I.S. EN 12338:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
WATER QUALITY - DETERMINATION OF MERCURY - ENRICHMENT METHODS BY AMALGAMATION
Hardcopy , PDF
08-06-2012
English
01-01-1999
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 General references
4 Determination of mercury after tin (II) chloride
reduction and enrichment by amalgamation
4.1 Working range
4.2 Principle
4.3 Interferences
4.4 Reagents
4.5 Apparatus
4.6 Sampling and sample pretreatment
4.7 Digestion method using permanganate peroxodisulfate
4.8 Procedure
4.9 Calculation
4.10 Expression of results
4.11 Test report
5 Determination of mercury after sodium tetrahydroborate
reduction and enrichment by amalgamation
5.1 Working range
5.2 Principle
5.3 Interferences
5.4 Reagents
5.5 Apparatus
5.6 Sampling and sample pretreatment
5.7 Digestion method
5.8 Procedure
5.9 Calculation
5.10 Expression of results
5.11 Test report
6 Precision data
Annex A (informative) Ultrasonic digestion method
Annex B (informative) Autoclave digestion method
Annex C (informative) Microwave digestion method
Annex D (informative) Bibliography
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