ISO 6978-2:2003
Current
The latest, up-to-date edition.
Natural gas — Determination of mercury — Part 2: Sampling of mercury by amalgamation on gold/platinum alloy
Hardcopy , PDF
24-10-2003
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.
| Committee |
ISO/TC 193/SC 1
|
| DevelopmentNote |
Supersedes ISO/DIS 6978-2 (10/2003) Together with ISO 6978-1 supersedes ISO 6978 (11/2003)
|
| DocumentType |
Standard
|
| Pages |
17
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS EN ISO 6978-2:2005 | Identical |
| NEN EN ISO 6978-2 : 2005 C2 2016 | Identical |
| BS ISO 6978-2 : 2003 AMD 16345 | Identical |
| NEN ISO 6978-2 : 2003 C1 2004 | Identical |
| NEN-EN-ISO 6978-2:2005 | Identical |
| PN EN ISO 6978-2 : 2007 | Identical |
| DIN EN ISO 6978-2:2005-09 | Identical |
| NS EN ISO 6978-2 : 2005 | Identical |
| NF EN ISO 6978-2 : 2005 | Identical |
| I.S. EN ISO 6978-2:2005 | Identical |
| SS-EN ISO 6978-2:2005 | Identical |
| NBN EN ISO 6978-2 : 2005 | Identical |
| UNE-EN ISO 6978-2:2006 | Identical |
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