---
title: Q-Lab Weathering & Corrosion Topics | Q-SUN
description: Q-SUN | Common weathering and corrosion topics, written and published by Q-Lab Corporation.
---
[](https://blog.q-lab.com/)
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# Q-Lab Weathering & Corrosion Blog
For new blog content, visit our redesigned website at Q-Lab.com!
#### Filter Posts by Category
- [Weathering](https://blog.q-lab.com/tag/weathering)
- [Corrosion](https://blog.q-lab.com/tag/corrosion)
- [FAQ](https://blog.q-lab.com/tag/faq)
- [Outdoor](https://blog.q-lab.com/tag/outdoor)
- [Case Study](https://blog.q-lab.com/tag/case-study)
[](https://blog.q-lab.com/how-many-hours-in-a-q-sun-xenon-test-chamber-or-a-quv-weathering-tester-equals-a-year-of-outdoor-exposure?hsLang=en)
### [How many hours in a Q-SUN or a QUV equals a year of outdoor exposure?](https://blog.q-lab.com/how-many-hours-in-a-q-sun-xenon-test-chamber-or-a-quv-weathering-tester-equals-a-year-of-outdoor-exposure?hsLang=en)
by [Sean Fowler](https://blog.q-lab.com/author/sean-fowler?hsLang=en) on Aug 22, 2022 9:00:00 AM
This is a simple question, but unfortunately there is no simple answer. It is theoretically impossible to have a single...
[Read More](https://blog.q-lab.com/how-many-hours-in-a-q-sun-xenon-test-chamber-or-a-quv-weathering-tester-equals-a-year-of-outdoor-exposure?hsLang=en)
[](https://blog.q-lab.com/q-lab-to-exhibit-at-the-american-coatings-show-1?hsLang=en)
### [Q-Lab to Exhibit at the American Coatings Show](https://blog.q-lab.com/q-lab-to-exhibit-at-the-american-coatings-show-1?hsLang=en)
by [Q-Lab Corporation](https://blog.q-lab.com/author/q-lab-corporation?hsLang=en) on Mar 29, 2022 10:33:47 AM
Although the 2020 edition was cancelled, the[American Coatings Show](https://american-coatings-show.com/)is back for 2022, and Q-Lab will be there! We'll be...
[Read More](https://blog.q-lab.com/q-lab-to-exhibit-at-the-american-coatings-show-1?hsLang=en)
[](https://blog.q-lab.com/q-lab-leads-major-revision-to-astm-g155?hsLang=en)
### [Q-Lab Leads Major Revision to ASTM G155](https://blog.q-lab.com/q-lab-leads-major-revision-to-astm-g155?hsLang=en)
by [Andy Francis](https://blog.q-lab.com/author/andy-francis?hsLang=en) on Feb 8, 2022 12:21:11 PM
**Q-Lab Leads Major Revision to ASTM G155, Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of...**
[Read More](https://blog.q-lab.com/q-lab-leads-major-revision-to-astm-g155?hsLang=en)
[](https://blog.q-lab.com/why-is-it-important-to-reposition-specimens?hsLang=en)
### [Why Is It Important to Reposition Specimens?](https://blog.q-lab.com/why-is-it-important-to-reposition-specimens?hsLang=en)
by [Andy Francis](https://blog.q-lab.com/author/andy-francis?hsLang=en) on Jan 3, 2022 3:45:57 PM
#### Weathering test standards often include guidance on**repositioning**of test specimens. This is the practice of moving...
[Read More](https://blog.q-lab.com/why-is-it-important-to-reposition-specimens?hsLang=en)
[](https://blog.q-lab.com/how-many-langleys-or-joules-or-watts/m2-do-the-q-sun-and-quv-testers-produce?hsLang=en)
### [How many Langleys or joules or Watts/m2 do the Q-SUN and QUV testers produce?](https://blog.q-lab.com/how-many-langleys-or-joules-or-watts/m2-do-the-q-sun-and-quv-testers-produce?hsLang=en)
by [Dave Duecker](https://blog.q-lab.com/author/dave-duecker?hsLang=en) on Aug 18, 2021 10:17:49 AM
This question sounds straightforward, but it is based on some erroneous assumptions. Generally the person asking this...
