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Cold storage in Australia
Information about cool storage facilities in Australia is
presented in Appendix 1. It is intended that the information provided will
assist institutions in setting up cooperative storage arrangements with
others. The storage space required for different formats can be calculated
using storage density data. In Cost-Benefit Analysis for B/W Acetate:
Cool/Cold Storage vs Duplication (available online at
http://palimpsest.stanford.edu/byorg/abbey/an/an19/an19-4/an19-410.html
) Puglia provides information on storage densities for the different formats:
Table 1: Storage densities of various
formats
| |
|
Imperial
|
Metric
|
| Still photos
|
4 x 5 |
0.0009 cu. ft/neg |
25.4 cu. cm./negative
|
| |
5 x 7 |
0.003 cu. ft./neg |
84.9 cu. cm./negative
|
| 8 x 10 |
0.003 cu ft./neg |
84.9 cu. cm./negative
|
|
Microfilm |
16 mm, 100 roll
|
0.02 cu.ft./roll |
566.4 cu. cm./roll |
| 35 mm |
0.04 cu.ft./roll |
1132.8 cu. cm./roll |
| Motion
Pictures |
16 mm, 1000 roll
|
0.07 cu.ft./roll |
1982.4 cu. cm./roll |
| 35 mm, 1000 roll
|
0.14 cu.ft./roll |
3964.8 cu. cm./roll |
| Aerial
|
5, 200 roll
|
0.06 cu.ft./roll |
1692.2 cu. cm./roll |
| 5, 500 roll
|
0.16 cu.ft./roll |
4531.2 cu. cm./roll |
| 9.5, 500 roll
|
0.33 cu.ft./roll |
9345.6 cu. cm./roll |
| X-ray
|
14 x 17 |
0.006 cu.ft./roll |
169.9 cu. cm./roll |
While data collected in the Cellulose Acetate Survey
(2000)11 does not allow us to determine if there is a shortage of
cold storage space in Australia, we do know that:
- In libraries and archives, acetate competes with
polyester, as well as other materials, for cold storage space. Collections on
polyester are growing, and will continue to do so.
- Copying projects are unlikely to significantly decrease
the total cold storage space required in Australia. This is because many
institutions are wary of discarding original material, and want to keep it,
just in case. In view of the possibility of unforeseen problems in
terms of image quality or deterioration of the copy being discovered years
later, this may be prudent. Materials being retained because of their intrinsic
value will also require cold storage space.
- Deteriorated acetate cannot be stored alongside other
materials without being sealed, and packaging large amounts of material is
costly.
- There are no large cold stores in Australia today which
are cold enough to arrest further decay in materials which are already
deteriorated.
- Low temperature (freezer) storage will substantially
increase the stability of cellulose triacetate base.
(11) Available from
http://www.nla.gov.au/anica/about-anica.html
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