From: Greg Schmitz (gws1@columbia.edu)
Date: 10/02/02-01:15:42 PM Z
Actually, I believe the primary reason to avoid changes in temperature
and humidity is physical. In conservation these changes are often
referred to as "cycling." Rapid changes in humidity and/or
temperature can cause materials to crack, separate from backing, etc.
Rapid cycling, will over time cause the materials to deteriorate
faster than if they had not been cycled or had been cycled slowly.
This is the reason materials that are removed from cold storage are
brought up to temperature slowly rather than quickly.
-greg
On Wed, 2 Oct 2002, Liam Lawless wrote:
> As regards processed materials, I think the main reason high/fluctuating
> temperature &/or humidity are to be avoided is because they accelerate
> degradation due to chemical causes (oxidation from environmental
> contaminants, sulphuration due to improper washing, etc.)
>
>
>
> Liam
>
> -----Original Message-----
> From: Judy Seigel [mailto:jseigel@panix.com]
> Sent: 02 October 2002 04:34
> To: the alt photo gurus
> Cc: jneuhauser@silverlink.net
> Subject: Re: storing prints?
>
>
>
>
> On Tue, 1 Oct 2002, epona wrote:
>
> > Thanks for your response. I will definitely order some boxes from Light
> > Impressions. Do you have any opinion on which is the lesser of two
> evils -
> > attic or basement? The basement seems relatively dry and mildew free, but
> > we've also had a very dry season up here in New England.
>
>
> According to "the literature" two criteria in storing unexposed silver
> gelatin material are: temperature (should be cool as possible) and change
> of temperature (should be as little as possible). Probably cellar is
> better on both counts -- unless attic exceptionally well insulated -- that
> is if these factors affect exposed material as they do unexposed. My
> guess is they would.
>
> J.
>
>
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