ISO 7104:1985
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Liquefied anhydrous ammonia for industrial use Determination of water content Gas chromatographic method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
25-02-2019
English, French
01-08-1985
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.
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