D1945-14(2019) Standard Test Method for Analysis of Natural Gas by Gas Chromatography
D1946-90(2019) Standard Practice for Analysis of Reformed Gas by Gas Chromatography
D1988-20 Standard Test Method for Mercaptans in Natural Gas Using Length-of-Stain Detector Tubes
D4888-20 Standard Test Method for Water Vapor in Natural Gas Using Length-of-Stain Detector Tubes
D4984-20 Standard Test Method for Carbon Dioxide in Natural Gas Using Length-of-Stain Detector Tubes