这些规范通常定义了液化石油气（LP气体）的物理性质和特性，使其适用于私人、商业和工业应用。这些规范并不旨在明确定义满足所有可能应用的所有可能要求。因此，提醒用户在为特定应用制定最终规范时进行判断。液化石油气有很多用途，包括精炼、石化和加热。六人组- 本标准所代表的气体规格包括分馏等级:乙烷/丙烷混合丙烷异丁烷、正丁烷和天然气。调查了大多数行业规格，以找出制定这些规格的共同特点。

These specifications generally define physical properties and characteristics of liquefied petroleum gases (LP-gases) which make them suitable for private, commercial and industrial applications. These specifications do not purport to specifically define all possible requirements to meet all possible applications. Therefore, the user is cautioned to exercise judgment in formulating final specifications for specific applications.There are many uses for LP-gases including refining, petrochemical and heating. The six LP-gas specifications represented by this standard include Fractionation Grade:ethaneethane/propane mixpropaneiso-butanenormal butane andnatural gasolineThe majority of industry specifications were surveyed to find the common characteristics in establishing these specifications.