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EN ISO 6978-2:2005

Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003) EN ISO 6978-2:2005

Publication date:   Oct 30, 2007

General information

60.60 Standard published   May 11, 2005

CEN

CEN/TC 238 Test gases, test pressures, appliance categories and gas appliance types

European Norm

75.060   Natural gas

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Scope

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.

Life cycle

NOW

PUBLISHED
EN ISO 6978-2:2005
60.60 Standard published
May 11, 2005

CORRIGENDA / AMENDMENTS

PUBLISHED
EN ISO 6978-2:2005/AC:2016

Relations

Adopted from ISO 6978-2:2003 IDENTICAL