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Category Articles : Education

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  • Weathering Basics V – Solar Radiation

    June 30, 2025 | Andreas Riedl

    Education

    Heat, water, and solar radiation are the primary weather factors. To simulate solar radiation in weathering instruments through properly filtered light sources, two parameters are key

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  • 5 Reasons for Accelerated Weathering Testing

    June 16, 2025 | Dr. Oliver D Rahaeuser

    Education

    Atlas mission is to enable our customers to accelerate their expertise in developing world-class products. A key aspect: best-in-class equipment for understanding with confidence how materials perform in worst case environments. If you have never tried weathering testing, here are 5 good reasons to prioritize accelerated weathering testing for your products.

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  • Weathering Basics IV – Weather and Climate

    April 1, 2025 | Andreas Riedl

    Education

    Weathering is the adverse response of a material or product to the factors of weather, often causing unwanted and premature product failures. Consumers spend billions of dollars per year to maintain products that inevitably degrade and to replace products that fail.

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  • Weathering Basics III - Precision

    February 28, 2025 | Andreas Riedl

    Education

    In Part II of our blog post series on basic weathering concepts, we explored the correlation between different tests. Now, we will shift our focus to the correlation between multiple runs of the same test method.

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  • Weathering Basics II – Correlation and Relevance

    January 15, 2025 | Andreas Riedl

    Education

    In weathering testing, correlation usually measures how well an accelerated test predicts a material's property change in “real-world” environmental conditions over time. But correlation without relevance is meaningless: in addition to the macroscopic property change, the degradation mechanism on molecular level needs to be the same in both tests

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  • Weathering Basics I – Acceleration

    December 30, 2024 | Andreas Riedl

    Education

    Acceleration factors cannot be calculated. They must be measured.

    Acceleration, correlation, causality, reciprocity – these are important concepts used in weathering testing. To select the right test method, understand limitations and options, and avoid costly mistakes one should know what these basic principles mean. In a new series of blog posts, the most important technical terms are explained and further information material is recommended.

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  • New Video Tutorials for Weathering Instruments

    February 14, 2024 | Andreas Riedl

    Education

    Video tutorials offer valuable, quick, and straightforward guidance. To enhance your experience, Atlas provides clips that provide step-by-step instructions for operating xenon instruments, changing lamps, filters, and sensor batteries, and programming tests. Excitingly, we have recently introduced six new tutorials for Xenotest weathering instruments, complementing our existing collection of SUNTEST and Ci Weather-Ometer video tutorials.

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  • The Invention of Laboratory Accelerated Weathering

    December 27, 2023 | Andreas Riedl

    Education

    A century ago, Thomas Alva Edison's light bulbs began to replace Atlas carbon-arc lighting systems. But during World War I, the German export blockade created new demand for Atlas lamps: not for lighting, but for testing materials. Instead of going out of business, Atlas adapted by “inventing” laboratory weathering.

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  • How to Predict the Service Life of Your Product?

    August 15, 2023 | Andreas Riedl

    Education

    Sunlight, heat, and water induce ageing processes in any material – called weather ageing, environmental ageing, or just “weathering”. Irreversible chemical and physical changes first appear on microscopic level and accumulate over time into unwanted macroscopic changes, e.g. discoloration, yellowing, flaking, or loss of tensile strength. If a critical property exeeds a certain “pass-fail” criterium, the end of service life is reached.

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  • Video Tutorials for Weathering Instruments

    February 8, 2023 | Andreas Riedl

    Education

    We live in an animated world. Before we consult phone book-sized manuals, we search the internet for video clips that answer our questions. Atlas Video Tutorials address this need for laboratory weathering instruments.

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