API 4646 : 1996

Table of Contents

Section
EXECUTIVE SUMMARY
1 INTRODUCTION
2 TEST FUELS
         FUEL PROCUREMENT AND FORMULATION
         FUEL ANALYSIS
         FUEL MATRIX
3 PHASE 1 STUDY
         VAPOR PRESSURE MEASUREMENTS
         Apparatus and Procedure
         Results
    TEMPERATURE LIMITS OF FLAMMABILITY
         Apparatus
         Procedure
         Results
4 PHASE II STUDY
         VAPOR PHASE SPECIATION
         Apparatus and Procedures
         Analytical Method
         Speciation Results
    STRATIFICATION
         General Approach
         Experiment I
         Experiment II
         Fuel Tank Test
         Procedure
         Results
5 SUMMARY OF KEY FINDINGS
REFERENCES
Appendix A
    VAPOR PRESSURE DATA
Appendix B
    CORRELATIONS OF VAPOR PRESSURE WITH TEMPERATURE
    AND RVP
Appendix C
    TEMPERATURE LIMITS OF FLAMMABILITY DATA
Appendix D
    FLAMMABILITY LIMITS OF HYDROCARBONS
Appendix E
    REGRESSION COEFFICIENTS FOR UPPER TEMPERATURE
    FLAMMABILITY LIMIT DATA IN FIGURE 5
Appendix F
    VAPOR PHASE SPECIATION OF TEST FUELS
Appendix G
    STRATIFICATION EXPERIMENTS
Appendix H
    FUEL TANK TEST

Abstract

Describes twenty-two test fuels varied with respect to Reid vapor pressure pentane-to-butane ratio, and addition of ethanol and MTBE, to evaluate the conditions under which vapors from reformulated gasoline contained in automobile fuel tanks become flammable.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN