Thanks to all who have shared on this topic- as with many safety issues in research institutions, there is no “one size fits all” SOP for this.
We do have a LOTO procedure in place- including locking out a computer keyboard which runs the MOCVD. We include a flow chart for the decision making process. The problem was that facilities workers were trying to circumvent the SOP buy requesting the key for the roof top, and then keeping the key so they would not have to go through the process every time. Or, using a scissor-jack mechanism on the outside of the building to gain access. We ha ve both extremes - those workers who are unduly concerned with whatever goes up a fume hood, and those who will try to get around The System. Training, and enforcement are the key to any successful SOP.< /p>
Stefan Wawzyniecki, CIH, CHMM< /font>
Discussion List [mailto:DCHAS-L**At_Symbol_Here**LIST.UVM.EDU] On
Behalf Of Wawzyniecki Jr, Stefan
Sent: Friday, October 30, 20 09 9:55 AM
Subject: [DCHAS-L] Roof top exhaust fan maintenance Policy
In general, maintenance staff working on rooftop fume ho od exhaust equipment have indicated their concerns about being on a roof, and possibly being exposed to whatever is being vented.
In a more specific laboratory situation, involving MOCVD (metal organic chemical vapor deposition), we have a lock-out tag-out polic y, due to the severity of the toxic gases involved.
Thanks for the feedback.
-Stefan Wawzyniecki, CIH, CHMM
University of Connecticut
Think green before you print this ema il.
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