EN
SR EN ISO 6978-2:2005
Gaz natural. Determinarea conţinutului de mercur. Partea 2: Eşantionarea mercurului prin amalgamare pe aliaj aur/platină
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.
Status :
In vigoare
Data aprobării : 30.11.2005
Data publicării : 02.12.2005
Număr de pagini : 25
ICS : 75.060 Gaz natural
Comitet tehnic : 357 - Gaze naturale şi analiza gazelor
- Inlocuieste SR ISO 6978:2003
- Modificat de SR EN ISO 6978-2:2005/AC:2016