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Q-Lab Receives Recognition at SPE CAD RETEC 2024
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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...
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ISO 105-B04, Test Protocol for Outdoor Testing of Textiles, Receives Significant Revision
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For the first time in over 30 years, the test standard ISO 105-B04 Textiles — Tests for colour fastness Part B04: Colour fastness to artificial weathering: Xenon arc fading lamp test has been updated. This revision clarifies the intent of the standar...
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Can the results of tests in two different conditions be compared?
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Background: For a test in QUV we can choose between two conditions that give the same amount of total energy: Test A: Irradiance 0.65W/m2 for a time of 3000h.Test B: Irradiance 0.83W/m2 for 2500h.The testing samples are films, with a thick...
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Introduction to Weathering
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What Is Weathering?Weathering and LightstabilityWeathering refers to changes in material properties that result from exposure to the radiant energy present in sunlight, in combination with heat (including temperature cycling), and water in its variou...
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How many hours in a Q-SUN or a QUV equals a year of outdoor exposure?
Blog
This is a simple question, but unfortunately there is no simple answer. It is theoretically impossible to have a single "magic number" that you can multiply by weathering tester exposure hours to compute years of outdoor exposure. The problem is not ...
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Q-Lab Testers Are Now Available in 17 Languages
Blog
Q-Lab is pleased to announce that all QUV, Q-SUN, and Q-FOG weathering and corrosion testers with the Gen 4 Touchscreen Displays can now be operated in 17 different languages. This represents a major expansion of Q-Lab's industry-leading on-screen la...
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Testing Your Product’s Durability Can Make you Feel Free as a Bird!
Blog
Plastics, coatings, and other materials used outdoors are exposed to harmful UV light, high temperatures, and water in the form of dew and rain, which can cause a variety of physical and chemical degradation modes.One of the most common types of prod...
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QUV Accelerated Weathering Tester Featured in the Testing of Solar Reflective Shingles.
Blog
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...
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Why Is It Important to Reposition Specimens?
Blog
Weathering test standards often include guidance on repositioning of test specimens. This is the practice of moving specimens to different locations within a test chamber over the course of a test. Q-Lab considers specimen repositioning a best practi...
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How many Langleys or joules or Watts/m2 do the Q-SUN and QUV testers produce?
Blog
This question sounds straightforward, but it is based on some erroneous assumptions. Generally the person asking this intends to take the light output of the testers (expressed in Langleys, joules, or Watts/m2) and divide it by the intensity of outdo...
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Showing 1-10 of 38
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