ASTM D7468-08
Historical Standard: ASTM D7468-08 Standard Test Method for Cummins ISM Test
SUPERSEDED (see Active link, below)
ASTM D7468
1. 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 | |
|---|---|
| Scope | 1 |
| Referenced Documents | 2 |
| Terminology | 3 |
| Summary of Test Method | 4 |
| Significance and Use | 5 |
| Apparatus | 6 |
| Test Engine Configuration | 6.1 |
| Test Engine | 6.1.1 |
| Oil Heat Exchanger, Adapter Blocks, Block Off Plate | 6.1.2 |
| Oil Filter Head Modification | 6.1.3 |
| Oil Pan Modification | 6.1.4 |
| Engine Control Module (ECM) | 6.1.5 |
| Engine Position Sensor | 6.1.6 |
| Intake Manifold Temperature Sensor | 6.1.7 |
| Barometric Pressure Sensor | 6.1.8 |
| Turbocharger Controller | 6.1.9 |
| Power Supply Voltage | 6.1.10 |
| Air Compressor and Fuel Pump | 6.1.11 |
| Engine Block Preparation | 6.1.12 |
| Test Stand Configuration | 6.2 |
| Engine Mounting | 6.2.1 |
| Intake Air System | 6.2.2 |
| Aftercooler | 6.2.3 |
| Exhaust System | 6.2.4 |
| Exhaust Gas Recirculation System | 6.2.5 |
| Fuel System | 6.2.6 |
| Coolant System | 6.2.7 |
| Pressurized Oil Fill System | 6.2.8 |
| External Oil System | 6.2.9 |
| Crankcase Aspiration | 6.2.10 |
| Blowby Rate | 6.2.11 |
| System Time Responses | 6.3 |
| Oil Sample Containers | 6.4 |
| Mass Balance | 6.5 |
| Engine and Cleaning Fluids | 7 |
| Test Oil | 7.1 |
| Test Fuel | 7.2 |
| Engine Coolant | 7.3 |
| Pentane | 7.4 |
| Solvent | 7.5 |
| Preparation of Apparatus | 8 |
| Cleaning of Parts | 8.1 |
| General | 8.1.1 |
| Engine Block | 8.1.2 |
| Cylinder Head | 8.1.3 |
| Rocker Cover and Oil Pan | 8.1.4 |
| External Oil System | 8.1.5 |
| Crosshead Cleaning and Measurement | 8.1.6 |
| Rod Bearing Cleaning and Measurement | 8.1.7 |
| Ring Cleaning and Measurement | 8.1.8 |
| Injector Adjusting Screw Cleaning and Measurement | 8.1.9 |
| Engine Assembly | 8.2 |
| General | 8.2.1 |
| Parts Reuse and Replacement | 8.2.2 |
| Build-Up Oil | 8.2.3 |
| Coolant Thermostat | 8.2.4 |
| Oil Thermostat | 8.2.5 |
| Fuel Injectors | 8.2.6 |
| New Parts | 8.2.7 |
| Operational Measurements | 8.3 |
| Units and Formats | 8.3.1 |
| Instrumentation Calibration | 8.3.2 |
| Temperatures | 8.3.3 |
| Pressures | 8.3.4 |
| Flow Rates | 8.3.5 |
| Intake and Exhaust CO 2 Measurement | 8.3.6 |
| Engine/Stand Calibration and Non-Reference Oil Tests | 9 |
| General | 9.1 |
| New Test Stand | 9.2 |
| New Test Stand Calibration | 9.2.1 |
| Stand Calibration Period | 9.3 |
| Stand Modification and Calibration Status | 9.4 |
| Test Numbering System | 9.5 |
| General | 9.5.1 |
| Reference Oil Tests | 9.5.2 |
| Non-Reference Oil Tests | 9.5.3 |
| Reference Oil Test Acceptance | 9.6 |
| Reference Oil Accountability | 9.7 |
| Last Start Date | 9.8 |
| Donated Reference Oil Test Programs | 9.9 |
| Adjustments to Reference Oil Calibration Periods | 9.10 |
| Procedural Deviations | 9.10.1 |
| Parts and Fuel Shortages | 9.10.2 |
| Reference Oil Test Data Flow | 9.10.3 |
| Special Use of the Reference Oil Calibration System | 9.10.4 |
| Test Procedure | 10 |
| Engine Installation and Stand Connections | 10.1 |
| Coolant System Fill | 10.2 |
| Oil Fill for Break-in | 10.3 |
| Engine Build Committed | 10.3.3 |
| Fuel Samples | 10.4 |
| Engine Warm-up | 10.5 |
| Shutdown During Warm-up | 10.5.1 |
| Engine Break-in | 10.6 |
| Shutdown and Maintenance | 10.7 |
| Normal Shutdown | 10.7.1 |
| Emergency Shutdown | 10.7.2 |
| Maintenance | 10.7.3 |
| Downtime | 10.7.4 |
| 200-h Test Procedure | 10.8 |
| Oil Fill for Test | 10.8.2 |
| Operating Conditions | 10.8.4 |
| Injection Timing Change | 10.8.5 |
| Mass % Soot Validity | 10.8.6 |
| Test Timer | 10.8.7 |
| Operational Data Acquisition | 10.8.8 |
| Oil Sampling | 10.8.9 |
| Oil Addition | 10.8.10 |
| End of Test (EOT) | 10.9 |
| Engine Disassembly | 10.9.3 |
| Calculations, Ratings and Test Validity | 11 |
| Crosshead Mass Loss | 11.1 |
| Crosshead Mass Loss Correction Factor | 11.1.8 |
| Injector Adjusting Screw Mass Loss | 11.2 |
