Don't put certain tool handles in with artifacts...acetic acid and butyr...

[COURYHOUSE at aol.com]

You are welcome Ted - -     this is  a  close relative  to   a class 
problem with enigma cipher  machines and the green acetate  filter in the case.  
when the  case was left closed for years on the shelf of an archive  the 
acetic  acid would eat the metal rims of the key tops on this famous ww2 cipher  
machine.  -  there is  strips that  will test   for  the acid in the air.
 
 
In a message dated 1/9/2017 1:15:09 A.M. US Mountain Standard Time,  
Events at QuadVideotapeGroup.com writes:

Ed, that's a good find.

Thanks for posting!


Ted


Ted Langdell
Secretary, Quad Videotape Group
Events at quadvideotapegroup.com
(530 )301-2931

Dictated into and Sent from my iPhone, which is solely responsible  for any 
weird stuff I didn't catch.


On Jan 8, 2017, at 8:08 PM, COURYHOUSE at aol.com wrote:



 
 
Don't put certain tool handles in with   artifacts... acetic acid and 
butyric acid EATS!
 
I found this interesting wondering why some tool handles smelled   odd. - 
Ed Sharpe archivist  for SMECC
 
 "Tool  handles made of Cellulose Acetate Butyrate. A thermoplastic, it 
offers  excellent UV and solvent resistance that cellulose acetate doesn't 
offer.  And it feels in the hand like a natural substance, something that is 
almost  intangible, like a tool that is made by craftsmen, a characteristic 
that a  polyethylene or polypropylene handle does not have. CAB also offers no  
splinters like the older wood handles. It also can be very clear. And when  
that plastic begins to degrade, it releases free acetic acid and butyric  
acid."
 
Read  much much more here->
 
http://dwarmstr.blogspot.com/2013/02/why-toolboxes-and-tool-handles-stink.ht
ml




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