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ISO 6978:1992

Natural gas -- Determination of mercury

General information
Withdrawn from 24.10.2003
Directives or regulations
None
Standard history
Status
Date
Type
Name
24.10.2003
Main
24.10.2003
Main
Two methods are specified: method A for higher mercury content (> 0,5 µg/m^3) based on sampling at atmospheric pressure, absorption in potassium permangante solution, reduction of mercury ions, analysis by flameless atomic absorption spectrometry; method B for lower mercury content (10^- 3 µg/m^3 to 1 µg/m^3) based on sampling at atmospheric or higher pressure, adsorption on silver/gold, desorption, analysis by flameless atomic absorption spectrometry.
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