Archived posting to the Leica Users Group, 2010/03/21

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Subject: [Leica] FujiFilm discontinues some films.....
From: pasvorn at boonmark.net (Pasvorn Boonmark)
Date: Sun, 21 Mar 2010 12:56:37 -0700
References: <mailman.1201.1268923738.1001.lug@leica-users.org> <33F1358C-9DB1-4A41-AF8E-7D0AF94CC079@gmail.com> <ee8fa51c1003201733o27a50b84qe8891837922ad554@mail.gmail.com>

Marty,

Thank you very much for the technical information.  I was wondering what the
PFOS is.

-Pasvorn

On Sat, Mar 20, 2010 at 5:33 PM, Marty Deveney <benedenia at gmail.com> 
wrote:

> These are discontinuations by Fuji in Japan.  These films are gone.
> So, notably, is 120 format Neopan 400; which was discontinued because
> it contained perfluorooctanesulfonic acid (PFOS) as a surfactant and
> anti-static agent.  PFOS was added to Annex B of the Stockholm
> Convention on persistent organic pollutants (POPs) in May 2009:
> http://chm.pops.int/Convention/Press...S/Default.aspx - Japan has just
> passed legislation to take up these new controls.  Hence Fuji can't
> continue production of the current formulation.  Communication has
> been poor and Fuji haven't said if there will be a new formulation.
>
> PFOS is a powerful immunosuppressant, carcinogen and persists and
> concentreates in biological systems. I'd have considered avoiding
> using Neopan 400 120 had I known that the film contained PFOS.  PFOS
> can pass across skin; I am glad I've always worn gloves when
> processing. It also shows that films are very complex chemically and
> contain unexpected components.
>
> Marty
>
> _______________________________________________
>


In reply to: Message from neilbeddoe at googlemail.com (Neil Beddoe) ([Leica] FujiFilm discontinues some films.....)
Message from benedenia at gmail.com (Marty Deveney) ([Leica] FujiFilm discontinues some films.....)