TITLE 40 - PROTECTION OF ENVIRONMENT

CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY

SUBCHAPTER U - AIR POLLUTION CONTROLS

PART 1065 - ENGINE - TESTING PROCEDURES

subpart h - ENGINE FLUIDS, TEST FUELS, ANALYTICAL GASES AND OTHER CALIBRATION STANDARDS

1065.720 - Liquefied petroleum gas.

  (a) Liquefied petroleum gas for testing must meet the specifications in the following table: Table 1 of 1065.720_Test Fuel Specifications for Liquefied Petroleum Gas ---------------------------------------------------------------------------------------------------------------- Item Value Reference Procedure\1\ ---------------------------------------------------------------------------------------------------------------- 1. Propane, C3H8................... Minimum, 0.85 m\3\/m\3\.... ASTM D 2163-91 2. Vapor pressure at 38 C..... Maximum, 1400 kPa.......... ASTM D 1267-02 or 2598-02 \2\ 3. Volatility residue evaporated Maximum, -38 C........ ASTM D 1837-02a temperature, 35 C).

4. Butanes......................... Maximum, 0.05 m\3\/m\3\.... ASTM D 2163-91 5. Butenes......................... Maximum, 0.02 m\3\/m\3\.... ASTM D 2163-91 6. Pentenes and heavier............ Maximum, 0.005 m\3\/m\3\... ASTM D 2163-91 7. Propene......................... Maximum, 0.1 m\3\/m\3\..... ASTM D 2163-91 8. Residual matter (residue on Maximum, 0.05 ml pass \3\.. ASTM D 2158-04 evap. of 100) ml oil stain observ.).

9. Corrosion, copper strip......... Maximum, No. 1............. ASTM D 1838-03 10. Sulfur......................... Maximum, 80 mg/kg.......... ASTM D 2784-98 11. Moisture content............... pass....................... ASTM D 2713-91 ---------------------------------------------------------------------------------------------------------------- \1\ All ASTM procedures are incorporated by reference in 1065.1010. See 1065.701(d) for other allowed procedures.

\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.

  (b) At ambient conditions, liquefied petroleum gas must have a distinctive odor detectable down to a concentration in air not more than one-fifth the lower flammable limit.