Our conservators use Nitrous Oxide rather than smoke to measure Air
Exchange Rates.  See
http://www.cwaller.de/vitrinentest/calver2005_air_echange.pdf for more
information.  
--
Trevor Reynolds
Collections Registrar
English Heritage 36 Hospital Fields Road, York, YO10 4DZ 
Telephone +44 (0) 1904 610322 ext 24

-----Original Message-----
From: Museum discussion list [mailto:[log in to unmask]] On
Behalf Of Shyra
Sent: 06 July 2008 21:10
To: [log in to unmask]
Subject: Smoke Test

Help! Does anyone have experience conducting a smoke (or some type of 
airborne particulate) test as a means to determine the air exchange
within a 
space (a display case is what we're dealing with)? If so, where might
one find 
materials for such a test? Or what about any other techniques used to 
measure case air exchange? Any tips are much appreciated! Thank you!

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