Re: [GBW] Chloramine-T

[Greg Schmitz <gws1@xxxxxxxxxxxx>]

Try a CoOL search:

http://palimpsest.stanford.edu/search.html

-greg schmitz




On Thu, 8 Nov 2007, Steven Hales wrote:

==>some deleted: snip%<
> I quite agree with Peter's comments, and would welcome more such discussion. 
> In particular, I would like to ask those more informed than I am about what 
> scientific literature there is on Chloramine-T. If there really are long-term 
> negative effects, there should be some literature. I did some searching 
> myself (using Worldcat, Google Scholar, Wiley InterScience database, and the 
> Guild of Book Workers site) and came up largely empty-handed. It is easy to 
> find older papers/books recommending Chloramine-T, but not much that is 
> critical. For example, this is the sum total of what Science for 
> Conservators, vol. 2: Cleaning (Routledge, 1992) has to say on the subject:
>
> "For awhile it was thought that chloramine-T residues were harmless, but now 
> it is considered advisable to wash them out too, using either water or 
> alcohol." (p. 113).
>
> I also found an older article by Katherine G. Eirk, "An Experimental 
> Evaluation of Accepted Methods for Removing Spots and Stains from Works of 
> Art on Paper," Bulletin of the American Group. International Institute for 
> Conservation of Historic and Artistic Works, vol. 12, no. 2 (April, 1972) pp. 
> 82-87. The only negative thing in it I could find about Chloramine-T was that 
> a one-hour immersion in lowered the bursting strength of aged paper, although 
> not drastically. This seems to be due to loss of sizing.
>
> So far this is not much of an indictment. I assume there is a literature that 
> examines Chloramine-T while controlling for variables such as immersion time, 
> solution strength, post-bleach rinsing conditions, paper age, burst strength 
> after resizing, Chloramine-T residue after rinsing, as well as longitudinal 
> studies of paper that was washed with Chloramine-T 30 or 40 years ago. 
> Microscopy of the paper fibers would also be helpful. If anyone could direct 
> me to such literature I would be grateful.
>
> I, for one, am certainly aware of lacunas in my bookbinding education. I just 
> want to be confident that I am filling the holes with knowledge and not 
> anecdotes.
>
> Thanks,
> Steve
>
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