scope:

This International Standard specifies a method to determine whether the amount of water content in dimethyl ether (DME) satisfies the value specified in ISO 16861. This test method is intended for use with commercially available coulometric (or volumetric) Karl Fischer reagents and for the determination of water in DME additives, lube oils, base oils, automatic transmission fluids, hydrocarbon solvents, and other petroleum products. By proper choice of the sample size, this test method can be used to determine water from mg/kg (ppm) to percent level concentrations.