EN 16277:2012

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
6 Procedure
7 Calculation
8 Precision
9 Test report
Annex A (informative) - Results of the interlaboratory
        tests
Annex B (informative) - Flowchart - Determination of
        mercury by CVAAS after microwave digestion
Annex C (informative) - Alternative digestion procedure
        with the same extraction efficiency: Acid
        digestion with a mixture of 65% nitric
        acid and 70% perchloric acid (7:3 v/v) at
        atmospheric pressure
Annex D (informative) - Alternative digestion procedure
        with the same extraction efficiency: Acid
        digestion with a mixture of 65% nitric acid,
        37% hydrochloric acid and 30% hydrogen
        peroxide under reflux
Bibliography

This European Standard specifies a method for the determination of mercury in animal feeding stuffs by Cold-Vapour Atomic Absorption Spectrometry (CVAAS) after microwave pressure digestion. The limit of quantification in the test solution should be 0,25 µg/l or lower. Using a test portion of 0,5 g and a volume of the test solution of 25 ml a limit of quantification of 0,0125 mg/kg or lower should be obtained.