NEN EN 1483 : 2007

Introduction
1 Scope
2 Normative references
3 General interferences
4 Determination of mercury after tin (II) chloride
    reduction without enrichment
    4.1 Principle
    4.2 Interferences
    4.3 Reagents
    4.4 Apparatus
    4.5 Sampling and sample pretreatment
    4.6 Digestion method using potassium permanganate/
          potassium peroxodisulfate
    4.7 Procedure
    4.8 Calculation
    4.9 Expression of results
    4.10 Test report
5 Determination of mercury after sodium tetrahydroborate
    reduction without enrichment
    5.1 Principle
    5.2 Interferences
    5.3 Reagents
    5.4 Apparatus
    5.5 Sampling and sample pretreatment
    5.6 Digestion method
    5.7 Procedure
    5.8 Calculation
    5.9 Expression of results
    5.10 Test report
6 Precision data
Annex A (informative) Ultrasonic digestion method
Annex B (informative) Autoclave digestion method
Annex C (informative) Microwave digestion method

Describes two methods for the determination of mercury in water, for example in drinking, ground, surface and waste waters, in a concentration range from 0,1 [mu]g/l to 10 [mu]g/l. Higher concentrations can be determined if the water sample is diluted.