NEN EN 12338 : 1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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
07-06-2012
12-01-2013
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)
Annex C (informative) Microwave digestion method
Annex D (informative) Bibliography
Defines the determining of mercury in two parts using either tin(II) chloride or sodium tetrahydroborate as reducing agent.
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Superseded
|
| Standards | Relationship |
| SN EN 12338 : 1999 | Identical |
| EN 12338:1998 | Identical |
| I.S. EN 12338:1999 | Identical |
| BS EN 12338:1998 | Identical |
| DIN EN 12338:1998-10 | Identical |
| UNE-EN 12338:1999 | Identical |
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