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ASTM-D6421:2009 Edition

ASTM-D6421:2009 Edition

$40.63

D6421-99a(2009) Standard Test Method for Evaluating Automotive Spark-Ignition Engine Fuel for Electronic Port Fuel Injector Fouling by Bench Procedure

Published By Publication Date Number of Pages
ASTM 2009 9
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1.1 This test method covers a bench test procedure to evaluate the tendency of automotive spark-ignition engine fuel to foul electronic port fuel injectors (PFI). The test method utilizes a bench apparatus equipped with Bosch injectors specified for use in a 1985-1987 Chrysler 2.2-L turbocharged engine. This test method is based on a test procedure developed by the Coordinating Research Council (CRC) for prediction of the tendency of spark-ignition engine fuel to form deposits in the small metering clearances of injectors in a port fuel injection engine (see CRC Report No. 592).

1.2 The test method is applicable to spark-ignition engine fuels, which may contain antioxidants, corrosion inhibitors, metal deactivators, dyes, deposit control additives, demulsifiers, or oxygenates, or a combination thereof.

1.3 The values stated in SI units are to be regarded as the standard. Approximate inch-pound units are shown in parentheses for information purposes only.

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 throughout this test method.

Note 1If there is any doubt as to the latest edition of Test Method D6421, contact ASTM International Headquarters. Other properties of significance to spark-ignition engine fuel are described in Specification D4814 .

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Test Method
Significance and Use
Apparatus
3 Reagents and Materials
Preparation of Apparatus
4 Procedure
Calculation
Report
TABLE 1
5 Precision and Bias
Keywords
A1. ESSENTIAL COMPONENTS AND FUNCTION OF THE BENCH TEST APPARATUS
A1.1
A1.2 Reservoir Filling Operation
A1.3 Injector Flow Operation
A1.4 Test Cycle Operation
A1.5 Flush Mode Operation
FIG. 1
6 A2. TEST PROCEDURE FOR SCREENING OF INJECTORS
A2.1 Scope
A2.2 Initial Screening Test Procedure
FIG. A1.1
7 A2.3 Group Screening Test Procedure
A3. INSTRUCTIONS FOR PREPARATION AND OPERATION OF THE FUEL INJECTOR BENCH TEST APPARATUS
A3.1
A3.2 Fuel Injector Preparation
A3.3 Installation of Fuel Injectors
A3.4 Programming the Controller Unit
A3.5 Filling the Internal Reservoir
8 A3.6 Measuring Injector Flow
A4. TEST METHOD FOR DETERMINATION OF FUEL INJECTOR CLEAN FLOW
A4.1 Scope
A4.2 Summary of Test Method
A4.3 Procedure
A4.4
9 X1. RESULTS OF CRC INTERLABORATORY STUDY
X1.1
X1.2
TABLE X1.1
FIG. X1.1

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