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Accelerated weathering test (artificial weathering with UV fluorescent lamps) according to DIN EN ISO 16474-3, DIN EN ISO 4892-3, GSB AL 631-7 and GSB ST 663-7

In contrast to accelerated weathering with xenon arc lamps, UV fluorescent lamps (UVA-340, UVB-313) are used as a light source. These lead to an even greater acceleration of decomposition processes of organic compounds. A heated water reservoir simulates formation of dew by condensation of water on the sample surface. After exposure to UV light and water condensate in cyclic alternation, the colour and gloss stability of organic and metallic surfaces as well as textiles are tested.

Area of competence


  • ST 663-7
  • AL 631-7
  • DIN EN ISO 4892-3
  • DIN EN ISO 16474-3

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Andreas Eva

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