Gasoline used as a test fuel must meet the following specifications:
(a) Unless the standard-setting part requires testing with fuel appropriate for low temperatures, use gasoline test fuels meeting the specifications in the following table:
Table 1 of § 1065.210_General Test-Fuel Specifications for Gasoline
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Item Procedure \1\ Value
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Distillation Range:
1. Initial boiling point, °C... ASTM D 86-01 23.9-35.0\2\
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2. 10% point, °C............... ASTM D 86-01 48.9-57.2
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3.50% point, °C................ ASTM D 86-01 93.3-110.0
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4. 90% point, °C............... ASTM D 86-01 148.9-162.8
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5. End point, °C (maximum)..... ASTM D 86-01 212.8.
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Hydrocarbon composition:
1. Olefins, volume %................ ASTM D 1319-02 10 maximum
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2. Aromatics, volume %.............. ASTM D 1319-02 35 maximum
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3. Saturates........................ ASTM D 1319-02 Remainder
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Lead (organic), g/liter................. ASTM D 3237-97 0.013 maximum
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Phosphorous, g/liter.................... ASTM D 3231-02 0.0013 maximum
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Sulfur, weight %........................ ASTM D 1266-98 0.008 maximum
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Volatility (Reid Vapor Pressure), kPa... ASTM D 323-99a 60.0 to 63.4.\2,3\
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\1\All ASTM standards are incorporated by reference in § 1065.1010.
\2\For testing at altitudes above 1 219 m, the specified volatility range is 52 to 55 kPa (7.5 to 8.0) and the
specified initial boiling point range is 23.9° to 40.6° C.
\3\For testing unrelated to evaporative emissions, the specified range is 55 to 63 kPa (8.0 to 9.1 psi).
(b) If the standard-setting part requires testing with fuel appropriate for low temperatures, use gasoline test fuels meeting the specifications in the following table:
Table 2 of § 1065.210_Low-Temperature Test-Fuel Specifications for Gasoline
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Item Procedure \1\ Value
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Distillation Range:
1. Initial boiling point, °C... ASTM D 86-01 24.4-35.6.
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2. 10% point, °C............... ASTM D 86-01 36.7-47.8.
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3. 50% point, °C............... ASTM D 86-01 81.7-101.1.
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4. 90% point, °C............... ASTM D 86-01 157.8-174.4.
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5. End point, °C (maximum)..... ASTM D 86-01 211.7.
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Hydrocarbon composition:
1. Olefins, volume %................ ASTM D 1319-02 17.5 maximum.
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2. Aromatics, volume %.............. ASTM D 1319-02 30.4 maximum.
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3. Saturates........................ ASTM D 1319-02 Remainder.
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Lead (organic), g/liter................. ASTM D 3237-97 0.013 maximum.
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Phosphorous, g/liter.................... ASTM D 3231-02 0.005 maximum.
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Sulfur, weight %........................ ASTM D 1266-98 0.08 maximum.
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Volatility (Reid Vapor Pressure), kPa... ASTM D 323-99a 11.2_11.8 psi.
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\1\All ASTM standards are incorporated by reference in § 1065.1010.
(c) Use gasoline test fuel with octane values that represent commercially available fuels for the appropriate application.
[67 FR 68347, Nov. 8, 2002; 67 FR 72724, Dec. 6,
2002]