[labnetwork] Silane quantity

[Bob Hamilton]

Fab Colleagues,

I'll add, as a general policy about gas cylinder safety, given modern 
gas cabinets, toxic gas monitoring systems and orbitally-welded 
distribution the most likely time for a corrosive, pyrophoric or toxic 
gas incident to occur is during a cylinder change-out.

My statement draws on presentations by Eugene Ngai who is often 
described as the "silane guru". Retired chemical eningeer Eugene Ngai 
has done an excellent job of documenting silane incidents and safety 
practices.

Arguing for smaller quantities of dangerous gases is in many cases an 
argument for less safety.

Bob Hamilton

-- 
Robert Hamilton
University of California at Berkeley
Marvell NanoLab
Equipment Eng. Mgr.
Room 520 Sutardja Dai Hall
Berkeley, CA 94720-1754
bob at eecs.berkeley.edu
Phone: 510-809-8600
Mobile: 510-325-7557 (Emergencies only poor cell phone service in lab)e-mail preferred



On 1/7/2015 9:04 AM, Dennis Schweiger wrote:
> Matthie,
>
> good morning.  Here at UofMichigan, we have two cylinders on-line, 
> both are about 40 cubic feet.  We also have a single spare cylinder in 
> storage.  Our current cadence for change-out is about every 8 months.  
> It can vary +/- 2 months with usage.
>
> Dennis Schweiger
> University of Michigan/LNF
> 734.647.2055 Ofc
>
> On Tue, Jan 6, 2015 at 4:30 PM, Matthieu Nannini, Dr. 
> <matthieu.nannini at mcgill.ca <mailto:matthieu.nannini at mcgill.ca>> wrote:
>
>     Dear colleagues,
>
>     first of all, happy new year to all of you ! May the force be with
>     you all !
>
>     My EHS dept. would like to compare quantity of silane on site in
>     different labs. So, if you can spare 30s to answer those 2
>     questions then you can go chasing the student that left the
>     evaporator at atmosphere during christmas:
>     - how much silane do you use yearly ?
>     - what is the cylinder volume you have ?
>
>     cheers
>
>     Matthieu
>     McGill Nanotools
>     _______________________________________________
>     labnetwork mailing list
>     labnetwork at mtl.mit.edu <mailto:labnetwork at mtl.mit.edu>
>     https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork
>
>
>
>
> _______________________________________________
> labnetwork mailing list
> labnetwork at mtl.mit.edu
> https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mtl.mit.edu/pipermail/labnetwork/attachments/20150107/e3bc5580/attachment.html>