Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for water purification performance of semiconducting photocatalytic materials by measurement of forming ability of active oxygen1 Scope This International Standard describes a test method covering photocatalytic materials formed on, or attached to, another material surface for the purpose of decomposing, and thus eliminating the pollutants in water, using photocatalytic performance. This test method is applicable to photocatalytic materials under UV irradiation, and not under visible light irradiation.

ISO/TS 21805 you will be able to analyse that an enclosure may require additional pressure-relief vent area in order to avoid exceeding specified maximum pressure values upon discharge of a gaseous agent system

in the food trade)

This European Standard applies to transmission systems for all types of alarm messages such as fire

and reclamation of the electrical equipment in an explosive atmosphere

Manufacturers of circuits

This standard does not cover filler aggregates to be used as a constituent in cement or as other than inert filler aggregates for concrete

Manufacturers and suppliers of electronic devices

Auxiliary components

Download our parents' guide to toy safety (BS EN 71 series)

which includes ambient temperature

The bending strength formulae are applicable to fractures at the tooth fillet

specification of concrete