This test method covers the quantitative determination of the dissolved water in liquefied petroleum gases (LPG) in the range of (to be determined) mg/kg using an electronic moisture analyzer. These analyzers use an aluminum oxide moisture sensor to measure absolute humidity, and are calibrated to report the water content of liquid phase hydrocarbons. References: ILS #516 Historical Work Item #12013
There is currently no standard that measures moisture in liquid phase LPG. Dryness of propane is controlled with a "functional" test, D2713, the Valve Freeze Method. Wet propane and other LPG products cause operational and other issues in customer equipment and downstream processes. This method will be used for quality control, and potentially in specifications. Users include refineries/producers, pipeline operators, terminals, and chemical plants.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top