NBN ISO 22197-1:2021

This document specifies a test method 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 ultraviolet light. This
document 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 document
also applies to materials in honeycomb-form and to plastic or paper materials if they contain ceramic
microcrystals and composites. This document does not apply to powder or granular photocatalytic
materials.
This test method is usually applicable to photocatalytic materials produced for air purification.
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. It concerns the removal of nitric oxide.