PREN 16277 : DRAFT 2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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)
01-07-2012
12-01-2013
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
Annex C (informative) - Adjustment of a microwave oven
Annex D (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 E (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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