I.S. EN 16277:2012
Current
The latest, up-to-date edition.
ANIMAL FEEDING STUFFS - DETERMINATION OF MERCURY BY COLD-VAPOUR ATOMIC ABSORPTION SPECTROMETRY (CVAAS) AFTER MICROWAVE PRESSURE DIGESTION (EXTRACTION WITH 65% NITRIC ACID AND 30% HYDROGEN PEROXIDE)
Hardcopy , PDF
English
01-01-2012
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
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus and equipment
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
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