Re: [Leica] preservation of photographic materials

[S Dimitrov <sld@earthlink.net>]

I believe we can only use existing stock with Halon, somewhat akin to
Freon. It's very costly, but safe on negs and prints. I hope that I
never have the opportunity to use it.

Slobodan

Henning Wulff wrote:
> 
> At 9:54 AM -0800 3/8/01, S Dimitrov wrote:
> >I have to keep a fire extinguisher in my darkroom. I became concerned
> >that if there was a fire and I used purple-K as to what would be the
> >damage to my materials. I asked the Getty's conservation dept. about it
> >and never received a concrete answer. They do however have a specialist
> >there on the grounds that is an expert on fire related damages, which
> >includes the use of fire fighting agents.
> >I'm thinking of switching to Halon or CO2, to keep things simple.
> >
> >Slobodan Dimitrov
> >
> >
> >Erminia R Quinn wrote:
> >>
> >>  Hello again:
> >>
> >>  Here are a couple of sources of info on preservation of photographic
> >>  materials:
> >>
> >>  http://lcweb.loc.gov/preserv/careothr.html
> >>
> >>  and
> >>
> >>  http://lcweb.loc.gov/preserv/othresou.html
> >>
> >>  Both libraries and museums have been dealing with the nightmare of trying to
> >>  preserve collections for some time now, and many of them are excellant
> >>  sources of info on this issue.  Since the general public increasingly want
> >>  to buy only "archival quality" prints, it might be worth your while to check
> >>  out these sources.  (They're free, ya know.)
> >>
> >>  xoxo,
> >>  Erminia
> >  > (former special collections cataloger)
> 
> Halon is not legal anymore here (Canada) due to the flourocarbons.
> The last time I did a Halon installation in a computer room was over
> 10 years ago. For a few years it was still possible to use Halon for
> special applications, but now that has been phased out as well. This
> is all with respect to architectural installations, so there might be
> some exceptions still in the military that I don't know about. That
> seems unlikely in Canada though, as our military probably never got
> around to hearing about Halon in the first place.
> 
> --
>     *            Henning J. Wulff
>    /|\      Wulff Photography & Design
>   /###\   mailto:henningw@archiphoto.com
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