ASTM D6201 - 18a
Standard Test Method for Dynamometer Evaluation of Unleaded Spark-Ignition Engine Fuel for Intake Valve Deposit Formation
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Significance and Use
5.1 Test Method—The Coordinating Research Council sponsored testing to develop this test method to evaluate a fuel's tendency to form intake valve deposits.
5.1.1 State and Federal Legislative and Regulatory Action—Regulatory action by California Air Resources Board (CARB)9 and the United States Environmental Protection Agency (EPA)10 necessitate the acceptance of a standardized test method to evaluate the intake system deposit forming tendency of an automotive spark-ignition engine fuel.
5.1.2 Relevance of Results—The operating conditions and design of the engine used in this test method are not representative of all engines. These factors shall be considered when interpreting test results.
5.2 Test Validity:
5.2.1 Procedural Compliance—The test results are not considered valid unless the test is completed in compliance with all requirements of this test method. Deviations from the parameter limits presented in Sections 12 – 14 will result in an invalid test. Apply engineering judgment during conduct of the test method when assessing any anomalies to ensure validity of the test results.
5.2.2 Engine Compliance—A test is not considered valid unless the test engine meets the quality control inspection requirements as described in Sections 10 and 12.
1. Scope
1.1 This 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.
1.2 The 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.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given throughout this test method.
1.5 This 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 |
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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 and Liquid Fuels at Atmospheric Pressure
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)
D381 Test Method for Gum Content in Fuels by Jet Evaporation
D525 Test Method for Oxidation Stability of Gasoline (Induction Period Method)
D873 Test Method for Oxidation Stability of Aviation Fuels (Potential Residue Method)
D1266 Test Method for Sulfur in Petroleum Products (Lamp Method)
D1298 Test Method for Density, Relative Density, 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
D1744 Test Method for Determination of Water in Liquid Petroleum Products by Karl Fischer Reagent
D2427 Test Method for Determination of C2 through C5 Hydrocarbons in Gasolines by Gas Chromatography
D2622 Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry
D3237 Test Method for Lead in Gasoline by Atomic Absorption Spectroscopy
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4294 Test Method for Sulfur in Petroleum and Petroleum Products by Energy Dispersive X-ray Fluorescence Spectrometry
D4814 Specification for Automotive Spark-Ignition Engine Fuel
D4953 Test Method for Vapor Pressure of Gasoline and Gasoline-Oxygenate Blends (Dry Method)
D5059 Test Methods for Lead in Gasoline by X-Ray Spectroscopy
D5190 Test Method for Vapor Pressure of Petroleum Products (Automatic Method)
D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method)
D5302 Test Method for Evaluation of Automotive Engine Oils for Inhibition of Deposit Formation and Wear in a Spark-Ignition Internal Combustion Engine Fueled with Gasoline and Operated Under Low-Temperature, Light-Duty Conditions
D5482 Test Method for Vapor Pressure of Petroleum Products (Mini Method--Atmospheric)
D5500 Test Method for Vehicle Evaluation of Unleaded Automotive Spark-Ignition Engine Fuel for Intake Valve Deposit Formation
E203 Test Method for Water Using Volumetric Karl Fischer Titration
E1064 Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration
ANSI Standard
MC96.1 Temperature Measurement-ThermocouplesSAE Standard
J254 Instrumentation and Techniques for Exhaust Gas Emissions MeasurementICS Code
ICS Number Code 75.160.20 (Liquid fuels)
UNSPSC Code
UNSPSC Code 15101506(Gasoline or Petrol)
Referencing This Standard
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DOI: 10.1520/D6201-18A
Citation Format
ASTM D6201-18a, Standard Test Method for Dynamometer Evaluation of Unleaded Spark-Ignition Engine Fuel for Intake Valve Deposit Formation, ASTM International, West Conshohocken, PA, 2018, www.astm.org
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