At 05:05 PM 6/7/96 EDT, you wrote:
>
>Hi everyone,
>How are you doing? I'd like to hear any comment on the lab safety.
>We are working on our new NMR labs for a 600 and a 400 MHz
>NMRs. A current proposal of our new labs is to dig a big hole
>(approximate 9x9x9 feet) so that the 600 magnet can sit in the hole.
>A strait aluminum ladder is build for people to go up and down.
>A serious concern I have is the safety. In case of magnet quench,
>the oxygen in the hole will be replaced with helium gas. If that
>happened, the people working with the magnet have no chance to
>escape and could be killed. This situation is quite different from
>that the magnet (at least magnet body) is usually above the ground.
>For the latter case, in events of magnet quench, the room is usually
>large enough so that there is still enough oxygen in the bottom half
>of the room. I would like to hear any comment or opinion on this.
>Maybe, I am little over concerned.
>
>Chuan Wang, Ph.D.
>Director of NMR
>Department of Chemistry
>Rutgers, The State University of New Jersey
>908-445-3967
>wangc@rutchem.rutgers.edu
>
>
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