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High Irradiance Weathering TESTING HIGH HIGH IRRADIANCE The Track to Faster Results

Why Perform High Irradiance Testing? High irradiance testing has two key advantages, resulting in several potential benefits. Shorter test times for an equivalent radiant exposure • Larger sample turnover • Lower testing costs • Faster time to market Longer outdoor equivalent (in terms of radiant exposure) for a given test time • Earl ier failure detection • Reduced risk of extrapolation • important for long-living durable products What is High Irradiance Testing? • Testing at full spectrum solar irradiance levels that are multiples (e.g. 2X, 3X, 5X) of standard reference daylight. •...

Validation Does testing at higher irradiances and shorter times produce the same results as does testing at lower irradiances for longer times? l es, if the photochemical degradation reactions obey the Y reciprocity principle. l Reciprocity means that the same results are obtained from an equivalent radiant exposure, regardless of the irradiance used to obtain it. l Determining reciprocity requires a correlation study at different irradiance levels. l Reciprocity has to be validated for each material and each application. Example of High Irradiance Correlation Study This example...

Superior air-cooled and water-cooled xenon-arc instruments enable testing at up to 3-sun irradiance levels. Rotating-rack technology optimizes uniformity of irradiance and temperature at the sample plane. These instruments are the ideal solutions for testing various materials including plastics, coatings, building materials, automotive parts, paints, and textiles. Today, only companies that can quickly introduce superior products to the market are able to survive a globally competitive environment. Accelerated and accurate weathering testing is a critical component in product development...

SEC 3 SUN The SEC 3 SUN test chamber is designed for high irradiance solar simulation testing. it combines superior temperature and humidity control with adjustable solar irradiation range from 1- to 3-sun level. • irradiance range 1000 to 3000 W/m2 (300 - 3000 nm) • 1.6 x 3.0 m2 exposure area • 14 m3 chamber size • 9 x 4000 W metal halide light source • -20°C to +100°C ±1°C temperature operating range with light • 20 - 80 % RH ± 5% humidity operating range with light SEC 10 SUN The SEC 10 SUN instrument is capable of very high irradiance solar simulation testing. Moving four MHG luminaries...

Altazimuth Tracking Fresnel Reflectors: EMMA®/EMMAQUA® EMMAQUA® employs 10 highly-reflective mirrors and a sun-tracking system to concentrate sunlight onto test specimens. The result is natural weathering testing in a fraction of the time, with excellent correlation to end-use conditions. DSET Laboratories pioneered the development of the EMMAQUA® outdoor accelerated tests in the late 1950's. The method employs Fresnel reflecting solar concentrator systems that use ten flat mirrors to uniformly focus natural sunlight onto specimens mounted in the target plane. High quality, first-surface...

Xenon Weathering Standards The table below lists selected standards for laboratory xenon weathering, which allow use of high irradiance up to 3-sun levels. For details, refer to the individual standards. Test methods which are proprietary to individual companies and which also specify high irradiance testing are not listed here.

Global Support, Weathering Exposure Sites & Laboratories ■ Corporate Offices ■ Chicago, Illinois ■ Elancourt, France ■ Leicester, United Kingdom Linsengericht, Germany ■ Bangelore, india ■ Sao Paulo, Brazil ■ Shanghai, China • Outdoor Exposure Sites & Laboratories Prescott, Arizona • Phoenix, Arizona • Chicago, Illinois • Medina, Ohio Keys, Florida • Jacksonville, Florida Miami, • Florida Alberta, Michigan • Ottawa, Canada Leicester, United Kingdom • Hoek van Holland, The Netherlands • Sanary, France • Morfelden-Walldorf, Germany Novorossiysk, Russia • Chennai, India • Singapore (Changi...