Storing LightCheck cumulative exposure indicators

We have recently received a number of requests for information on
the optimum storage conditions for LightCheck Cumulative Exposure
Indicators. The manufacturer has not completed thorough testing of
the effects of the environment on the product, but preliminary tests
did indicate that storage at high heat (near 100 deg C) has a
noticeable effect on the LCU strips, with a lesser effect noted on
the LCS strips.

The manufacturer has no reason to believe that storage in a
refrigerator at temperatures above freezing could be of concern.
However, they point out that storage below the freezing point should
be avoided, as it could affect the resin medium.

Storage at humidity and temperature levels normally found in a
museum are not expected to cause noticeable changes in the
performance of the strips.

Further information regarding the performance, history, and
availability of the LightCheck Cumulative Exposure Indicator Strips
is at <URL:http://www.keepsafe.ca>. The product will be available at
our booth at the AIC meeting in Minneapolis

Jerry Shiner
Keepsafe Systems / Microclimate Technologies International


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                  Conservation DistList Instance 18:54
                   Distributed: Friday, May 20, 2005
                       Message Id: cdl-18-54-002
                                  ***