engine Build Parts KitAnnex A3
Sensor Locations, Special Hardware, and Engine Block ModificationsAnnex A4
External Oil SystemAnnex A5
Fuel SpecificationAnnex A6
Cummins Service PublicationsAnnex A7
Specified Units and FormatsAnnex A8
Report Forms and Data DictionaryAnnex A9
Sludge Rating WorksheetsAnnex A10
Oil AnalysesAnnex A11
Determination of Operational ValidityAnnex A12
Exhaust CO

2 Sampling Probe

Annex A13
ISM Merit Rating CalculationAnnex A14
Appendix
Typical System ConfigurationsAppendix X1

Document History

July 1, 2020
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
July 1, 2019
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
October 1, 2016
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
April 1, 2015
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
October 1, 2014
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
May 1, 2013
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
December 1, 2012
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
October 1, 2011
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
November 1, 2010
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
July 1, 2010
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
May 1, 2010
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
ASTM D7468-08
December 1, 2008
Standard Test Method for Cummins ISM Test
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits,...
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