DIN EN ISO 6978-2:2005
Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003);English version of DIN EN ISO 6978-2
- Standard No.
- DIN EN ISO 6978-2:2005
- Release Date
- 2005
- Published By
- German Institute for Standardization
- Status
- Replace By
- DIN EN ISO 6978-2:2005-09
- Latest
- DIN EN ISO 6978-2:2005-09
- Scope
- 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 iJg/m3 to 100 iJg/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 iJg/m3 to 1 IJg/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 pglm3 to 5 000 pg/m3 for sampling at pressures up to 40 MPa.
DIN EN ISO 6978-2:2005 Referenced Document
- ISO ISO IEC 27001-2013 cor2-2015 technical errata*， 2024-04-18 Update
- ISO 10715 Natural gas — Gas sampling*， 2022-10-04 Update
- ISO 14532 Natural gas - Vocabulary*， 2014-06-01 Update
DIN EN ISO 6978-2:2005 history
- 2005 DIN EN ISO 6978-2:2005-09 Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003); German version EN ISO 6978-2:2005
- 2005 DIN EN ISO 6978-2:2005 Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003);English version of DIN EN ISO 6978-2
