[Code of Federal Regulations]
[Title 40, Volume 30]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR1065.220]

[Page 661-662]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 1065_TEST PROCEDURES AND EQUIPMENT--Table of Contents
 
                Subpart C_Test Fuels and Analytical Gases
 
Sec. 1065.220  Test fuel specifications for liquefied petroleum gas.

    (a) Liquefied petroleum gas used as a test fuel must meet the 
specifications in the following table:

[[Page 662]]



                Table 1 of Sec. 1065.220--Test-Fuel Specifications for Liquefied Petroleum Gas
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               Item                         Procedure \1\                              Value
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1. Propane........................  ASTM D 2163-91                85.0 vol. percent minimum.
-----------------------------------
2. Vapor pressure at 38[deg] C....  ASTM D 1267-02 or 2598-02     14 bar maximum.
                                     \2\
-----------------------------------
3. Volatility residue (evaporated   ASTM D 1837-02                -38[deg] C maximum.
 temp., 35[deg] C).
-----------------------------------
4. Butanes........................  ASTM D 2163-91                5.0 vol. percent maximum.
-----------------------------------
5. Butenes........................  ASTM D 2163-91                2.0 vol. percent maximum.
-----------------------------------
6. Pentenes and heavier...........  ASTM D 2163-91                0.5 vol. percent maximum.
-----------------------------------
7. Propene........................  ASTM D 2163-91                10.0 vol. percent maximum.
-----------------------------------
8. Residual matter (residue on      ASTM D 2158-02                0.05 ml maximum pass.\3\
 evap. of 100 ml oil stain
 observ.).
-----------------------------------
9. Corrosion, copper strip........  ASTM D 1838-91                No. 1 maximum.
-----------------------------------
10. Sulfur........................  ASTM D 2784-98                80 ppm maximum.
-----------------------------------
11. Moisture content..............  ASTM D 2713-91                pass.
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\1\ All ASTM standards are incorporated by reference in Sec. 1065.1010.
\2\ If these two test methods yield different results, use the results from ASTM D 1267-02.
\3\ The test fuel must not yield a persistent oil ring when you add 0.3 ml of solvent residue mixture to a
  filter paper in 0.1 ml increments and examine it in daylight after two minutes (see ASTM D 2158-02).

    (b) At ambient conditions, the fuel must have a distinctive odor 
detectable down to a concentration in air of not over one-fifth of the 
lower flammability limit.