Christian:

 

When I worked for a municipality, years ago, I know at one time there
was cellulose nitrate-based microforms. And, a cording to the Northeast
Document Conservation Center: there are three broad types of film base
photographic materials: cellulose nitrate, the cellulose acetates, and
polyester. These materials have been used as a support for negatives,
positive transparencies, motion pictures, microfilm, and other
photographic products.  See
www.archives.nysed.gov/a/records/mr_pub15.pdf

 

 

Steven D. Morgan

Records Manager, C.J. Segerstrom & Sons

Costa Mesa, CA

714.438.3228 Phone

714.546.9835 Fax

Information is the currency of democracy. (Thomas Jefferson)

-----Original Message-----
From: Records Management Program [mailto:[log in to unmask]] On
Behalf Of Christian Meinke
Sent: Friday, May 08, 2009 8:25 AM
To: [log in to unmask]
Subject: Nitrate film for Micrographics?

 

We've come across a collection of 16mm microfilm reels dated from 1947
to

1962, that are in a bad state of decay - an extreme case of vinegar

syndrome. Because of the age (some prior to the 1952 discontinuance of

Nitrate film stock), there is concern that some may be nitrite cellulose

based and hence much more hazardous. Any of you folks with a broader

background in micrographics have an easy way to determine if any of the

film stock is nitrate - or even if Nitrate film was ever made for

micrographic purposes? - to me everything is consistent with acetate
film,

but I've never dealt with Nitrate film so that may be ignorance on my
part.

 

Thanks,

 

Christian

 

                           Christian Meinke, CRM

                        Southern California Edison

                          Information Governance

                          (626) 302-7133/PAX 27133

                           Mobile (818) 414-9515

                         [log in to unmask]

 

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