EN ISO 8692:2012

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and media
6 Apparatus
7 Procedure
8 Validity criteria
9 Calculation
10 Expression of results
11 Interpretation of results
12 Precision
13 Test report
Annex A (informative) - Rapid screening of waste water algal
        growth inhibition
Annex B (informative) - Test procedure with algae from algal
        beads, with direct measurement of algal growth in
        spectrophotometric cells
Annex C (informative) - Procedure for immobilization of algae
        in alginate beads
Bibliography

ISO 8692:2012 specifies a method for the determination of the growth inhibition of unicellular green algae by substances and mixtures contained in water or by waste water. This method is applicable for substances that are easily soluble in water.With modifications to this method, as specified in ISO 14442 and ISO 5667-16, the inhibitory effects of poorly soluble organic and inorganic materials, volatile compounds, heavy metals and waste water can be tested.A rapid algal growth inhibition screening test for waste water is described in an annex.An alternative test procedure with algae from algal beads, with direct measurement of algal growth in spectrophotometric cells, is described in an annex.