M00018406
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ISO FDIS 22197-5 2012 Edition, December 19, 2012 FINE CERAMICS (ADVANCED CERAMICS, ADVANCED TECHNICAL CERAMICS) - TEST METHOD FOR AIR-PURIFICATION PERFORMANCE OF SEMICONDUCTING PHOTOCATALYTIC MATERIALS - PART 5: REMOVAL OF METHYL MERCAPTAN
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Description / Abstract:
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
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 part of ISO 22197
also applies to structured filter materials including
honeycomb-form, woven and non-woven fabrics, and to plastic or
paper materials if they contain ceramic microcrystals and
composites. This part of ISO 22197 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 methyl mercaptan.