This International Standard specifies a method for assessing the inhibitory effect of a test material on the oxygen consumption of activated sludge microorganisms.This method is intended to represent the conditions in biology waste-water treatment plants.It gives information on inhibitory or stimulatory effects after a short exposure(usually 30 min up to 180 min or even more) of the test material on activated sludge microorganisms.This method is applicable for testing waters,waste waters,pure chemicals and mixtures of chemicals.Concerning the chemicals,the method refers to those which are soluble under the test conditions.Special care is necessary with mate
EN ISO 8192:2007 history
2007EN ISO 8192:2007 Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation (ISO 8192:2007)
1992EN ISO 8192:1992 Water Quality - Test for the Inhibition of Oxygen Consumption by Activated Sludge (ISO 8192 : 1986)