[labnetwork] Fire Alarm and HAZMAT panels

[Mary Tang]

Dear Michael --

The overall TGO response matrix for SNF is posted on the Stanford EH&S 
website:
http://web.stanford.edu/dept/EHS/prod/researchlab/lab/tgo/TGOMatrix4color.PDF

And yes, it does depend on sets and subsets of alarms being wired 
independently, so some careful thought should be given to how the space 
is used and what spaces should be affected.

We recently took on management of a satellite lab physically located on 
our site, but code-wise considered a separate building.  We had what 
should have been a minor incident (hydrogen detector in the tool exhaust 
went off while the H2 MFC was being tested). But because all the 
building alarms in the Annex building are daisy chained in series, there 
is no way to have a local lab relocation alarm without triggering a 
building-wide HazMat evacuation.  And unfortunately, this alarm occurred 
just before a student was to deliver his thesis defense in the 
auditorium.  If the building is mixed use, it makes sense to contain the 
control areas in well-defined locations.  This requires thought given to 
how to the HazMat and fire panels should be linked together.

We also underwent a renovation of our TGO system, prompted by phase-out 
of two Honeywell detector products -- and would be glad to discuss with 
you the specifics of our system design.

Mary

-- 
Mary X. Tang, Ph.D.
Stanford Nanofabrication Facility
Paul G. Allen Bldg 141, Mail Code 4070
Stanford, CA  94305
(650)723-9980
mtang at stanford.edu
http://snf.stanford.edu



On 10/22/2015 4:55 PM, Michael Khbeis wrote:
> Dear Colleagues,
>
> We are finalizing designs for our cleanroom renovation and a question regarding how Fire Alarm and HAZMAT panels are integrated came up.  Currently our HAZMAT panel with toxic gas monitors, gas cabinets, and burn-box monitor also has yellow pull stations and HAZMAT alarms on it. HAZMAT alarms trigger a relocation alarm but not a fire alarm for the whole building. High level gas leak will trigger the fire alarm panel and dump the building. We have several issues with this architecture - for example currently it is all or nothing so if one of the gas cabinets has a problem they all get tripped. Also, if we are working on a system the pull stations and strobes have to be bypassed.  Clearly less than ideal. Another issue is the fire code isn’t really geared toward semiconductor fab facilities, so our code description is lacking.
>
> For those of you with experience or relatively new facilities, can you please share a little about your system architecture and HAZMAT/TGM systems?  Also, we are planning on migrating from our Zellweger/MDA System 16 to remote gas monitoring.  Can I please have some feedback on experience with remote monitors and replacement/maintenance vs the central systems?
>
> Gratefully,
>
> Dr. Michael Khbeis
> Associate Director, Washington Nanofabrication Facility (WNF)
> National Nanotechnology Infrastructure Network (NNIN)
> University of Washington
> Fluke Hall, Box 352143
> (O) 206.543.5101
> (F) 206.221.1681
> (C) 443.254.5192
> khbeis at uw.edu
> www.wnf.washington.edu/
>
>
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