New Test Method for Total Water in Dimethyl Ether by Liquefied Gas Sampler and Coulometric Karl Fischer Titration
1. Scope
This test method describes the use of a specialized liquefied gas sampler coupled to a coulometric Karl Fischer (KF) titrator for the determination of water in liquid dimethyl ether .
Keywords
dimethyl ether; DME; Karl Fischer; KF titration
Rationale
This test method is based on ASTM D7995 with modification to account for the higher soluability of water in liquid DME. This test method does not cover LPG-DME blends.
