Norm

ISO 2121:1972 en

Liquid chlorine for industrial use - Determination of water content - Gravimetric method

31,57

Over deze norm

Status Definitief
Aantal pagina's 6
Gepubliceerd op 01-07-1972
Taal Engels
The method relates to the determination of the "volatile water", that which volatilizes at the same time as the chlorine. It is applicable to products having a water content greater than 0,0005 % (m/m). It should not be applied to samples stored in bottles subject to corrosion. The principle consists in absorption of the water by passing the gasified sample into tared absorbers containing phosphorus pentoxide or magnesium perchlorate. Elimination of the gaseous chlorine and volatile impurities by flushing with air or dry nitrogen heated to 80 °C. Absorption of the chlorine in a tared bottle containing sodium hydroxide solution. Weighing of the absorbers to determine, by difference from the original masses, the mass of water.

Details

ICS-code 71.060.10
Nederlandse titel Liquid chlorine for industrial use - Determination of water content - Gravimetric method
Engelse titel Liquid chlorine for industrial use - Determination of water content - Gravimetric method

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