Freezers for storing acetate

I would like to hear from organizations that are currently using
large, purpose built freezers for storing their colour and acetate
film material.

The National Archives of Australia is thinking of constructing a
freezer facility for our collection, but there are a few basic
work-a-day issues we would like more information on.

I have several questions:

    1.  Do you have RH control on the freezer, and is it expensive to
        maintain? (What are the dynamics of RH in a frozen space?)

    2.  If you don't have RH control, do you vacuum pack or double
        bag the films?

    3.  Do you bag just the film reel or the whole can?

    4.  At what T and RH do you do the bagging?

I realize that once a film is in the freezer, it theoretically
shouldn't be taken out, but we all know they are from time to time,
so--

    5.  Do you have automated acclimatization, and what T and RH
        ranges do you use for acclimatization?

    6.  Do you acclimatize going back into storage as well as coming
        out?

    7.  If you use a passive system, is it just a modified cooler,
        or something purpose built?

Cheryl Jackson
Acting Preventive Conservator
Records Operations and Preservation
National Archives of Australia
PO Box 7425
Canberra Business Centre ACT 2610
+61 2 62123422
Fax: +61 2 62123469


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                  Conservation DistList Instance 21:14
                   Distributed: Tuesday, July 3, 2007
                       Message Id: cdl-21-14-019
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