EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 15714 testing. This standard describes a method in the laboratory for evaluating the performance of ultraviolet germicidal irradiation (UVGI) devices to be installed in the duct in heating, ventilation and air conditioning (HVAC) systems.
The method includes detailed requirements for test equipment, microorganisms, procedures, data calculation and results report to determine the UV dose to model microorganisms by a UVGI instrument at various air flow rates. According to the test results, the capacity of in-duct UVGI devices for air disinfection can be reliably evaluated and compared.
If the susceptibility constant of a particular microorganism is known, the rate of inactivation of that microorganism by the tested UVGI instruments can be further calculated.
Airborne microorganisms, including some indoor airborne pathogens, can cause different types of diseases or adverse health effects on humans. Among the different air disinfection techniques, ultraviolet germicidal irradiation (UVGI) has been used for decades to effectively neutralize airborne microorganisms in indoor air, thereby preventing the transmission of various airborne infections.
The in-duct UVGI device is the primary air disinfection method used to irradiate microorganisms in the air at high intensity with UV lamps installed in heating, ventilation and air conditioning (HVAC) systems. However, no standards or indexes exist other than the power supply to characterize or understand the performance of UVGI products made by different manufacturers. In addition, effective parameters derived from a standard method are missing to predict the performance of the UVGI instrument on microorganism inactivation in a real HVAC system.
Since airborne microorganisms are irradiated with UV-C light emitted by an in-duct UVGI device, the rate of inactivation of a particular microorganism primarily depends on the UV dose delivered by the device and the sensitivity of that microorganism. If the UV dose under a given condition is known, the inactivation capacity and disinfection performance of UVGI devices can be compared. In addition, the inactivation rate for a given microorganism can be calculated from known susceptibility data.
EUROLAB assists manufacturers with ISO 15714 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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