To my knowledge it is - for most objects of not natural history museums -
not the absolute humidity level, but the changes that hurts. E.g. pianos
with wooden constructions survive a wide range of humidity, but crack soon,
when the humidity changes within a day to often. Subtle changes of humidity
(5 % per half day) and a wide range of absolute humidity (30 to 75 %) is
acceptable to most "normal" museum objects like paintings, machinery,
pianos, but of course, not to paperworks, special biological tissues and
plants.
Peter, the Austrian Rebernik
-----------------------------------------------------
"Advice is like snow; the softer it falls, the longer it dwells
upon, and the deeper it sinks into the mind."
--Samuel Coleridge
-----------------------------------------------------
-----Ursprüngliche Nachricht-----
Von: Vallin, Amy <[log in to unmask]>
Newsgroups: bit.listserv.museum-l
An: [log in to unmask] <[log in to unmask]>
Datum: Freitag, 10. September 1999 18:25
Betreff: Re: Humidity in Museums
>To my knowledge acceptable humidity level for artifacts is 40% humidity.
At
>the Science Center we try very hard to keep our collection storage area at
a
>low humidity level. It is not always easy, we are in the Ohio River Valley
>and humidity levels are high. The Kentucky Historical Society just opened
a
>new facility and they might be able to give you more information.
>
>Amy Vallin
>Collections Research Coordinator
>Louisville Science Center
>727 W Main St, Louisville, KY 40202
>502-561-6100 ext. 6568
>
>> ----------
>> From: Chris Woodson
>> Reply To: Museum discussion list
>> Sent: Friday, September 10, 1999 9:17 AM
>> To: [log in to unmask]
>> Subject: Humidity in Museums
>>
>> Hi,
>> I was wondering if anyone out there has experience or knowledge of
>> humidity
>> inside museums. I am currently involved in compiling data regarding the
>> humidity levels in our exhibit hall. We have hygrometers strategically
>> placed throughout the building and I have been developing a spreadsheet
>> with
>> the accumulated data. What I am wondering is, what humidity level is
>> considered acceptable in a museum environment?
>>
>> Thanks,
>> Chris Woodson
>> Roanoke Island Festival Park
>> Manteo, NC
>>
>> =========================================================
>> Important Subscriber Information:
>>
>> The Museum-L FAQ file is located at
>> http://www.finalchapter.com/museum-l-faq/ museum-l.html. You may obtain
>> detailed information about the listserv commands by sending a one line
>> e-mail message to [log in to unmask] The body of the message
>> should read "help" (without the quotes).
>>
>> If you decide to leave Museum-L, please send a one line e-mail message to
>> [log in to unmask] The body of the message should read
"Signoff
>> Museum-L" (without the quotes).
>>
>
>=========================================================
>Important Subscriber Information:
>
>The Museum-L FAQ file is located at
http://www.finalchapter.com/museum-l-faq/ museum-l.html. You may obtain
detailed information about the listserv commands by sending a one line
e-mail message to [log in to unmask] The body of the message
should read "help" (without the quotes).
>
>If you decide to leave Museum-L, please send a one line e-mail message to
>[log in to unmask] The body of the message should read "Signoff
>Museum-L" (without the quotes).
>
=========================================================
Important Subscriber Information:
The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ museum-l.html. You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] The body of the message should read "help" (without the quotes).
If you decide to leave Museum-L, please send a one line e-mail message to
[log in to unmask] The body of the message should read "Signoff
Museum-L" (without the quotes).
|