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GPA 2172-09Calculation of Gross Heating Value, Relative Density, Compressibility and Theoretical Hydrocarbon Liquid Content for Natural Gas Mixtures for Custody Transferstandard by GPA Midstream Association, 01/01/2009
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GPA 2166-05Obtaining Natural Gas Samples for Analysis by Gas Chromatographystandard by GPA Midstream Association, 01/01/2005
GPA 2177-03Analysis of Natural Gas Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatographystandard by GPA Midstream Association, 01/01/2003
GPA 2198-03Selection, Preparation, Validation, Care and Storage of Natural Gas and Natural Gas Liquids Reference Standard Blendsstandard by GPA Midstream Association, 01/01/2003
GPA 2186-14Method for the Extended Analysis of Hydrocarbon Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Temperature Programmed Gas Chromatographystandard by GPA Midstream Association, 2014
GPA 2166-17Obtaining Natural Gas Samples for Analysis by Gas Chromatographystandard by GPA Midstream Association, 01/01/2017
GPA 2172-19Calculation of Gross Heating Value, Relative Density, Compressibility and Theoretical Hydrocarbon Liquid Content for Natural Gas Mixtures for Custody Transferstandard by GPA Midstream Association, 2020GPA Midstream and API
GPA 2377-19Test for Hydrogen Sulfide and Carbon Dioxide in Natural Gas Using Length of Stain Tubesstandard by GPA Midstream Association, 2020GPA Midstream Association
GPA 2140-17Liquefied Petroleum Gas Specifications and Test Methodsstandard by GPA Midstream Association, 2017
UNE 20509-2:1990 RADIO INTERFERENCE CHARACTERISTICS OF OVERHEAD POWER LINES AND HIGH-VOLTAGE EQUIPMENT. METHODS OF MEASUREMENT AND PROCEDURE FOR DETERMINING LIMITS