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Learn More About Weather Ometer

    Light fastness - the light of the visible light of the human eye forms only a very small part of the radiation, including x-rays, microwaves and radio waves. The shorter the wavelength, the greater the penetration and, in general, more destructive. The ultraviolet light of the human eye in short wavelength and long wavelength is part of the visible spectrum. Ultraviolet (UV) radiation, which causes discoloration and degradation, is by no means the only reason. Visible light also plays a part, and can be more destructive and relatively short wavelengths of ultraviolet light.
   

   xenon lamp Test Chamber  is commonly used to determine the resistance of a color project's artificial light source, close to the natural daylight through the glass, but a higher intensity. It applies to all types of materials.


Xenon Test Chamber/Weather Ometer Test principle
     In our light fastness test, the sample was exposed to a strong artificial light, produced by a xenon lamp. Light passes through a series of filters to ensure that its spectrum (wavelength composition) is closely matched to natural daylight.Through the glass. Test atmosphere humidity and temperature control.

    A small sample of material, plus a series of eight blue wool standard fabrics (refer to 1-8, see the following paragraphs), and exposed to high intensity light. Double exposure time is used to determine whether or not the discoloration is progressing.Steady, or initially at different rates from long exposure. The tests included an evaluation during the test and the last time. An evaluation of the fading of the faded sample of the blue wool standard fabric was performed. Each sample is assigned a number based on the blue wool standard, which shows the number of changes in the color change.

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