Thanks much. It helps a lot. On Jul 13, 2012, at 5:31 PM, "Henry Bellamy" <[email protected]> wrote:
> liquid N2 expands about 600 fold to RT gas. The minimum O2 concentration is > 19% (per OSHA I think) so if the amount of vaporized N2 is greater than 2% > of the cold room volume you could have a problem. One has to account for > the possibility that the Dewar will break or be tipped over and all the N2 > will be vaporized at once. > HTH > Henry Bellamy
