NEN EN ISO 6978-2 : 2005 C2 2016
Current
The latest, up-to-date edition.
NATURAL GAS - DETERMINATION OF MERCURY - PART 2: SAMPLING OF MERCURY BY AMALGAMATION ON GOLD/PLATINUM ALLOY
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Reagents and materials
7 Preparation of sampling and analytical tubes
7.1 Filling
7.2 Cleaning
7.3 Efficiency testing
8 Sampling
8.1 General
8.2 Conditions for representative sampling
8.3 Sampling procedure at atmospheric pressure
8.4 Sampling procedure at high pressure
8.5 Removal of condensate from discarded sampling tubes
9 Mercury determination
9.1 Transfer of mercury to the analytical tube (double
amalgamation)
9.2 Transfer of mercury to AAS or AFS instrument
9.3 Calibration
9.4 Blank test
10 Calculation
11 Precision
12 Test report
Bibliography
Define 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.
| DevelopmentNote |
Supersedes NEN ISO 6978-2. (06/2005)
|
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NS EN ISO 6978-2 : 2005 | Identical |
| NF EN ISO 6978-2 : 2005 | Identical |
| NBN EN ISO 6978-2 : 2005 | Identical |
| ONORM EN ISO 6978-2 : 2005 AC JUN 2017 | Identical |
| UNE-EN ISO 6978-2:2006 | Identical |
| UNI EN ISO 6978-2 : 2007 | Identical |
| BS EN ISO 6978-2:2005 | Identical |
| I.S. EN ISO 6978-2:2005 | Identical |
| SN EN ISO 6978-2 : 2005 COR 2016 | Identical |
| ISO 6978-2:2003 | Identical |
| DIN EN ISO 6978-2:2005-09 | Identical |
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