ISO 18560-1:2014规定了一种测试方法，用于测定含有室内光活性光催化剂或表面具有室内光活性光催化薄膜的材料的空气净化性能，这些材料通常由半导体金属氧化物制成，如二氧化钛或其他陶瓷材料，在室内光照下，将试样连续暴露于模型空气污染物中。选择甲醛（HCHO）是因为它是一种典型的室内空气污染物，会导致所谓的“病态建筑综合症”。ISO 18560的本部分旨在评估建筑材料的光催化性能，如板材、壁纸。ISO 18560的本部分不适用于粉末或颗粒光催化材料。 本试验方法通常适用于用于空气净化的室内光活性光催化材料。该方法不适用于测定光催化材料的其他性能属性，即。 e、 分解水污染物、自清洁、防雾和抗菌作用。本试验方法基于ISO 16000-23，并针对室内光活性光催化材料的测量进行了调整。 注:ISO 22197-4中描述了使用甲醛测定光催化材料空气净化性能的另一种试验方法。ISO 22197的试验方法用于评估紫外光照射下基于材料的空气净化性能，而ISO 18560的本部分旨在提供室内光活性光催化材料在模拟条件下改善室内空气质量的直接指标。ISO 22197-4的结果与ISO 18560的本部分之间的近似相关性已得到证实。

ISO 18560-1:2014 specifies a test method for the determination of the air-purification performance of materials that contain a indoor-light-active photocatalyst or have indoor-light-active photocatalytic films on the surface, usually made from semiconducting metal oxides, such as titanium dioxide or other ceramic materials, by continuous exposure of a test piece to the model air pollutant under illumination with indoor light. Formaldehyde (HCHO) is chosen because it is a typical indoor air pollutant that causes the so-called sick building syndrome. This part of ISO 18560 is intended to evaluate the photocatalytic performance for building materials, such as boards, wallpapers. This part of ISO 18560 does not apply to powder or granular photocatalytic materials. This test method is usually applicable to indoor-light-active photocatalytic materials produced for air purification. This method is not suitable for the determination of other performance attribute of photocatalytic materials, i.e. decomposition of water contaminants, self-cleaning, antifogging and antibacterial actions. This test method is based on ISO 16000？23 and is adjusted for the measurement of indoor-light-active photocatalytic materials. NOTE Another test method for the determination of air-purification performance of photocatalytic materials by using formaldehyde is described in ISO 22197？4. The test methods comprising of ISO 22197 are prepared for evaluation of material-based air-purification performance under irradiation of ultraviolet light, while this part of ISO 18560 is intended for providing a direct index to the improvement of indoor air quality by the indoor-light-active photocatalytic materials under the simulated conditions. Approximate correlation between the results by ISO 22197？4 and this part of ISO 18560 has been confirmed.