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BS EN ISO 23821:2022

BS EN ISO 23821:2022

$142.49

Cosmetics. Analytical methods. Determination of traces of mercury in cosmetics by atomic absorbtion spectrometry (AAS) cold vapour technology after pressure digestion

Published By Publication Date Number of Pages
BSI 2022 24
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This document specifies a method for determination of mercury in cosmetics by means of cold vapour atomic absorption spectrometry (AAS) with a prior pressure digestion.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
11 6 Apparatus and equipment
12 7 Procedure
7.1 General
7.2 Preparation of samples
7.3 Pressure assisted digestion
7.3.1 General
7.3.2 Preparation of sample by digestion — General case
7.3.3 Preparation of sample by digestion — Specific cases
13 7.3.4 Microwave digestion procedure
7.3.5 Preparation of measurement solutions
14 7.4 Atomic absorption spectrometry (cold vapour AAS)
7.4.1 Spectrometry settings
7.4.2 Example for AAS determination using cold vapour technology
7.5 Quality control of the analysis
8 Evaluation
8.1 Calculation
15 8.2 Limit of quantification
8.3 Reliability of the method
9 Test report
16 10 Alternative stabilizing reagents
11 Short-term stabilization when measuring with potassium permanganate solution
17 Annex A (informative) Performance of the method determined via ISO 5725 statistical approach
20 Annex B (informative) Common interlaboratory test results of ISO 23674[4] and this document
23 Bibliography

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BS EN ISO 23821:2022
$142.49