Glenn D. Canter <><
Respiratory Protection Specialist
Radiological Protection Department
Surry Power Station

Dominion Generation
Phone: 757-365-2669
Fax: 757-365-2668
Pager #: 7653; Email: [email protected]<mailto:[email protected]>


From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Nadeau, Marc
Sent: Thursday, January 29, 2015 12:27 PM
To: '[email protected]'
Cc: Perkins, David
Subject: Powernet: TSI Portacount
Seabrook Station recently sent a Portacount respirator fit test device to the 
vendor for calibration and it was found to be out of the vendor's standard 
tolerance of ±15%.   So, we are benchmarking to understand how others maintain 
Portacount devices and are asking if you would please answer 4-benchmark 
questions?

BENCHMARK QUESTIONS
If you use TSI Portacount devices to perform respirator fit testing;


1.   How frequently do you calibrate your Portacount device? Annually
Why? Vendor recommendation


2.      What is your minimum overall fit factor? As required by regulations for 
the different types of respirators. >1000


3.      Do you add margin to your minimum overall fit factor in the event that 
the Portacount as-found condition is outside the vendor tolerance? No
If so, what is the margin? We would take the unit out of service if found 
outside the vendor tolerance. Our units are checked prior to use, so we would 
see if it is   out of tolerance and place it out of service.


4.   What actions do you take if your Portacount device as-found condition is 
outside the ±15% vendor standard tolerance? We haven't observed this.

If we had this situation we would evaluate history of daily check performances 
and the potential impact of the difference on fit tests performed in accordance 
with our corrective action program.

Depending on the outcome of this evaluation we would restrict individuals 
qualifications and conduct new fit tests as appropriate.


David Perkins
SR. RP Analyst
NextEra Energy -Seabrook Station
Ph:603-773-7079



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