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JASO M609/M610 CCT-I and CCT-II are cyclic corrosion tests that feature a fast transition between conditions. This fast transition requirement is designed to reduce variability between testers and laboratories. The primary difficulty in this test met...

The term “wet bottom” is used in two common standards for corrosion testing - ASTM G85 and SAE J2334. ASTM G85 calls for a few cm of water retained in the bottom of the chamber; SAE J2334 calls for either a reservoir of immersively-heated water or st...

A) QUVThe QUV weathering tester is fast and economical. Fluorescent UV lamps provide the best simulation of solar UV. However, the QUV lacks the longer wavelengths necessary for testing certain materials.Short-Wave UV: The QUV tester provides the bes...

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...

Are you ready to start your first weathering or corrosion test program but aren’t sure how the process works? Don't worry – Q-Lab is here to make it simple for you! Here are a few important tips to get things rolling.The first step is to contact us. ...

Cyclic corrosion testing is intended to be a more realistic way to perform salt spray tests than traditional, steady state exposures. Because actual atmospheric exposures usually include both wet and dry conditions, it makes sense to pattern accelera...

The Big Payback on Weathering & Light Stability Testing: Quite often, weathering and light stability testing yields huge returns on investment. Here's our list of the top 10 returns you can get from a relatively modest outlay on testing.Avoid Cat...

Corrosion is caused when a metal is in contact with water and an electrolyte, such as a salt. In this corrosive environment, metals react to form metal oxides. Except for noble metals such as gold, silver, and platinum, all metals exist as oxides in ...

In Xenon and UV fluorescent accelerated weathering testing, an irradiance setpoint value is incomplete information without reference to the wavelength or wavelength range it represents. There are two classes of irradiance setpoints.Narrowband irradia...

Q-Lab’s accelerated weathering and corrosion testers all have some method(s) for measuring and controlling temperature, including black panel thermometers (BPT) and chamber air temperature (CAT) sensors. Reliable test results depend on accurate calib...