[Read More](https://blog.q-lab.com/how-many-langleys-or-joules-or-watts/m2-do-the-q-sun-and-quv-testers-produce?hsLang=en)
[](https://blog.q-lab.com/what-does-the-back-spray-in-sae-j2527-accomplish?hsLang=en)
### [What Does the “Back Spray” in SAE J2527 Accomplish?](https://blog.q-lab.com/what-does-the-back-spray-in-sae-j2527-accomplish?hsLang=en)
by [Bill Tobin](https://blog.q-lab.com/author/bill-tobin?hsLang=en) on Jun 15, 2021 3:00:10 PM
Automotive exterior testing has been using back spray for years. It’s required in order to run SAE J2527, the...
[Read More](https://blog.q-lab.com/what-does-the-back-spray-in-sae-j2527-accomplish?hsLang=en)
[](https://blog.q-lab.com/newly-published-iso-23741-standard-quantifies-water-spray-delivery-in-xenon-arc-testing?hsLang=en)
### [Newly-published ISO 23741 standard quantifies water spray delivery in xenon arc testing](https://blog.q-lab.com/newly-published-iso-23741-standard-quantifies-water-spray-delivery-in-xenon-arc-testing?hsLang=en)
by [Andy Francis](https://blog.q-lab.com/author/andy-francis?hsLang=en) on Apr 30, 2021 2:50:25 PM
Q-Lab is pleased to announce that the International Standards Organization (ISO) has recently published the brand-new...
[Read More](https://blog.q-lab.com/newly-published-iso-23741-standard-quantifies-water-spray-delivery-in-xenon-arc-testing?hsLang=en)
[](https://blog.q-lab.com/nihon-denkei-coordinated-permissions-for-ul-japan-to-feature-a-q-sun-xe-3-in-their-promo-video-for-weathering-testing?hsLang=en)
### [UL Japan features Q-SUN Xe-3 in new promotional video for weathering testing services](https://blog.q-lab.com/nihon-denkei-coordinated-permissions-for-ul-japan-to-feature-a-q-sun-xe-3-in-their-promo-video-for-weathering-testing?hsLang=en)
by [Andy Francis](https://blog.q-lab.com/author/andy-francis?hsLang=en) on Apr 13, 2021 10:45:54 AM
Nihon Denkei coordinated permissions for UL Japan to feature a Q-SUN Xe-3 in their promo video for weathering testing.
[Read More](https://blog.q-lab.com/nihon-denkei-coordinated-permissions-for-ul-japan-to-feature-a-q-sun-xe-3-in-their-promo-video-for-weathering-testing?hsLang=en)
[](https://blog.q-lab.com/new-q-sun-e-model-and-gen-4-quv-weathering-tester?hsLang=en)
### [New Q-SUN “E” Model and Gen 4 QUV Weathering Tester](https://blog.q-lab.com/new-q-sun-e-model-and-gen-4-quv-weathering-tester?hsLang=en)
by [Q-Lab Corporation](https://blog.q-lab.com/author/q-lab-corporation?hsLang=en) on Feb 1, 2021 4:37:11 PM
We are proud to announce the launch of new Q-SUN® “E” model xenon test chambers and Gen-4 QUV® accelerated weathering...
[Read More](https://blog.q-lab.com/new-q-sun-e-model-and-gen-4-quv-weathering-tester?hsLang=en)
[](https://blog.q-lab.com/why-do-q-lab-testers-require-specific-calibration-radiometers?hsLang=en)
### [Why Do Q-Lab Testers Require Specific Calibration Radiometers?](https://blog.q-lab.com/why-do-q-lab-testers-require-specific-calibration-radiometers?hsLang=en)
by [Andy Francis](https://blog.q-lab.com/author/andy-francis?hsLang=en) on Dec 2, 2020 11:28:41 AM
QUV and Q-SUN accelerated weathering testers require the use of special calibration radiometers. The CR10 and UC10 are used...
[Read More](https://blog.q-lab.com/why-do-q-lab-testers-require-specific-calibration-radiometers?hsLang=en)
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**Q-Lab Corporation is a global provider of material durability testing products. We design and manufacture Q-PANEL standard test substrates as well as weathering, light stability, and corrosion testers. Q-Lab also offers A2LA accredited contract test services, including accelerated laboratory testing. Our weathering products and services are used by materials scientists, research and development engineering, and quality control personnel in numerous industries.**
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