As used in ORS 480.420 (Liquid petroleum gas rules and regulations) to 480.460 (Disposition of fees), "LP gas" or "liquid petroleum gas" means any liquid composed predominately of any of the following hydrocarbons or mixtures of the same: Propane, propylene, butanes (normal butane or isobutane) and butylenes. [Amended by 1957 c.712 §1]
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