Introduction to UVC UV Aging
Q-LAB's newest production, the QUV/uvc, is a new version of the QUV for UV aging test chambers, and the main difference between it and the other QUV models is the UVC lamps, which have the same wavelengths as lamps used in ultraviolet germicidal irradiation (UVGI) applications. About 90% of the light emitted by these lamps is between 250nm and 280nm, which is in the UVC range, and almost all of the light can be focused on a single spectral line at 254nm. Also known as low-pressure mercury lamps, UVC lamps are the same as fluorescent lamps, except that there is no phosphor coating in the glass tube to change the spectral output of the 254nm peak.
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Ultraviolet UVC lamp technology has been in use since the 1950's or earlier for the disinfection of air, water and solid surfaces.DNA and RNA chemically break down when exposed to UVC energy, which makes UVC UV lamps a very effective tool for inactivating viruses, bacteria and mold roe. Due to the COVID-19 outbreak, there is even more interest in this technology in 2020.
UVGI equipment is becoming increasingly popular for disinfecting rooms and other surfaces in healthcare facilities, aircraft and public ****transportation vehicles, and other UVGI systems are being used in HVAC systems or special fixtures to reduce pathogen concentrations in indoor air.
A very important question arises, if UV energy can chemically break down DNA, what effect does it have on synthetic materials such as paint or plastics? Will materials in rooms, airplanes, or other conveyances degrade when exposed to repeated UVGI UV-sterilized cleaning environments, and how well do PPE materials tolerate UVC? UVA and UVB irradiance are known to cause damage to a range of materials, and UVC irradiance even includes high-energy photons, so this is a very relevant topic.
This is why the UV weathering tester QUV/uvc exists. For generations, materials scientists and engineers have relied on QUV to determine how well their materials hold up to natural light, and now they can use QUV/uvc UV weathering chambers in today's UV disinfection systems to test and evaluate the durability of materials exposed to UVC light.
In addition to the lamps, the QUV/uvc UV Weathering Test Chamber the following three advantages:
1. The QUV/uvc UV Weathering Test Chamber uses a variety of on-board sensors to detect UVC UV wavelengths in order to accurately measure and control irradiance and UVC dose. While many UVGI devices can theoretically be used to study the durability of materials, few can be continuously monitored and controlled at specific irradiance levels.
2. Since UVC is not designed to simulate natural weather conditions, the water delivery function has been removed as a way to simplify operation and maintenance.
3. The QUV/uvc is more focused on user safety. While all QUVs have safety features to prevent users from being exposed to large amounts of UV light, QUV/uvc takes this to a new level with safety features that prevent users from being exposed to even the smallest amount of UV light.
4. The QUV/uvc meets the requirements of the IEC 60335-1 standard, with a continuous spectral irradiance of up to 13 W/m2 at 254 nm for the UVC lamp emitter, and a black panel temperature of 63 ± 3°C.