Dear colleagues,

a short heads up for those with collections that contain old fire  
extinguishers:
We probably all know about the beautiful-yet-dangerous fire grenades  
https://collectionsconversations.wordpress.com/2014/09/09/fire-grenades/
However, I wanted to remind you that carbon tetrachloride was used in  
fire extinguishers regularily before the 1980's, especially in devices  
designed for the use in cars. A trigger word might be "tetra" in the  
object name.

I send this reminder because we detected small amounts of this stuff  
during an air measurement in our storage. We had our extinguishers  
professionally emptied a few months ago, but the measurement was taken  
very close to the place this collection is stored, so chances are they  
are still off-gassing.

Best wishes,
Angela

Angela Kipp
Collection Manager
TECHNOSEUM, Mannheim, Germany
www.technoseum.de

Join the Registrar Trek at http://world.museumsprojekte.de/
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Got a chaotic collection? Read "Managing Previously Unmanaged  
Collections":  
https://rowman.com/ISBN/9781442263475/Managing-Previously-Unmanaged-Collections-A-Practical-Guide-for-Museums

This is my personal opinion. My institution can't be held responsible  
for anything I write

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