At 08:18 23/06/98 -0400, you wrote:
>We recently looked at a Whatman N2 generator. The particular system we
>looked at provides 99.99% purity, which was the quality recommended by our
>instrument manufacturer. The estimated cost of the generator is $6,800.
I use Ar as a purge gas. Is this economically feasible if you consider that
extra hardware and consumables are required to produce N2 just for a low
consumption purge. Liquid argon tank will loose gas if you do not use it.
eg pressure builds up overnight and if not used it will vent to atmosphere.
It depends on your tank and the number of users, but $6000 cost of a N2
generator plus ongoing maintenance and consumables (if any) will get you a
lot of Ar gas.
Environmental Science Division
Australian Nuclear Science Organisation
PMB 1 Menai, NSW 2234
email: [log in to unmask]