Standard Historical Last Updated: Aug 16, 2017 Track Document
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)

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) D6750-02 ASTM|D6750-02|en-US 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) Standard new BOS Vol. 05.03 Committee D02
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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:

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Section
Introduction
Scope1
Referenced documents2
Terminology3
Summary of Test Methods4
Significance and Use5
Apparatus6
General Laboratory Requirements6.1
Test Engine6.2
Test Engine Accessories and Parts6.3
Reagents and Materials7
Test Oil Sample Requirements8
Preparation of Apparatus 9
Engine Inspection9.1
Engine Pre-Test Lubrication System Flush9.2
Engine Pre-Test Measurements and Inspections9.3
Engine Assembly9.4
Pressure Testing of Fuel System Assembly9.5
Calibration of Engine Test Stand10
General Requirements and Frequency of Calibration10.1
Runs10.2
Specified Test Parameters10.3
Calibration Test Acceptance Criteria10.4
Action on Rejection of Calibration Test10.5
Test Numbering10.6
Reference Oils10.7
Severity Adjustments10.8
Engine Operating Procedure11
Engine Run-In11.1
Cool-Down Procedure11.2
Warm-Up Procedure11.3
Operating Conditions and Oil Additions11.4
Measurement of Oil Consumption11.5
Sampling Used Oil11.6
Shutdowns, Lost Time and Off Tolerance Conditions11.7
Recording of Exhaust Temperature11.8
Air-Fuel Ratio Measurement11.9
Recording of Engine Conditions11.10
Humidity Requirements/Calibration/Measurement11.11
Inspections, Photographs and Measurements12
Reference to Reporting Form12.1
Pre-Test Measurements of Engine Parts12.2
Post-Test Information12.3
Oil Inspections12.4
Oil Consumption12.5
Unscheduled Shutdowns and Off-Limit Operation12.6
Report13
General Directions13.1
Specific Directions13.2
Electronic Transmission of Test Results (Optional)13.3
Reporting Calibration Test Results13.4
Precision and Bias14
Keywords15
ANNEXES
Specifications for Test Engine and Engine BuildAnnex A1
Intake Air System DetailsAnnex A2
Exhaust System DetailsAnnex A3
Cooling System DetailsAnnex A4
Oil System Modifications and Instrument LocationsAnnex A5
Other Pressure and Temperature Measurement LocationsAnnex A6
Oil Consumption Linear Regression MethodAnnex A7
Test Fuel SpecificationsAnnex A8
Lubrication System, Flush Apparatus and ProcedureAnnex A9
Engine Operating ConditionsAnnex A10
Procedure for Rating Piston and LinerAnnex A11
Calculation of Percent Offset and Percent DeviationAnnex A12
1K/1N Test Reporting - Report FormsAnnex A13
Data DictionaryAnnex A14
Parts List by Part Number (P/N) and WarrantyAnnex A15
Role of Test Monitoring CenterAnnex A16
Safety PrecautionsAnnex A17
APPENDIXES
Humidity DataAppendix X1
Statistical Equations for Mean and Standard DeviationAppendix X2
Examples of Forms for ReportingAppendix X3
Optional Recording of Oil Pass LimitsAppendix X4

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Details
Book of Standards Volume: 05.03
Developed by Subcommittee: D02.B0.02
Pages: 117
DOI: 10.1520/D6750-02
ICS Code: 75.100