What is BS EN 16845-1- Dyes for photocatalytic self-cleaning about?
BS EN 16845-1 specifies a test method for the evaluation of the photocatalytic self-cleaning performance of materials showing photocatalytic activity, usually based on semiconducting metal oxides such as titanium dioxide, by the measurement under solid/solid conditions of the decolouring the ability under irradiation with ultraviolet light (UV-A) of a test sample on which a dye solution is sprayed and dried.
BS EN 16845-1 is intended for use with opaque and rough surfaces of different kinds, such as construction materials in flat sheet, board or plate shape, that are the basic forms of materials for various applications.
BS EN 16845-1 also applies to fabric, plastic or composites containing photocatalytic materials that are not soluble in acetone. The method evaluates only the self-cleaning ability of the material under ultraviolet light irradiation.
Note1: BS EN 16845-1 does not apply to photocatalytic glass, granular materials (unless they are deposited in compact films or layers over flat solid surface) and flat nonporous materials.
Note2: BS EN 16845-1 cannot be applicable to evaluate other performance attributes of photocatalytic materials, for example, decomposition of water contaminants in liquid or gas phases contacting the material, and antifogging and antibacterial actions.
Who is BS EN 16845-1- Dyes for photocatalytic self-cleaning for?
BS EN 16845-1 on dyes for photocatalytic self-cleaning is useful for:
- Construction industries
- Metal and welding industries
- Botanist
- Research and development team
- Testing laboratories
Why should you use BS EN 16845-1- Dyes for photocatalytic self-cleaning?
BS EN 16845-1 concerns the comparison and the quality assurance of photocatalytic materials used as self-cleaning materials.
The method described in BS EN 16845-1 is intended to measure the photocatalytic self-cleaning performance of a photocatalytic material by evaluating its ability to clean its surface, previously covered by a known amount of coloured organic compound, because of the exposition to ultraviolet light.
BS EN 16845-1 provides you with procedures for the measurement of the disappearance rate of a dye on the surface of the test sample to quantify the photocatalytic self-cleaning rate of the test sample.
