ISO 6978-2:2003 Preview
Natural gas -- Determination of mercury -- Part 2: Sampling of mercury by amalgamation on gold/platinum alloy
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
This ISO 6978-2:2003 specifies a method for the determination of total mercury content of pipeline quality natural gas using a sampling method by amalgamation on gold/platinum (Au/Pt) alloy thread. This method is applicable to the sampling of raw natural gas when no condensation is present. At atmospheric pressure, this method is suitable for the determination of mercury content within the range of 0,01 microgram /m3 to 100 micrograms/m3 in natural gas samples. At higher pressures (up to 8 MPa), this sampling method is suitable for the determination of mercury contents within the range of 0,001 microgram/m3 to 1 microgram/m3. The collected mercury is determined by measuring the absorbance or fluorescence of mercury vapour at 253,7 nm.
General information
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Current status : PublishedPublication date : 2003-10
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Edition : 1Number of pages : 17
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- ICS :
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Natural gas
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Life cycle
A standard is reviewed every 5 years
Revisions / Corrigenda
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Previously
ISO 6978:1992
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Now confirmed
ISO 6978-2:2003 -
Corrigenda/Amendments
ISO 6978-2:2003/Cor 1:2004
ISO 6978-2:2003/Cor 2:2006