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Walter, Yes. We have the P-2000 which alarms at 7%
moisture. The important requirement is identical monitor volumes so you can
compare stations and watch relative responses. I chose a multivolume set with rag-derived,
machine made paper. (Dickens, 1840) You can’t just cherry-pick because
there is such drastic difference in response of different paper types. Another aspect is that the recording need
is different with, say, only 1 reading per week max needed. The response of
books is slow and probably different in pick-up and drying rate. From: Cybulski, Walter
(NIH/NLM) [E] [mailto:Cybulskw@xxxxxxxxxxxxxxxx] Is guidance available regarding the use
of a paper moisture content meter in collection areas that have been involved
in water disasters? Are you using the Delmhorst P-2000
digital read-out meter? Have you contacted IPI? - Walter Cybulski From: I would just like to mention a few issues with preservation monitoring
that we have come to appreciate. In the aftermath of flooding here we realized
that we have the only record of building interior response to the power
failures and to the emergency drying operations. This data will be of interest
to all risk management types on campus. But I also regret that this documentation relates only to the
un-circulating air in these dark buildings. What we really need is measures of
moisture absorption and aspiration in the collections themselves. Again such a
record would be of great interest generally. For example we had damage of
instruments and furniture in the Music building which I attribute not to flood
water humidification but to recovery drying. At present I have located identical 19th c. books at various
PEM stations and watch the paper response with a Delmhorst paper moisture
content meter. I would be very interested to hear of any recording version of
such an instrument that could be integrated with a Climate Notebook type
interface. Gary Frost From: Paula De Stefano
[mailto:pd3@xxxxxxx] Hi all, I would appreciate hearing from anyone
who has intake policy or procedures for materials entering their
library’s offsite storage facility that protect against contaminates,
such as mold and insects, being introduced into the facility, or any policies
regarding cleanliness of materials. Also, I’m interested in what type
of environmental monitoring people are using. Dataloggers? If so, what type,
what strategy was used to place them and how often are they checked? Are you
satisfied with them? Thank you! Paula ________________________________ Paula De Stefano (destefano@xxxxxxx) Head, Preservation
Department Barbara Goldsmith
Preservation &
Conservation Department Phone: 212/998-2563 Fax: 212/995-4566 |