ISO 19722:2017规定了通过半导体光催化物质在水相中光催化氧化苯酚而消耗的溶解氧浓度测定的试验方法。本方法适用于针对水污染物的半导体光催化材料的粉末试样或薄膜试样。本试验方法不适用于评估与其他基材共轭的材料，如有机粘合剂，其也可通过光催化活性分解。 ISO 19722:2017适用于针对水污染物的半导体光催化材料粉末试样或薄膜试样活性的试验方法。

ISO 19722:2017 specifies the test method for determination of concentration of dissolved oxygen consumed due to photocatalytic oxidation of phenol in aqueous phase by semiconducting photocatalytic substances. The method is applicable to powder test sample or film test piece of semiconducting photocatalystic material targeting water contaminants. This test method is not applicable for evaluating the materials conjugated with other base material, such as organic binder which can also be decomposed by the photocatalytic activity. ISO 19722:2017 is applicable to the test method for the activity of powder test sample or film test piece of semiconducting photocatalystic material targeting water contaminants.