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What is LPG?
Liquefied Petroleum Gas (LPG) is often incorrectly identified as propane.
In fact, LPG is a mixture of petroleum and natural gases that exist in a liquid
state at ambient temperatures when under moderate pressures (less than 1.5 MPa
or 200 psi). The following table shows the specification (U.S. HD-5 LPG) used
by suppliers for LPG-Propane. The typical composition of LPG is from a random
sampling of LPG that is supplied in Alberta. The Specification and the random
sampling that conforms to the Specifications, indicates that LPG is a quality product.
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Specification of U.S. HD-5 LPG
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Typical Composition of LPG
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Ethane
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1.4 %. by liquid volume
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Propane
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90 % min. by liquid volume
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96.1 % by liquid volume
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Propylene
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5 % max. by liquid volume
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0.41 % by liquid volume
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Butane & heavier HC
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2.5 % max. by liquid volume
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1.8 % by liquid volume
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Sulfur
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120 ppm max. by weight
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0 ppm max. by weight
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