LIQUEFIED PETROLEUM GAS (LPG)

Liquefied Petroleum Gas (LPG), also referred to as simply propane or butane, are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipment, vehicles and petrochemical feedstock. When specifically used as a vehicle fuel it is often referred to as autogas. LPG is almost entirely derived from fossil fuel sources, being manufactured during the refining of petroleum (crude oil), or extracted from petroleum or “wet” natural gas streams as they emerge from the ground. 

 LPG 50/50: 50% PROPANE AND 50% BUTANE MIX:

 LPG 60/40: 60% PROPANE AND 40% BUTANE MIX: 

 LPG 70/30: 70% PROPANE AND 30% BUTANE MIX:

 LPG 75/25: 75% PROPANE AND 25% BUTANE MIX:

LIQUEFIED PETROLEUM GAS (LPG)

Constituent Specifications Test Method
A: BUTANE
Sp. Gr. 15.6/15.6 Deg. C To be reported ASTM D 2598
Vapor pressure (psig at 100 Deg. F) Max 70 ASTM D 1267 or D 2598
Butane content (vol%) Min 95.0 ASTM D 2163
Volatile residue (Pentanc +) (vol%) Max 2.0 ASTM D 2163
Copper corrotion No. 1 strip ASTM D 1838
Sulfur content (ppm) Max 80 ASTM D 1266 or D 5453
H2S Negative ASTM D 2420
Free water None Visual
B: PROPANE
Sp. Gr. 15.6/15.6 Deg. C To be reported ASTM D 2598
Vapour pressure (psig at 100 Deg. F) Max 200 ASTM D 1267 or D2598
Propane content (vol%) Min 96.0 ASTM D 2163
Ethane content (vol%) Max 2.0 ASTM D 2163
Volatile residue (Butane+) (vol%) Max 2.5 ASTM D 2163
Residue on evaporation of 100ml Max 0.05 ASTM D 2158
Oil stain observation Pass ASTM D 2158
Copper corrotion No. 1 strip ASTM D 1838
Sulfur content (ppm) Max 40 ASTM D 1266 or D 5453
H2S Negative ASTM D 2420 or IP103
Moisture Pass ASTM D 2713 or D 1744