Standard
[PUBLISHED]
ISO 7104
ISO 7104
Liquefied anhydrous ammonia for industrial use -- Determination of water content -- Gas chromatographic method
Title (German)
Verflüssigtes wasserfreies Ammoniak für Industriezwecke - Bestimmung des Wassergehaltes - Gaschromatographische Methode
Brief description
The water present in a sample is tranformed into acetylene by reaction with calcium carbide. The acetylene formed is determined by gas chromatography using an external standard consisting of a standard gas mixture with an inert gas, containing a known amount of acetylene. The method is applicable to products having water contents between 5 mg/kg and 3000 mg/kg.
