Preparation and standardization of Fischer reagent; its application to determination of water in various substances including ketones; double and single burette method with electrometric endpoints; single burette method with visual end point; determination of microgramme quantities of water. Notes on sampling for determination of low water contents.
https://www.en-standard.eu/bs-2511-1970-methods-for-the-determination-of-water-karl-fischer-method/