Hygrothermograph placement

I am a student enrolled in Art Conservation at Sir Sandford Fleming
College, Peterborough, Ontario.  I am presently at the Art Gallery
of Ontario, Toronto, in my third-year Internship.

I am researching a project which involves the testing of 10 of the
67 exhibit and storage spaces that the Conservation Department
monitors with Isuzu recording hygrothermographs. The purpose is to
determine the optimal position for a hygrothermograph in a space, so
that its "representative climate" is more accurately monitored.

My research has uncovered many references to the operation of
hygrothermographs and their tendency to drift, but I have been
unable to find sources dealing with testing as a means of
determining "representative climate", or what the best position is
for a machine.  What criteria have conservators in other
institutions used to position their machines? Could anyone offer
some advice, or else guide me to relevant publications or articles?

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                  Conservation DistList Instance 10:67
                 Distributed: Monday, January 27, 1997
                       Message Id: cdl-10-67-013
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