Refueling test procedures for liquefied petroleum gas-fueled vehicles.

§ 86.157-98 Refueling test procedures for liquefied petroleum gas-fueled vehicles.

(a) Equipment. (1) The sampling and analytical system shall meet the specifications in § 86.107-98(a) through (i).

(2) The refueling equipment nozzle specifications shall meet the requirements described in § 80.32.

(b) General requirements. (1) The refueling test procedure for light-duty liquefied petroleum gas-fueled vehicles and trucks starts with the preconditioning of the vehicle followed by a refueling emissions measurement. The test is conducted by following paragraphs (c) through (f) of this section in order.

(2) Ambient temperature levels encountered by the test vehicle throughout the test sequence shall not be less than 68 °F (20 °C) nor more than 86 °F (30 °C).

(3) The vehicle shall be approximately level during all phases of the test sequence to prevent abnormal fuel distribution.

(c) Vehicle preconditioning. (1) The vehicle fuel tanks are to be filled with fuel that meets the specifications in § 86.113. Fuel tanks shall be filled to 10 percent of nominal fuel tank capacity, determined to the nearest one-tenth of a U.S. gallon (0.38 liter).

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