[labnetwork] TGMS Emergency Response Cordination

[Noah Clay]

Corey,

Here’s our general protocol for the University of Pennsylvania in Philadelphia.  Everyone has agreed to and responds according to this plan.  Below is a from a memo sent last year to our safety group, EHRS (R=radiation), campus police and fire group.

Best,
Noah Clay

Quattrone Nanofabrication Facility
University of Pennsylvania
Philadelphia, PA

*******

-All of our gas cabinets and VMBs can be shut-down remotely by the TGMS.  
-All equipment that handles toxic gases can be shut-down or addressed remotely by the TGMS as well.  
-In some cases, we don’t shut-down the equipment completely; we shut-down gas pods/boxes attached to the equipment.

*******

We are monitoring hazardous gases and alarming at two levels of detection:

	- Level 1: 1/2 TLV or 10% LEL
	- Level 2: TLV or 20% LEL

The system also warns us for non-zero concentration in any sensor.  To avoid noise blips and false alarms, any Level 1 or Level 2 detection is considered real (sounds alarms) if it is measured consecutively for three seconds.

Local evacuation is with horns and blue strobes, which are zoned.  For example, if there is a detection of toxic gas in the cleanroom ambient, then horns and blue strobes will be active there, but not in the gas bunkers.

The TGMS is under service contract with two visits annually (gas challenging) and has an active autodialer (analog line, not VOIP).

The autodialer has four outputs (two for exhausted enclosure detection and two for ambient detection):

1. Alarm 1: Level 1 gas detection in an exhaust
	Response: 
		- Shut-down detected gas supply
		- Shut-down equipment connected to detected gases
		- Contact Nanofab facility staff

2. Alarm 2: Level 2 gas detection in an exhaust
	Response:
		- Alarm #1 response 
		- Local evacuation with horns & blue strobes
		- Contact PennComm (campus police), EHRS on-call pager, EHRS Director, Nanofab facility staff

3. Alarm 3: Level 1 gas detection in the ambient 
	Response:
		- Alarm #1 response
		- Ring fire alarm
		- Local evacuation with horns & blue strobes

4. Alarm 4: Level 2 gas detection in the ambient
	Response: 
		- Alarm #3 response
		- Contact PennComm (campus police), EHRS on-call pager, EHRS Director, Nanofab facility staff

Gas cabinets and VMBs shut-down themselves for loss of exhaust and the cleanroom is evacuated.  We do not turn on the TGMS in this case; it’s not a detection event.

> On Jul 17, 2015, at 11:57 AM, Corey David Wolin <cdwolin at ucdavis.edu> wrote:
> 
> I'm curious as to how many of you coordinate with campus first responders and EH&S on the serious nature of the the gases to which the sensors are monitoring?  What do many of you feel the proper emergency response to a high level silane alarm should be? Low Level? In addition, at which point should the TGMS evacuate the building if automatic shutoff valves exist for both high and low level alarms?  

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