[NHCOLL-L:20] ammonium chloride sublimation

[Julia Golden]

Dear Colleagues,

I have a question about ventilation for an ammonium chloride sublimation
station.  We are thinking about moving the current one to another area with
a hood but I wonder about specifications for venting.  Does any one know of
published specs or have current environmental regulations (for USA)? 

As always, I thank you all for your help in advance,
........Julie
Julia Golden
Curator of Paleontologic Collections
Department of Geology			tel: 319-335-1822
121 Trowbridge Hall			fax: 319-335-1821
University of Iowa 			e-mail: j-golden at uiowa.edu
Iowa City, IA  52242-1379