| Injector Adjusting Screw Correction Factor | 11.2.5 |
| Ring Mass Loss | 11.3 |
| Sludge Ratings | 11.4 |
| Oil Filter Plugging | 11.5 |
| Oil Analyses | 11.6 |
| Oil Consumption | 11.7 |
| Fuel Analyses | 11.8 |
| Additional Analysis | 11.8.1 |
| Assessment of Operational Validity | 11.9 |
| Assessment of Test Interpretability | 11.10 |
| Test Report | 12 |
| Report Forms | 12.1 |
| Reference Oil Test | 12.2 |
| Electronic transmission of Test Results | 12.2.1 |
| Precision and Bias | 14 |
| Precision | 14.1 |
| Intermediate Precision Conditions | 14.1.1 |
| Reproducibility Conditions | 14.1.2 |
| Bias | 14.2 |
| Keywords | 15 |
| Annexes | |
| Safety Precautions | Annex A1 |
| Intake Air Aftercooler | Annex A2 |
| Engine Build Parts Kit | Annex A3 |
| Sensor Locations, Special Hardware, and Engine Block Modifications | Annex A4 |
| External Oil System | Annex A5 |
| Fuel Specification | Annex A6 |
| Cummins Service Publications | Annex A7 |
| Specified Units and Formats | Annex A8 |
| Report Forms and Data Dictionary | Annex A9 |
| Sludge Rating Worksheets | Annex A10 |
| Oil Analyses | Annex A11 |
| Determination of Operational Validity | Annex A12 |
| Exhaust CO 2 Sampling Probe | Annex A13 |
| ISM Merit Rating Calculation | Annex A14 |
| Appendix | |
| Typical System Configurations | Appendix X1 |
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D86 Test Method for Distillation of Petroleum Products at Atmospheric Pressure
D93 Test Methods for Flash Point by Pensky-Martens Closed Cup Tester
D97 Test Method for Pour Point of Petroleum Products
D130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test
D235 Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)
D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D482 Test Method for Ash from Petroleum Products
D524 Test Method for Ramsbottom Carbon Residue of Petroleum Products
D613 Test Method for Cetane Number of Diesel Fuel Oil
D664 Test Method for Acid Number of Petroleum Products by Potentiometric Titration
D976 Test Method for Calculated Cetane Index of Distillate Fuels
D1319 Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption
D2274 Test Method for Oxidation Stability of Distillate Fuel Oil (Accelerated Method)
D2500 Test Method for Cloud Point of Petroleum Products
D2622 Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry
D2709 Test Method for Water and Sediment in Middle Distillate Fuels by Centrifuge
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D4175 Terminology Relating to Petroleum, Petroleum Products, and Lubricants
D4294 Test Method for Sulfur in Petroleum and Petroleum Products by Energy Dispersive X-ray Fluorescence Spectrometry
D4485 Specification for Performance of Active API Service Category Engine Oils
D4737 Test Method for Calculated Cetane Index by Four Variable Equation
D4739 Test Method for Base Number Determination by Potentiometric Hydrochloric Acid Titration
D5185 Test Method for Determination of Additive Elements, Wear Metals, and Contaminants in Used Lubricating Oils and Determination of Selected Elements in Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
D5453 Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence
D5967 Test Method for Evaluation of Diesel Engine Oils in T-8 Diesel Engine
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E178 Practice for Dealing With Outlying Observations
National Archives and Records Administration
Code of Federal Regu Title 40 Part 86.310-79 Available from Superintendent of Documents, Attn: New Orders, P.O. Box 371954, Pittsburgh, PA 15250-7954. Charge orders may be telephoned to the Government Printing Office order desk.Keywords
crosshead wear; Cummins ISM; de-rate protocols; diesel engine oil; exhaust gas recirculation; lubricants; oil filter delta pressure; sludge; top ring mass loss; valve train;
ICS Code
ICS Number Code 27.020 (Internal combustion engines); 75.100 (Lubricants, industrial oils and related products)
DOI: 10.1520/D7468-08
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