ASTM D6750-02
Historical Standard: ASTM D6750-02 Standard Test Methods for Evaluation of Engine Oils in A High-Speed, Single-Cylinder Diesel Engine -1K Procedure (0.4 % Fuel Sulfur) and 1N Procedure (0.04 % Fuel Sulfur)
SUPERSEDED (see Active link, below)
ASTM D6750
1. Scope
1.1 These test methods cover the performance of engine oils intended for use in certain diesel engines. They are performed in a standardized high-speed, single-cylinder diesel engine by either the 1K (0.4 % fuel sulfur) or 1N (0.04 % fuel sulfur) procedure. The only difference in the two test methods is the fuel used . Piston and ring groove deposit-forming tendency and oil consumption are measured. Also, the piston, the rings, and the liner are examined for distress and the rings for mobility. These test methods are required to evaluate oils intended to satisfy API service categories CF-4 and CH-4 for 1K, and CG-4 for 1N of Specification D 4485.
1.2 These test methods, although based on the original Caterpillar 1K/1N procedures, also embody TMC information letters issued before these test methods were first published. These test methods are subject to frequent change. Until the next revision of these test methods, TMC will update changes in these test methods by the issuance of information letters which shall be obtained from TMC (see Annex A16).
1.3 The values stated in inch-pound units or SI units are to be regarded separately as standard. When inch-pound units are standard, the SI units are shown in parenthesis. The values stated in each system are not necessarily exact equivalents. Because of this, combining values from the two systems may be incompatible. Therefore, use either system independently of the other.
1.4 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. Specific precautionary statements are given within the text. Being engine tests, these test methods do have definite hazards which shall be met by safe practices (see Annex A17 on Safety).
1.4 The following is the Table of Contents:
> >| Section | ||
| Introduction | ||
| Scope | 1 | |
| Referenced documents | 2 | |
| Terminology | 3 | |
| Summary of Test Methods | 4 | |
| Significance and Use | 5 | |
| Apparatus | 6 | |
| General Laboratory Requirements | 6.1 | |
| Test Engine | 6.2 | |
| Test Engine Accessories and Parts | 6.3 | |
| Reagents and Materials | 7 | |
| Test Oil Sample Requirements | 8 | |
| Preparation of Apparatus | 9 | |
| Engine Inspection | 9.1 | |
| Engine Pre-Test Lubrication System Flush | 9.2 | |
| Engine Pre-Test Measurements and Inspections | 9.3 | |
| Engine Assembly | 9.4 | |
| Pressure Testing of Fuel System Assembly | 9.5 | |
| Calibration of Engine Test Stand | 10 | |
| General Requirements and Frequency of Calibration | 10.1 | |
| Runs | 10.2 | |
| Specified Test Parameters | 10.3 | |
| Calibration Test Acceptance Criteria | 10.4 | |
| Action on Rejection of Calibration Test | 10.5 | |
| Test Numbering | 10.6 | |
| Reference Oils | 10.7 | |
| Severity Adjustments | 10.8 | |
| Engine Operating Procedure | 11 | |
| Engine Run-In | 11.1 | |
| Cool-Down Procedure | 11.2 | |
| Warm-Up Procedure | 11.3 | |
| Operating Conditions and Oil Additions | 11.4 | |
| Measurement of Oil Consumption | 11.5 | |
| Sampling Used Oil | 11.6 | |
| Shutdowns, Lost Time and Off Tolerance Conditions | 11.7 | |
| Recording of Exhaust Temperature | 11.8 | |
| Air-Fuel Ratio Measurement | 11.9 | |
| Recording of Engine Conditions | 11.10 | |
| Humidity Requirements/Calibration/Measurement | 11.11 | |
| Inspections, Photographs and Measurements | 12 | |
| Reference to Reporting Form | 12.1 | |
| Pre-Test Measurements of Engine Parts | 12.2 | |
| Post-Test Information | 12.3 | |
| Oil Inspections | 12.4 | |
| Oil Consumption | 12.5 | |
| Unscheduled Shutdowns and Off-Limit Operation | 12.6 | |
| Report | 13 | |
| General Directions | 13.1 | |
| Specific Directions | 13.2 | |
| Electronic Transmission of Test Results (Optional) | 13.3 | |
| Reporting Calibration Test Results | 13.4 | |
| Precision and Bias | 14 | |
| Keywords | 15 | |
| ANNEXES | ||
| Specifications for Test Engine and Engine Build | Annex A1 | |
| Intake Air System Details | Annex A2 | |
| Exhaust System Details | Annex A3 | |
| Cooling System Details | Annex A4 | |
| Oil System Modifications and Instrument Locations | Annex A5 | |
| Other Pressure and Temperature Measurement Locations | Annex A6 | |
| Oil Consumption Linear Regression Method | Annex A7 | |
| Test Fuel Specifications | Annex A8 | |
| Lubrication System, Flush Apparatus and Procedure | Annex A9 | |
| Engine Operating Conditions | Annex A10 | |
| Procedure for Rating Piston and Liner | Annex A11 | |
| Calculation of Percent Offset and Percent Deviation | Annex A12 | |
| 1K/1N Test Reporting - Report Forms | Annex A13 | |
| Data Dictionary | Annex A14 | |
| Parts List by Part Number (P/N) and Warranty | Annex A15 | |
| Role of Test Monitoring Center | Annex A16 | |
| Safety Precautions | Annex A17 | |
| APPENDIXES | ||
| Humidity Data | Appendix X1 | |
| Statistical Equations for Mean and Standard Deviation | Appendix X2 | |
| Examples of Forms for Reporting | Appendix X3 | |
| Optional Recording of Oil Pass Limits | Appendix X4 |
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
D1298 Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method
D1319 Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption
D1796 Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure)
D2425 Test Method for Hydrocarbon Types in Middle Distillates by Mass Spectrometry
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
D3117 Test Method for Wax Appearance Point of Distillate Fuels
D3524 Test Method for Diesel Fuel Diluent in Used Diesel Engine Oils by Gas Chromatography
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)
D5186 Test Method for Determination of the Aromatic Content and Polynuclear Aromatic Content of Diesel Fuels and Aviation Turbine Fuels By Supercritical Fluid Chromatography
D5844 Test Method for Evaluation of Automotive Engine Oils for Inhibition of Rusting (Sequence IID)
D5862 Test Method for Evaluation of Engine Oils in Two-Stroke Cycle Turbo-Supercharged 6V92TA Diesel Engine
D6202 Test Method for Automotive Engine Oils on the Fuel Economy of Passenger Cars and Light-Duty Trucks in the Sequence VIA Spark Ignition Engine
D6594 Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 135C
D7422 Test Method for Evaluation of Diesel Engine Oils in T-12 Exhaust Gas Recirculation Diesel Engine
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
SAE Standard
API Standard
Keywords
deposits; engine oil; engine wear; 1K test; 1N test; piston-ring-liner scuffing; piston ring sticking; top land heavy carbon;
ICS Code
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
DOI: 10.1520/D6750-02
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