Liquefied petroleum gas.

§ 1065.720 Liquefied petroleum gas.

(a) Except as specified in paragraph (b) of this section, liquefied petroleum gas for testing must meet the specifications in the following table:

Table 1 to Paragraph (a) of § 1065.720—Test Fuel Specifications for Liquefied Petroleum Gas

Property Value Reference procedure a
Propane, C3H8Minimum, 0.85 m 3/m 3ASTM D2163.
Vapor pressure at 38 °CMaximum, 1400 kPaASTM D1267 or
ASTM D2598 b.
ButanesMaximum, 0.05 m 3/m 3ASTM D2163.
ButenesMaximum, 0.02 m 3/m 3ASTM D2163.
Pentenes and heavierMaximum, 0.005 m 3/m 3ASTM D2163.
PropeneMaximum, 0.1 m 3/m 3ASTM D2163.
Residual matter (residue on evaporation of 100 ml oil stain observation)Maximum, 0.05 ml pass cASTM D2158.
Corrosion, copper stripMaximum, No. 1ASTM D1838.
SulfurMaximum, 80 mg/kgASTM D6667.
Moisture contentpassASTM D2713.
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