Over deze norm
This part of ISO 14592 specifies a test method for evaluating the biodegradability of organic test compounds by aerobic microorganisms by means of a shake-flask batch test. It is applicable to natural surface water, free from coarse particles to simulate a pelagic environment ("pelagic test") or to surface water with suspended sediments added to obtain a level of 0,1 g/l to 1 g/l dry mass to simulate a water body with suspended sediment ("suspended sediment test"). This part of ISO 14592 is applicable to organic test compounds present in lower concentrations (normally below 100 Âµg/l) than those of natural carbon substrates also present in the system. Under these conditions, the test compounds serve as a secondary substrate and the kinetics for biodegradation would be expected to be first order ("non-growth" kinetics).
||Water - Bepaling van de aerobe bioafbreekbaarheid van organische componenten in lage concentraties - Deel 1: Schudfles batchproef met oppervlaktewater of met oppervlaktewater/sedimentsuspensies
||Water quality - Evaluation of the aerobic biodegradability of organic compounds at low concentrations - Part 1: Shake-flask batch test with surface water or surface water/sediment suspensions