Liquefied Petroleum Gas

Liquefied Petroleum Gas (also called LPG, LP Gas or Autogas) is a mixture of Hydrocarbon Gases used as a fuel in heating appliances and vehicles, and increasingly replacing Chlorofluorocarbons as an aerosol propellant a refrigerant to reduce damage to the world’s Ozone Layer.

Varieties of LPG bought and sold include mixes that are primarily Propane, mixes that are primarily Butane, and the more common mixes that are Propane 60% and Butane 40%. Depending on the season, in winter more Propane and in summer more Butane – and are usually also present in    small concentration. A powerful odorant Ethanethiol is also added so that leaks can be easily detected. The international standard is EN 589.

LPG is manufactured during refining of Crude Oil or extracted from oil or streams as they emerge from the ground.

At normal temperatures and pressures LPG will evaporate and because of this LPG is supplied in pressurised bottles.

Specification required for the LPG 50% Propane and 50% Butane mix.