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LIGHT FASTNESSTESTER |
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This is a simple and relatively inexpensive instrument for evaluating the fastness to light of colored materials. The standard fading lamp is mercury tungsten spectrum, which is rich in red with the mercury spectrum, modified by fluorescent phosphor, Results of exposure to MBTL lamp correlate very well with both xenon arc and day light. |
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Caption describing picture or graphic. |
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WATCH THE DIFFERANCE |
