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Blue Wools & Humidity Test Materials light fastness test fabric
  • Blue Wools & Humidity Test Materials light fastness test fabric

    Standard fabrics for light fastness, blue wool cloth NO.1-NO.8 series products are dyed wool fabrics with special blue dyes, providing blue wool with a range from very low light fastness to extremely high light fastness. They form an ordinal series from 1 to 8, with 1 representing the lowest light fastness to 8 representing the highest light fastness. This product can be used to measure the color change of the gray scale to classify the fabric, which is related to the performance during use. Used in ISO 105 B series tests

    • Humidity control fabric

      This is an azo dyed cotton fabric with specific fading characteristics that can vary with the amount of relative humidity. Used as a calibration tool for light fastness testing. When the humidity of the light fastness test equipment is accurately set, it will fade at the same rate as the light fastness standard No. 5.

    • Standards compliant

      ISO 105B

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