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ISO 6978:1992

Natural gas — Determination of mercury

Aug 20, 1992
95.99   Withdrawal of Standard   Oct 24, 2003

General information

95.99     Oct 24, 2003

ISO

ISO/TC 193/SC 1

International Standard

75.060  

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 6978:1992
95.99 Withdrawal of Standard
Oct 24, 2003

REVISED BY

PUBLISHED
ISO 6978-1:2003

PUBLISHED
ISO 6978-2:2003