ISO 8192:2007规定了评估试验材料对活性污泥微生物耗氧量的抑制作用的方法。 该方法旨在代表生物废水处理厂的条件。它给出了短时间（通常30分钟到180分钟或更长时间）暴露试验材料后对活性污泥微生物的抑制或刺激作用的信息。 本方法适用于测试水、废水、纯化学品和化学品混合物。关于化学品，该方法指的是在试验条件下可溶的化学品。对于低水溶性或高挥发性的材料，以及非生物消耗或产生氧气的材料，需要特别小心。

ISO 8192:2007 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 biological 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 materials of low water solubility or high volatility, and with materials abiotically consuming or producing oxygen.