ISO 19652:2018规定了使用乙醛在室内照明环境下测定室内光活性光催化材料完全分解性能的试验方法。在本文件中，光催化材料通常由半导体金属氧化物制成，如二氧化钛、三氧化钨或其他陶瓷材料，并以粉末形式进行处理。本文件不适用于薄膜、平板、板材和其他板状材料。 该方法不适用于测定光催化材料的其他性能属性，即水污染物的分解、自发光- 清洁、防雾和抗菌作用。

ISO 19652:2018 specifies a test method for the determination of complete decomposition performance of indoor light-active photocatalytic materials under an indoor lighting environment using acetaldehyde. In this document, photocatalytic materials are usually made from semiconducting metal oxides, such as titanium dioxide, tungsten trioxide or other ceramic materials, and they are treated in powder form. This document does not apply to film, flat sheet, board and other plate-shape materials. This method is not suitable for the determination of other performance attributes of photocatalytic materials, i.e. decomposition of water contaminants, self-cleaning, antifogging and antibacterial actions.