Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for air-purification performance of semiconducting photocatalytic materials - Removal of methyl mercaptan Ingestion-build-79769 The second method is to

The second method is to sample material from the surface using one of several procedures

BS EN IEC 60193 applicable to prototype machine models having a unit power more than 5 MW and a reference diameter greater than 3 m

BS 658:1989 supersedes BS 658:1962

— equipment

Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for air-purification performance of semiconducting photocatalytic materials - Removal of methyl mercaptan Ingestion-build-79769 The second method is to1 Scope This part of ISO 22197 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 (UV A). This part of ISO 22197 is intended for