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Tag Articles : CIE 85

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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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  Irradiance Spectra in Weathering Testing – A New Guide

  March 30, 2023 | Andreas Riedl

  Standards

  Solar radiation is the primary weather factor in material degradation, and accurately simulating the solar spectrum is critical for realistic and precise laboratory weathering testing. The photons capable of initiating photochemical reactions are particularly important, and their energy increases as the radiation's wavelength decreases. Thus, the UV cut-on plays a significant role in each light source used for laboratory weathering.

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  A New Standard Sun CIE 241 & CIE H1

  April 25, 2022 | Dr. Florian Feil

  Standards

  The spectrum and intensity of the sun (or the spectral irradiance of solar radiation) is influenced by the atmosphere and depends on location and time.

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  How Sun Came Into Standards

  April 4, 2022 | Andreas Riedl

  Standards

  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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  Top 10 Xenon Weathering Standards You Should Know

  September 28, 2021 | Andreas Riedl

  Standards

  The Atlas Standards Database lists more than 6000 documents from about 600 Standards Developing Organizations (SDO’s). If we exclude duplicate test methods published in different norms and obsolete versions, we still end up with several hundred different weathering and lightfastness test methods.

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