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BS ISO 6978-2 : 2003 AMD 16345

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

NATURAL GAS - DETERMINATION OF MERCURY - PART 2: SAMPLING OF MERCURY BY AMALGAMATION ON GOLD/PLATINUM ALLOY
Superseded date

15-07-2006

Published date

23-11-2012

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 (see Figure 1)
   8.4 Sampling procedure at high pressure (see Figure 4)
   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

Defines 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.

Committee
PTI/15
DevelopmentNote
Supersedes BS 7678(1993) and 98/123655 DC (12/2003) Renumbered and superseded by BS EN ISO 6978-2. (07/2006)
DocumentType
Standard
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 6978-2:2003 Identical

ISO 10715:1997 Natural gas — Sampling guidelines
ISO 6978-1:2003 Natural gas Determination of mercury Part 1: Sampling of mercury by chemisorption on iodine
ISO 14532:2014 Natural gas — Vocabulary
ISO 14111:1997 Natural gas — Guidelines to traceability in analysis
ISO 641:1975 Laboratory glassware — Interchangeable spherical ground joints
ISO 6570:2001 Natural gas — Determination of potential hydrocarbon liquid content — Gravimetric methods

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