This International Standard specifies the determination of the antiviral activity of materials that
contain indoor-light-active photocatalytic materials or have indoor-light-active photocatalytic films
on the surface by a test method that measures the infectivity titre of bacteriophage Q-beta after
illumination with indoor light.
NOTE In the test method, the surrogate microbe is bacteriophage Q-beta, intended as a model for influenza
viruses.
This International Standard is intended for use with different kinds of indoor-light-active photocatalytic
materials used in construction materials, in flat sheet, board or plate shape that are the basic forms of
materials for various applications. It does not include powder, granular or porous indoor-light-active
photocatalytic materials.
This International Standard is applicable to indoor-light-active photocatalytic materials produced for
an antiviral applications. Other types of performance of indoor-light-active photocatalytic materials,
i.e. antibacterial activity, antifungal activity, decomposition of water contaminants, self-cleaning,
antifogging and air purification, are not determined by this method.