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This is a simple question, but unfortunately there is no simple answer. It is theoretically impossible to have a single...

Calibration vs. Adjustment

by Andy Francis on Aug 12, 2022 9:00:00 AM

Q-Lab strongly recommends regular calibration of irradiance sensors, black panel and chamber air temperature sensors, and...

What Part of Standards Are Mandatory?

by Bill Tobin on Aug 5, 2022 9:00:00 AM

 

ISO and ASTM are the two major international standards bodies for weathering and corrosion testing. Although they use...

A very common and fundamental question to ask when beginning a weathering and/or corrosion testing program: “What kind of...

QUV and Q-SUN accelerated weathering testers require the use of special calibration radiometers. The CR10 and UC10 are used...

Q-Lab includes an air preconditioner as a standard accessory with every Q-FOG CRH tester. Not all manufacturers do this, so...

This very common question is often well-meaning but can at times limit one’s understanding of weathering of materials. It’s...

What is Dew Point?

by Andy Francis on Nov 6, 2020 5:11:53 PM

The dew point is the temperature at which dew (condensation) forms and is a measure of atmospheric moisture. It is the...

The most common Gravelometer test method is SAE J400, which has existed since 1968 and has not changed much over time....