1.1 This test method provides the general
principles and procedures which are
currently in use for determining the colorfastness
to light of textile materials.
The test options described are applicable
to textile materials of all kinds and for
colorants, finishes and treatments applied
to textile materials.
Test options included are:
1—Enclosed Carbon-Arc Lamp, Continuous
Light
2—Enclosed Carbon-Arc Lamp, Alternate Light and Dark
3—Xenon-Arc Lamp, Continuous Light,
Black Panel Option
4—Xenon-Arc Lamp, Alternate Light
and Dark
5—Xenon-Arc Lamp, Continuous Light,
Black Standard Option
6—Daylight Behind Glass
1.2 The use of these test options does
not imply, expressly or otherwise, an accelerated
test for a specific application.
The relationship between any lightfastness
test and the actual exposure in use
must be determined and agreed upon by
the contractual parties.
1.3 This test method contains the following
sections that assist in the use and
implementation of the various options
for determining lightfastness of textile
materials.
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