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Subject: LightCheck strips

LightCheck strips

From: Jerry Shiner <jshiner>
Date: Thursday, July 22, 2004
Keepsafe Systems is now distributing LightCheck products to North
America. LightCheck strips are easy to use indicators for monitoring
the light environment; they provide a simple way to determine the
cumulative illumination that a light-sensitive object has been
exposed to.

The color of a LightCheck strip will gradually change as it absorbs
light. An estimate of the amount of light absorbed by the strip is
determined by comparing the progressive variation in the color of
the strip to a color scale.

LightCheck strips are far more sensitive than Blue Wool Standard #1:
LCU type strips are used for exposure spans up to 100 klux hours,
and LCS type strips are used for exposure spans up to 350 klux hours
(LCS type strips are *not* currently available).

LightCheck is a product of a European Commission funded project: "A
light dosimeter for monitoring cultural heritage--development,
testing and transfer to market" (see <URL:>)

The indicator strips are packaged in boxes of 5, including a color
comparison chart. For more information on these materials, please
visit: <URL:>, or email Jerry Shiner at
info [at] keepsafe__ca

Jerry Shiner
Keepsafe Systems

                  Conservation DistList Instance 18:10
                 Distributed: Thursday, August 5, 2004
                       Message Id: cdl-18-10-010
Received on Thursday, 22 July, 2004

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