APPENDIX VI EMERGENCY PROCEDURES DURING POWER OUTAGES
It is important to remember that some equipment
cannot be turned off and certain other pieces of
equipment do not shut themselves off when there
is a power outage. Pre-plan specific procedures
for your laboratory while adhering to the following:
* Close chemical fume hood sashes. No work is
allowed in fume hoods during a power outage.
* Ensure that all chemical containers are
secured with caps, parafilm, etc.,
* All non-essential electrical devices should
be turned off. Keep the doors of refrigerators
and freezers closed. Check to ensure large
lasers, radio frequency generators, etc. have
been turned off.
* Turn off all gas cylinders at the tank valves.
If a low flow of an inert gas is being used to
"blanket" a reactive compound or mixture, it
may be appropriate to leave the flow of gas
on. The decision to do this should be part
of the written SOP specific for each lab and
included in this CHP.
* Check all cryogenic vacuum traps (N2, CO2 +
solvent). The evaporation of trapped materials
may cause dangerous conditions.
* Check all pressure, temperature, air, or
moisture sensitive materials and equipment.
This includes vacuum work, distillations, glove
boxes used for airless/moistureless reactions, etc.