EN ISO 16198:2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Laboratory apparatus
6 Reagents
7 Biological and growing apparatus
8 Pre-treatment and analysis of soil or soil material
   sample
9 Experimental and analytical procedure
10 Validity criteria
11 Assessment of the results
12 Statistical analysis
13 Test report
Annex A (informative) - Plant species adapted to the
        biotest procedure
Annex B (informative) - Technical drawings of the
        different components of the biotest
Annex C (informative) - Seed selection and seed density
        in plant pot for a range of species tested
        with the standardized experimental procedure
Annex D (informative) - Digestion and analysis of plant
        samples
Annex E (informative) - Range of biomasses and trace
        element quantities in control plant pots
Annex F (informative) - Ring-test
Bibliography

ISO 16198:2015 specifies the plant-based test, called biotest, which enables estimation of the environmental bioavailability of trace elements to plants either basically as the concentration in shoots and roots or in a more integrative way as the net uptake flux in plants.