POCl3 release tonight
rissman at stanford.edu
Tue Jul 24 22:11:10 PDT 2007
There was a release of POCl3 from Tylan6 at approximately 7 pm this
evening. The lab was evacuated and the release was halted when Eric
Perozziello cut off the nitrogen supply to the bubbler. John Shott
and I arrived shortly after the evacuation. We checked the sensors
at the TGO monitoring computer and could find no response at the
sensor nearest to the tube, above wbdiff, or at the sensor in the
bubbler exhaust. John then used a handheld sensor to check the
bubbler and the area at the front of the tube where the leak occurred
and found no detectable gas. The maintenance group will further
investigate the cause of the release in the morning.
The lab was reopened at about 8:15.
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