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ASTM D6201-04(2014)
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ASTM D6201-04(2014) Standard Test Method for Dynamometer Evaluation of Unleaded Spark-Ignition Engine Fuel for Intake Valve Deposit Formation
standard by ASTM International, 10/01/2014
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Full Description
1.1This test method covers an engine dynamometer test procedure for evaluation of intake valve deposit formation of unleaded spark-ignition engine fuels.2 This test method uses a Ford Ranger 2.3 L four-cylinder engine. This test method includes detailed information regarding the procedure, hardware, and operations.
1.2The ASTM Test Monitoring Center (TMC)3 is responsible for engine test stand calibration as well as issuance of information letters after test method modifications are approved by Subcommittee D02.A0 and Committee D02. Users of this test method shall request copies of recent information letters from the TMC to ensure proper conduct of the test method.
1.3The values stated in SI units are to be regarded as standard. The values in parentheses are provided for information only.
1.4This 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 applicability of regulatory limitations prior to use. Specific warning statements are given throughout this test method.
1.5This test method is arranged as follows:
| Subject | Section |
| Scope | 1 |
| Referenced Documents | 2 |
| Terminology | 3 |
| Summary of Test Method | 4 |
| Significance and Use | 5 |
| Apparatus | 6 |
| Laboratory Facilities | 6.1 |
| Engine and Cylinder Head Build-Up and Measurement Area | 6.1.1 |
| Engine Operating Area | 6.1.2 |
| Fuel Injector Testing Area | 6.1.3 |
| Intake Valve Rinsing and Parts Cleaning Area | 6.1.4 |
| Parts Rating and Intake Valve Weighing Area | 6.1.5 |
| Test Stand Laboratory Equipment | 6.2 |
| Test Stand Configuration | 6.2.1 |
| Dynamometer Speed and Load Control System | 6.2.2 |
| Intake Air Supply System | 6.2.3 |
| Exhaust System | 6.2.4 |
| Fuel Supply System | 6.2.5 |
| Engine Control Calibration | 6.2.6 |
| Ignition System | 6.2.7 |
| Engine Coolant System | 6.2.8 |
| External Oil System | 6.2.9 |
| Temperature Measurement Equipment and Locations | 6.2.10 |
| Pressure Measurement Equipment and Locations | 6.2.11 |
| Flow Measurement Equipment and Locations | 6.2.12 |
| Speed and Load Measurement Equipment and Locations | 6.2.13 |
| Exhaust Emissions Measurement Equipment and Location | 6.2.14 |
| DPFE (EGR) Voltage Measurement Equipment and Location | 6.2.15 |
| Ignition Timing Measurement Equipment and Location | 6.2.16 |
| Test Engine Hardware | 6.3 |
| Test Engine Parts | 6.3.1 |
| New Parts Required | 6.3.2 |
| Reusable Engine Parts | 6.3.3 |
| Special Measurement and Assembly Equipment | 6.4 |
| Reagents and Materials | 7 |
| Hazards | 8 |
| Reference Fuel | 9 |
| Preparation of Apparatus | 10 |
| Test Stand Preparation | 10.1 |
| Engine Block Preparation | 10.2 |
| Preparation of Miscellaneous Engine Components | 10.3 |
| Cylinder Head Preparation | 10.4 |
| Cylinder Head Assembly | 10.5 |
| Cylinder Head Installation | 10.6 |
| Final Engine Assembly | 10.7 |
| Calibration | 11 |
| Test Stand Calibration | 11.1 |
| Instrumentation Calibration | 11.2 |
| Procedure | 12 |
| Pretest Procedure | 12.1 |
| Engine Operating Procedure | 12.2 |
| Periodic Measurements and Functions | 12.3 |
| End of Test Procedures | 12.4 |
| Determination of Test Results | 13 |
| Post-Test Intake Valve Weighing Procedure | 13.1 |
| Photographs of Parts-General | 13.2 |
| Induction System Rating | 13.3 |
| Determination of Test Validity-Engine Conformance | 13.4 |
| Report | 14 |
| Precision and Bias | 15 |
| Keywords | 16 |
| Annexes | |
| Detailed Specifications and Photographs of Apparatus | Annex A1 |
| Engine Part Number Listing | Annex A2 |
| Statistical Equations for Mean and Standard Deviation | Annex A3 |