EN ISO 10253:2016

European foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Materials
6 Apparatus
7 Procedure
8 Validity criteria
9 Interpretation of data
10 Expression of results
11 Interpretation of results
12 Test report
Annex A (informative) - Preparation of dilution
        series of mixtures in sea water(effluents or elutriates)
Annex B (informative) - Test procedure starting
        from stored algal inocula, and with direct
        measurement of algal growth in
        spectrophotometric cells
Annex C (informative) - Performance data
Bibliography

ISO 10253:2016 specifies a method for the determination of the inhibition of growth of the unicellular marine algae Skeletonema sp. and Phaeodactylum tricornutum by substances and mixtures contained in sea water or by environmental water samples (effluents, elutriates, etc.).The method can be used for testing substances that are readily soluble in water and are not significantly degraded or eliminated in any other way from the test medium.