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  • BSI
    BS EN ISO 6978-2:2005 Natural gas. Determination of mercury - Sampling of mercury by amalgamation on gold/platinum alloy
    Edition: 2017
    $435.35
    / user per year

Description of BS EN ISO 6978-2:2005 2017

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 µg/m 3 to 100 µg/m 3 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 µg/m 3 to 1 µg/m 3. 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 µg/m 3 to 5 000 µg/m 3 for sampling at pressures up to 40 MPa.



Standard NumberBS EN ISO 6978-2:2005
TitleNatural gas. Determination of mercury - Sampling of mercury by amalgamation on gold/platinum alloy
StatusUnder Review
Publication Date2017-03-31
ReplacesBS 7678:1993
Identical National Standard OfISO 6978-2:2003/COR 1:2004, ISO 6978-2:2003/Cor 2:2006, EN ISO 6978-2:2005/AC:2016
CorrectsBS EN ISO 6978-2:2005
DescriptorsAdsorption, Test specimens, Specimen preparation, Natural gas, Determination of content, Testing conditions, Atomic absorption spectrophotometry, Test equipment, Mercury, Sampling methods, Gas analysis, Chemical analysis and testing
ICS75.060 Natural gas
CommitteePTI/15
ISBN978 0 580 96182 3
PublisherBSI
Pages28

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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