ISO 7827:2010规定了需氧微生物在给定浓度范围内评估有机化合物“就绪”和“最终”生物降解性的方法。在这种情况下，ISO 7827:2010还对术语“就绪”和“最终”给出了具体定义。 该方法适用于以下有机化合物:a）在试验条件下使用的浓度下可溶[溶解有机碳（DOC）浓度为10 mg/l至40 mg/l]；b） 不挥发或在试验条件下蒸汽压可忽略；c） 不明显吸附在玻璃和活性污泥上；d） 在为试验选择的浓度下，对试验微生物无抑制作用。 该方法不适用于废水，因为它们通常含有大量水不溶性有机碳，DOC测量中不包括这些有机碳。

ISO 7827:2010 specifies a method for the evaluation of the “ready” and “ultimate” biodegradability of organic compounds at a given range of concentrations by aerobic microorganisms. In this context, ISO 7827:2010 also gives specific definitions for the terms “ready” and “ultimate”. The method applies to organic compounds which are: a) soluble at the concentration used under the conditions of the test [dissolved organic carbon (DOC) concentrations of 10 mg/l to 40 mg/l]; b) non？volatile or having a negligible vapour pressure under the conditions of the test; c) not significantly adsorbable on glass and activated sludge; d) not inhibitory to the test microorganisms at the concentration chosen for the test. The method is not suitable for waste waters, as they usually contain significant amounts of water？insoluble organic carbon, which is not included in DOC measurements.