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Norm
ÖNORM EN ISO 6978-1
Issue date: 2005 10 01
Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003 )
This part of ISO 6978 specifies a method for the determination of total mercury content in natural gas using a
sampling method at pressures up to 40 MPa by chemisorption...
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Publisher:
Austrian Standards International
Format:
Digital | 22 Pages
Language:
German
| English
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ICS
This part of ISO 6978 specifies a method for the determination of total mercury content in natural gas using a
sampling method at pressures up to 40 MPa by chemisorption on iodine-impregnated silica gel. This sampling
method is suitable for the determination of mercury contents within the range of 0,1 ug/m3 to 5 000 ug/m3 in
natural gas. This method is applicable to sampled gas volumes containing less than 20 mg hydrogen sulfide
(absolute content) and less than a total liquid hydrocarbon condensate of 10 g/m3 under the sampling
conditions. The collected mercury is determined by measuring the absorbance or fluorescence of mercury
vapour at 253,7 nm.
NOTE ISO 6978-2 gives a sampling method suitable for the determination of mercury content of pipeline natural gas
by amalgamation of mercury on gold/platinum alloy thread at atmospheric pressure for the range of mercury from
0,01 ug/m3 to 100 ug/m3 and for sampling at high pressure (up to 8 MPa) from 0,001 ug/m3 to 1 ug/m3.
ÖNORM EN ISO 6978-1
2005 10 01
Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO...
Norm
↖
Norm
ISO 6570:2001
Issue date :
2001 06 28
Natural gas — Determination of potential hydrocarbon liquid content — Gravimetric methods
Norm
ISO 6570:2001
Issue date :
2001 06 28
Natural gas — Determination of potential hydrocarbon liquid content — Gravimetric methods
Norm
ISO 6978-1:2003
Issue date :
2003 10 24
Natural gas — Determination of mercury — Part 1: Sampling of mercury by chemisorption on iodine