> >In my experience, except for very small laboratories, or those with very low exhaust rates (like SEM labs) oxygen monitoring is not required unless the owners try to stack a 10 day supply of cryogens on hand at all times.
Or if they are storing dry ice or liquid nitrogen in a cold room, assuming that that location will extend the life of their stockpile of those items. (Fresh air in cold rooms is 0%.) We have found 16% O2 levels in those situations.
Ralph Stuart, CIH, CCHO
Environmental Safety Manager
Keene State College
For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org
Follow us on Twitter **At_Symbol_Here**acsdchas
Previous post | Top of Page | Next post