ASTM D1744 method for determination of water in liquid petroleum products
ASTM D1744 standard test method for determination of water in liquid petroleum products by Karl Fischer reagent
10. Procedure
10.1 Add 50 mL of solvent to the titration flask and titrate with standardized Karl Fischer reagent to the end point as described in 9.1.1. It is important to stopper the sample inlet tube as quickly as possible to prevent absorption of moisture from the atmosphere.
10.2 Obtain a hydrometer reading on the material to be tested and convert degrees API to relative density without correcting for temperature. Immediately pipet 50 mL of the sample into the titration flask. Alternatively, the sample can be weighed and added to the titration flask in any convenient manner.
10.3 Titrate the sample to the end point as described in 9.1.1. Record the millilitres of reagent used.
