Color Fastness to Light ( Tests ISO-B01 - B08)

The purpose of this test is to determine how much the color will fade when exposed to a known light source. The proper test method is AATCC Test Method 16. Option A uses a Carbon Arc light source while Option E uses the more popular Xenon light source. The option used will depend on the equipment available. The test duration will be 10 AATCC fade units minimum for both colors and whites unless otherwise specified. Ten AATCC fade units are the equivalent to 2.5 to 3 continuous twenty four hour days of direct sunlight while 20 AATCC fade units are equivalent to 5-6 days of direct sunlight.

The evaluation will be done as described in the test method with the exception of whites. Whites will be evaluated with the AATCC Gray Scale for Staining because the issue is more often yellowing of the white color.

ISO 105-B01-1999 Textiles - Tests for colour fastness - Part B01: Colour fastness to light: Daylight ISO105-B01 ISO105-B01 ISO105-B01 Read in detail

ISO 105-B02-1999 Textiles - Tests for colour fastness - Part B02: Colour fastness to artificial light: Xenon arc fading lamp test  .
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ISO 105-B03 -1997Textiles; tests for colour fastness; part B03: colour fastness to weathering: outdoor exposure.
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ISO 105-B04-1997 Textiles - Tests for colour fastness - Part B04: Colour fastness to artificial weathering.Xenon arc fading lamp test.
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ISO 105-B05-1996 Textiles - Tests for colour fastness - Part B05: Detection and assesment of photochromism .
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ISO 105-B06-1999 Textiles - Tests for colour fastness - Part B06: Colour fastness and ageing to artificial light at high temperature.
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ISO 105-B07:2009 specifies a method for determining the resistance of the colour of textiles, of all kinds and in all forms, to the combined effect of wetting with acid or alkaline artificial perspiration solutions and an artificial light source representing natural daylight (D65).

ISO 105-B08:1999 Textiles -- Tests for colour fastness -- Part B08: Quality control of blue wool reference materials 1 to 7 .
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A small instrument for testing color fastness
Weather O meter
Definition: The apparatus in which specimen materials can be subjected to artificial and accelerated weathering tests which simulate natural weathering. Controlled cycles of ultraviolet radiation, light, salt, electric arcs, water spray, and heating elements are used to simulate the natural conditions of sun, rain and temperature changes.