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Q-Lab is excited to announce the official release of the brand new TUV-421 lamps for QUV accelerated weathering testers. These innovative lamps help distribute a much broader spectrum of light, in comparison to your typical UVA-340 fluorescent lamps,...

Q-Lab is proud to have been recognized at SPE CAD RETEC 2024! The organization awarded Q-Lab with the Best Paper for last year's contribution High Irradiance Weathering Testing of Plastics, marking the third time Q-Lab has received this honor. The ph...

The QUV accelerated weathering tester reproduces the damage caused by sunlight, rain and dew. In a few days or weeks, the QUV UV tester can reproduce the damage that occurs over months or years outdoors. To simulate outdoor weathering, the QUV accele...

A recent episode of This Old House, an American TV series that highlights do-it-yourself home improvement tasks, examined the properties of Solar Reflective Asphalt Shingles. Part of the qualification for these shingles included a QUV accelerated wea...

The first three parts in this series discussed what the QUV/uvc is and why it was developed, outlined two published UVC exposure protocols, and provided background information for developing UVC exposure protocols. In this final post in the series, w...

In the last post on the QUV/uvc, we discussed two published standards with UVC exposure protocols, covering quite different applications. In this post, we’ll discuss designing QUV/uvc exposure methods for materials that encounter UVGI protocols in us...

In our first post on the QUV/uvc, we discussed why the QUV/uvc was designed and the differences between it and the QUV accelerated weathering chamber used for generations to conduct UV weathering studies. In this post, we’ll go over published UVC exp...

The QUV/uvc is a new version of the QUV accelerated weathering tester. The main difference between it and other QUV models is that it is designed to operate UVC lamps, which are functionally identical to those used in ultraviolet germicidal irradiati...

QFS-40 and UVB-313EL lamps are both used in QUV accelerated weathering testers to provide fluorescent UV light that includes a significant UVB component for faster testing. The diagram below shows that both have similarly-shaped spectral power distri...