ISO 5920:1983

Chlorofluorinated hydrocarbons — Determination of water content — Gravimetric method

Covers a method applicable to products having water contents in the range between 2 and 100 mg/kg. Uses a principle consisting in the passage of a vaporized test portion through two weighed absoprtion tubes containing a phosphorus(V) oxide absorption mixture, and calculation of the water content from the increase in mass of the absorption tubes.