closure project manager - Document Request - U.S. Department of ...

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SR 4.2.1 Verify that the removal eficiencv is 2 99.9% for the
Building 99 f exhaust ventilation svstem HEPA filter
stage.
SR 4.2.2 .As lonr! as the Building 985 exhaust ventilation system
is intended to be used. verifv that the renioval efficiency
is 2 99.9% for a Building 98.5 exhaust ventilation
svstem HEPA filter stage.
SR 4.2.3 Verify that the pressure differential in the Building 991
exhaust ventilation svstem plenum is 2 0.5 in. w.g.
nqative with respect to atmospheric reference.
SR 4.2.4 Verifv that the uressure differential in Room 170 is
2 0.02 in. W.Z. negative with resmct to atmosoheric
. reference.
SR 4.2.5 Verify that the pressure differential across the
Building 991 exhaust ventilation system Plenum is
5 4 in. w.g. negative.
Revision 1
Septcmher 1999
~ Once
FREQUENCY
Once Der 18 months
Once Der IS months.
Der working shift.
Once Der working shift
and upon completion of
receipt or shipment
operations in Room 170
(Le.. closina dock door).
Once per working shift.
A-46 Building 991 Complex FSAR
Appendix A