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Standards Development
The standard specifies a dynamic method in continuous flow and in-line detection to evaluate the performance of equipment and systems for the photocatalytic purification of air, such as fans, air conditioners and various abatement systems equipped with their own power supply, their own forced ventilation and their own internal systems of lighting, with dimensions such as to be incorporated into the body of the reactor, the volume of which can vary from tens to a few hundred litres.
The performance of the photocatalytic purification system under consideration is evaluated by measuring the overall degradation rate of the toluene or VOC mixture, and of the detectable volatile VOCs possibly produced in the system, at a concentration of a few hundred ppbv, according to the method specified here using a CSTR reactor, which allows the calculation of the photocatalytic abatement rate from the observed conversion. The photocatalytic abatement rate on an absolute scale with physical and engineering significance is an important technical specification of the tested system.
Filling the regulatory gap inherent in the photocatalysis market.
A standard on this topic has already been published in Italy as UNI 11987 and will therefore be based on this.
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