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.
Status: WithdrawnPublication date: 1992-08
Edition: 1Number of pages: 11
Technical Committee: ISO/TC 193/SC 1 Analysis of natural gas
- ICS :
- 75.060 Natural gas
ISO 6978:1992Stage: 95.99
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