ISO DIS 17168-1

Description / Abstract: This test method provides a procedure for the determination of the air purification performance of materials that contain a photocatalyst or have 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 only.

This standard is intended for use with different kinds of materials such as construction materials in flat sheet, board or plate shape that are the basic forms of materials for various applications. This standard also applies to materials in honeycomb-form and to plastic or paper materials if they contain ceramic microcrystals and composites. The standard does not apply to powder or granular photocatalytic materials.

This test method is usually applicable to photocatalytic materials produced for air purification. Other performance attributes of photocatalytic materials, i.e., decomposition of water contaminants, self-cleaning, antifogging and antibacterial actions, are not to be determined by this method.