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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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  • Atlas Weathering Blog Reciprocity Cover UAWS
    The Principle of Reciprocity – Its Value as a Tool in Weathering

    January 24, 2022 | Oscar Cordo

    Education

    In our niche weathering industry, there are some who believe that reciprocity is a misguided notion. Well, the principle of reciprocity is a valid scientific premise, that when observed, allows researchers to reduce test times by increasing the irradiance of the accelerated weathering test method used. If one wishes to reduce their test time, testing if reciprocity is observed must be performed before making predictions about test duration at higher irradiances.

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