OverView
The Problem
At
best, a good can protects its contents from the external environment (cans
sometimes even fail at that task). All air–tight cans fail to protect the film
from destructive acidic gases which become trapped inside. These gases attack
both the can and the film, causing corrosion and
deterioration.
The four principle factors that contribute
to photographic deterioration are:
1. Poor
environmental storage conditions
2. The presence of residual photographic
processing chemicals or the use of exhausted processing chemicals
3. Poor
shelving conditions for archival containers
4. And inappropriate handling
that results in unnecessary wear and tear.
These principal factors must
be taken into consideration if the preservation of archives is to be
effective.
A Previous
Solution
The
only prevention for this problem was to periodically open the can to release gas
concentrations, re-spool the film, inspect the film for signs of deterioration
and examine the container for corrosion. Not only is this process labor
intensive and expensive, especially for large collections, it often uncovers
problems too late.
The BST Solution
To address these issues, NFPPI has developed the Breathable
Storage Technology (BST) Canister, a patented non-corrosive container that
provides optimum out-gassing, acid and fire protection for nitrate
film.
While our products are generally directed
toward improving archival storage and preservation, the above principal factors
must be taken into consideration if the preservation of the archives is to be
effective.
