UV lamps

This is a response to Flavia Philp's description of testing
ultraviolet lights with the blue wool standards.  I seem to remember
being told (possibly by Bob Feller) that they were formulated
specifically not to be sensitive to UV, only visible.  I think there
has some debate and testing since about the extent to which they are
completely insensitive to UV, but I don't think that using them to
compare the fading effects of UV to visible light is going to
produce any kind of reliable results.

B. Appelbaum

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                  Conservation DistList Instance 11:29
               Distributed: Thursday, September 25, 1997
                       Message Id: cdl-11-29-002
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