[labnetwork] Hazardous gas delivery logistics

[Dennis Schweiger]

Nava,

good morning. Here at the University of Michigan/LNF our gas vendor has
access to the chemical dock delivery for our lab (they deliver at 4:30-5 in
the morning) and the normal gases (N2, Ar, He, O2, H2, CH4, etc.) are
delivered by them.  When our staff arrive around 7, those cylinders will be
moved to their proper storage location.  The delivery person will also pick
up the empties at the same time.

For all of the HPM materials (SiH4, NH3, NF3, AsH3, PH3, BCl3, Cl2, etc),
we've "right sized" both the cylinders, and the fills, so that we have a
cylinder change out cadence of 12-18 months.  This means that the
physically largest HPM cylinder we have in our site is one of the Silanes.
It's about 9" diameter and 24" tall.  All of the HPM cylinders are shipped
common carrier to our building dock, however our receiving crew for the
building will call me as soon as they arrive, and either myself, or another
individual, will go pick them up.  The distance between that dock, and our
controlled service aisle is about 125' through a seldomly used building
corridor.  We use all DISS cylinder valves on our HPM's, they're shipped
blanked off, and then when the cylinder goes into one of the gas storage
rooms of our fab, those new "full" cylinders are stored in the lower half
of the gas cabinet that houses the online cylinder.  We'll wear SCBA only
when we break the cylinder valve cap to do a change out.

So far, this procedure (in place since 2008) has worked well for us, and
has not created any issues with either getting the gas in a timely fashion,
or unnecessarily exposing the building occupants to an exposure risk.

Dennis Schweiger
Facilities Manager
University of Michigan/LNF

734.647.2055 Ofc


On Wed, Jan 31, 2018 at 2:06 PM, Nava Ariel-Sternberg <na2661 at columbia.edu>
wrote:

> Dear all,
>
>
>
> I am very happy to say that we are finally gearing up to full operations
> in the Columbia University clean room (after a long renovation period,
> inspections, permits etc.). The final stage will be to bring on-line
> systems that use toxic and other hazardous gases that we do not yet have on
> site. As we are getting ready to receive those gases, we started discussing
> what would be the safest way to receive them and the logistics involved.
> This has brought some interesting questions and I wanted to get some inputs
> from other facilities.
>
>
>
> Could you please comment on the toxic gases receiving procedures in your
> facility? Is the delivery done at special times in the day? Are you
> securing the cylinder path? (making sure no one is in the corridor/elevator
> etc.?) Are you performing leak checks when the cylinder arrives to campus?
> Are staff wearing SCBA when handling the cylinders? When is the transfer
> point between the gas company and the technical staff of the clean room?
>
>
>
> Thanks,
>
> Nava
>
>
>
>
>
> Nava Ariel-Sternberg, Ph.D.
>
> Director of CNI Shared Facilities
>
> Columbia University
>
> 530 w120th st., NY 10027
>
> Room 1015/MC 8903
>
> Office: 212-854-9927 <(212)%20854-9927>
>
> Cell: 201-562-7600 <(201)%20562-7600>
>
>
>
> ​
>
>
>
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