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Norm
ÖNORM EN ISO 6978-2
Issue date: 2005 10 01
Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003)
This part of ISO 6978 specifies a method for the determination of total mercury content of pipeline quality
natural gas using a sampling method by amalgamation on gold/p...
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Publisher:
Austrian Standards International
Format:
Digital | 24 Pages
Language:
German
| English
| Download GER/ENG
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ICS
This part of ISO 6978 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 ug/m3 to 100 ug/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 ug/m3 to 1 ug/m3. The collected mercury is determined by
measuring the absorbance or fluorescence of mercury vapour at 253,7 nm.
NOTE ISO 6978-1 gives a sampling method suitable for the determination of mercury contents in natural gas by
chemisorption on iodine-impregnated silica gel for the working range of 0,1 ug/m3 to 5 000 ug/m3 for sampling at
pressures up to 40 MPa.
ÖNORM EN ISO 6978-2
2005 10 01
Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinu...
Norm
↖
Norm
ISO 6978-2:2003
Issue date :
2003 10 24
Natural gas — Determination of mercury — Part 2: Sampling of mercury by amalgamation on gold/platinum alloy