Safe Dispensing of Propane - Propane Dispensing Unit Operator Training Manual

		SECTION 2 Safe Dispensing of Propane
		Properties of Propane from NFPA Pamphlet #58 Appendix B

Properties of Propane from NFPA Pamphlet #58 Appendix B

Vapor Pressure in PSIG at:

70 ° F

127 PSIG

100 ° F

195 PSIG

104 ° F

210 PSIG

130 ° F

287 PSIG

Specific Gravity of Liquid at 60 ° F

0.504

Initial Boiling Point at 14.7 PSI

-44 ° F

Weight per Gallon of Liquid at 60 ° F

4.20

Specific Heat of Liquid, Bulb at 60 ° F

0.630

Cubic Ft. of Vapor per Gallon at 60 ° F

36.38

Cubic Ft. of Vapor per Pound at 60 ° F

8.66

Specific Gravity of Vapor at 60 ° F (air = 1)

1.50

Ignition of Temperature in Air (range)

920 ° to 1120 ° F

Maximum Flame Temperature in Air

3,595 ° F

Limits of Flammability in Air, Percent of Vapor in Air/Gas Mixture:

a) Lower

2.15 %

b) Upper

9.60 %

Latent Heat of Vaporization at Boiling Point

a) BTU Per Pound

184

b) BTU Per Gallon

773

Total Heating Values after Vaporization:

a) BTU Per Cubic Foot

2,488

b) BTU Per Pound

21,548

c) BTU Per Gallon

91,502