Natural Gas Liquid (NGL) streams consist of mixtures of hydrocarbons including ethane, propane, butane, pentane and natural gasoline. NGL is sometimes referred to as ygrade. The American Petroleum Institute (API) Manual of Petroleum Measurement Standards (MPMS) Chapter 14 Section 7 provides guidance on the mass measurement of NGL.
Natural Gas Liquid Measurement-Direct & Inferred Mass
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