What is ISO 15714-Ultraviolet germicidal irradiation (UVGI) about?
ISO 15714 discusses ultraviolet germicidal irradiation (UVGI) devices. Airborne microorganisms including some pathogens in indoor air may cause different types of diseases or adverse health effects on humans.
Among different air disinfection techniques, ultraviolet germicidal irradiation (UVGI) has been used for several decades to effectively inactivate the airborne microorganisms in indoor air and thereby prevent the transmission of a variety of airborne infections.
ISO 15714 describes a method in the laboratory to assess the performance of ultraviolet germicidal irradiation (UVGI) devices which will be mounted induct in heating, ventilating, and air-conditioning (HVAC) systems.
Who is ISO 15714-Ultraviolet germicidal irradiation (UVGI) for?
ISO 15714 on ultraviolet germicidal irradiation (UVGI) devices is useful for:
- HVAC (ventilation and air-conditioning) manufacturers
- UVGI (ultraviolet germicidal irradiation) device manufacturers
- Health and safety bodies
- Quality control personnel
- Testing laboratories
Why should you use ISO 15714-Ultraviolet germicidal irradiation (UVGI)?
In-duct UVGI device is a primary form of air disinfection method by UV lamps mounted in heating,
ventilation, and air-conditioning (HVAC) systems to irradiate the microorganisms in the air with high intensities. However, other than the power supply, there is no standard or index available to characterize or understand the performance of the UVGI products made by different manufacturers. In addition, effective parameters derived from a standard method are lacking to predict the performance of the UVGI device on microorganism inactivation in a real HVAC system.
The method in ISO 15714 includes the detailed requirements for test rig, microorganisms, procedures, data calculation, and result report to determine the UV dose to model microorganisms by a UVGI device at several airflow rates. By the testing results, the capacity of in-duct UVGI devices for air disinfection can be evaluated and compared reliably. If the susceptibility constant of a given microorganism is known, the inactivation rate of that microorganism by the tested UVGI devices can be further calculated.
