fadeometer
An accelerated aging testing device which exposes
samples of colored materials or coatings to a
carbon arc to determine their resistance to
fading. The arc emits an intense actinic light
which in a matter of hours approximates the
destructive effect of a much longer period of
ordinary daylight. Although it does not exactly
duplicate the effect of prolonged exposure to
natural light, it is still an effective indicator
of the degree of light stability that can be
expected of a material, and of the comparative
resistance to fading of a number of samples. See
also: ACCELERATED
AGING TEST . (72
, 233 )
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