ML20100Q018

Proposed Tech Specs Re Updated Lab Testing Std for Surveillance Testing of Representative Activated Charcoal Samples from CR Emergency Filtration Sys & Standby Gas Treatment Sys

ML20100Q018
Person / Time
Site:	Fermi
Issue date:	01/29/1992
From:	DETROIT EDISON CO.
To:
Shared Package
ML20100Q016	List: ML20100Q018 NRC-91-0160, Application for Amend to License NPF-43,providing Updated Lab Testing Std for Surveillance Testing of Representative Activated Charcoal Samples from CR Emergency Filtration Sys & Standby Gas Treatment Sys
References
NUDOCS 9202050206
Download: ML20100Q018 (2)

Text

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e ffl.AINMENTSYSTEMS r

SURVElllANCE REOUIREMENT5 (Continued) b.

At least once per 18 months or (1) after any structural maintenance on the HEPA filt<er or charcoal adsorber housings, or (2) following painting, fire: or chemical release in any ventilation zone communicating with the subsystem by:

1.

Verifying that the subsystem satisfies the in-place penetration and bypass leakage testing acceptance criteria of less than 0.05% and uses the test procedure guidance in Regulatory Positions C.E.a. C.5.c. and C.S.d of Regulatory Guide 1.52. Revision 2. March 1978, and the system flow rate is 3800 cfm i 10%.

2.

Verifying.mhin 31 days after removal that a laboratory analysis of a reprotentative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2. March 1978, shows a methyl iodide penetration of less than 0.175% when tested at a temperature of 30'C and at a relative humidity of 70% in accordance with ASTM D3803 1079 with a 6 inch bed; and 3.

Verifying a subsystem flow rate of 3800 cfm i 10% during system operation when tested in accordance with ANSI N510 1980, c.

After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation by verifying within 31 days af ter removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C,6.b of Regulatory Guide 1.52 Revision 2.

March 1978, shows a methyl iodide penetration of less than 0.175%

when tested at a temperature of 30'C and at a relative humidity of

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70% in accordance with ASTM 03803 1979 with a 6 inch bed.

i d.

At least once por 18 months by:

1.

Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 11.0 inches water gauge while operating the filter train at a flow rate of 3800 cfm i 10%.

2.

Verifying that the filter train starts and isolation dampers open on each of the following test _ signals:

a)

Manual initiation from the control room, and b)

Simulated automatic initiation signal.

9202050206 920129 PDR ADOCK 05000341 r

P PDR FERMI - UNIT 2 3/4 6-55 Amendment No.

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.o-I ELANT SYST WS l

SVRVElllANCER10V!Rf'tENIS 4.7.2.1 The control room emergency filtration system shall be demonstrated OPERABLE:

At least once per 12 haurs by verifying'that the control room air a.

temperature is less than or equal to 95 f.

b.

At least once per 31 days by:

1.

Initiating fan operation from the control room with each

- subsystem, establishing flow for at least 15 minutes through the HEPA filters and charcoal adsorbers.

2.

Verifying flow through the HEPA filters and charcoal adsorbers for at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> with the asscciated omergency makeup inlet air heater OPERABLE.

The subsystem used to establish the 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> of flow through the HEPA filters and charcoal adsorbers shall be staggered such that each subsystem is utilized at least once per 62 days,

'f c.

At least once per 18 months or (1) after any structural mair.tanance on the HEPA filter or charcoal adsorber housings, cr (2) following L

painting, fire, or chemical release in any ventilation zone communicating with the system by:

1.

Verifying that the system satisfies the in-place penetration testing acceptance criteria of less than 1.0% and uses the test.

procedure guidance in Regulatory Positions C.5.a. C.5.c, and C.5,d of Regulatory Guide 1.52, Revisicn 2, March 1978, while operating the system at a flow rate of 1800 cfm i 10% through the makeup filter and 3000 cfm i 10% through the recirculation filter.

2.

Verifying within 31 days after removal that a-laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, shows a methyl iodide penetration of less than 1,0%

when tested at-a temperature of 30'C and at a relative humidity I

of 70% in accordance with ASTM D38031979 with a 2 inch bed for I

the emergency makeup filter train and a 4 inch bed for the I

emergency recirculation air filter train; and l

3.

Verifying a system flow rate of 3000 cfm i 10% during system operation when tested in accordance with ANSI N510 1900.

.d.

After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation by verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained-in accordance with Regulatory.

l-Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, shows a methyl iodide penetration of less than 1.0% when tested at a temperature of 30*C and at a relative humidity of 70% in accordance with ASTM 03803-1919 with a 2 inch bed for the emergency makeup air filter train and a 4-inch bed for the emergency recirculation air

_ filter train.

FERMI - UNIT 2 3/4 7-9 Amendment No. //, //,

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