ML20118B529
| ML20118B529 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 09/25/1992 |
| From: | BALTIMORE GAS & ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20118B528 | List: |
| References | |
| NUDOCS 9210050036 | |
| Download: ML20118B529 (17) | |
Text
1 NITAC[lMENT (1)
UNIT I TECilNICAl, SI'ECIFICATIONS 11EVISED l' AGES s
t 9210050036 920925 PDR ADOCK 05000317 9
-._ _ _. =..
3/4.6 CONTAINMENT SYSTEMS f
SURVEILLANCE REQUIREMENTS (Continued)
^
-y n
3.b Verifying within 31 days after removal that_ a laboratory-j analysts'ofa carbon sample removed from one of the charcoal f g",-
( adsorbers demonst-ates a removal efficie,ncy'6f.t 95% for gl N
radioactive elemei& iodine when thedample is tested in
)
y,A n
accordance with ANSI MNOs1975-(130*C, 95% R.H.).
The carbon T
fnsed samples not obtained from t'es' canisters-shall be prepared by J
- f/ *
[
emptying a representatife sample rtm an-adsorber test tray
(
section, mixing-the adsorbent thorougY y and obtaining samplesataeasttwoinchesindiameterahnIQa-length equal-to'the thickness of-the bed. Successivesample%1 dejemov,ed from dKfergtes_t tray segns gg s
4.
Verifying a filter train flow rate of 20,000.cfm 110% during system operation when tested in accordance with ANSI N510-
-1975.
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:
/g K
eri fy days analysis of a carbon sample demonstrates a removal eJffency-DA of 3 95%'Yorqadioactive elemental iodine whenfeTample is 4
7,ued y
'testad-in accorlince (th ANSI N510-1975 (E 0"C 95% R.H.).
Sampies are prepared by D ty a rep'resentative samp1e-from an adsorber test tray section g, xing the adsorbent y
thoroughly, and obtaping' samples at Nieaswo inches in we (N
diameter a h1 length equal'to-the thickn bed.
T Successive amples will be removed from different t yeQs.
yw Subsequent to reinstalling the adsorber tray used for obtaining the carbon sample, the filter train shall be demonstrated OPERABLE by alsr verifying that the charcoal adsorbers remove 1 99% of'a nalogenated hydrocarbon refrigerant test-gas when they are tested in-place in:-
accordance with Regulatory Positions C.S.a and C.5.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating i-the filter train at a flow rate of 20,000 cfm i 10%.
d.
At least once per P.EFUELING INTERVAL by:
1.
Verifying that the pressure drop across the-combined HEPA filters-and charcoal adsorber banks is < 6 inches-Water Gauge while operating the filter train at a flow rate of 20,000 cfm i 10%.
CALVERT CLIFFS - UNIT 1 3/4 6-21 Amendment No. 169
~
.w, v
..,. ~,
r
i 3/4.6 CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 2.
Verifying that the HEPA filter banks remove t 99% of the DOP when they are tested in-place in accordance with Regulatory Positions C.S.a and C.5.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating the filter train at a flow rate of 2000 cfm + 10%.
-yk,PrWOf~
3.[Ver41ying within 31 days after removal that a laboratorf-
/h6
( analysir'of a carbon sample removed from one of the,ch3rcoal s
/
( adsorbers denionstrates a removal efficiency of > 90% for uclk
( radioactive methyllodide when the sample is,tes.ed in Jm"j
[ accordance with ANSI N510M975d30 C, 9ji44'fl.).
The carbon i, samples not obtained from test canksters shall be prepared by "g'
[
emptying a represer.tative,sampff from'an-adsorber test tray section, mixing theadsorbent thoroughly, aiid obtaining i samples at,1 east't'wo inches in diameter and with a' length
/ equal to-the thickness of the bed.
Successive samples wilb h be-r6oved from different test tray sections, wv was xav
_n.am 4.
Verifying a system flow rate of 2000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.
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:
~
. -,.- e m mm (Yke'r~il_y n~g w~ithin 31 dcvs after removal that a laboratory O
9 b, da anElysis of a carbon sample demonstrates a removal ef
("
m of 190% foPradioactive methyl iodide when the, sample is ug
,(
tested in accordanchtth ANSI M510-1975,(30*C, 95% R.H.).
JJHe r1 Samples are prepared by emptyTng'fxing the-adsorbenta gepresentative sa s
(
an adsorber test tray sectionctn ob thoroughly, and obtaining ~' samples at least twhnches in
(
diameter andytthTlength equal to the thickness of'the bed.
'oe,,sive-samples will be removed from different test tdf T
Succes
~~
_zm Subsaquent to reinstalling the adsorber tray used for obtaining the carbon sample, the filter train shall be demonstrated OPERABLE by verifying that the charcoal aosorbers remove 1 99% of the halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with Regulatory Positions C.5.a and C.S.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating 4
the ventilation system at a flow rate of 2000 cfm i 10%.
i CALVERT CLIFFS - UNIT 1 3/4 6-34 Amendment No. 169 l
3/4.7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS 4.7.6.1 The Control Room Emergency Ventilation System shall be demonstrated OPERABLE:
a.
At least once per 62 days, on a STAGGERED TEST BASIS, by deeNrgizing the backup Control Room air conditioner and verifying that the emergency Control Room air conditioners maintain the air temperature 5104*F for at least 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when in the recirculation mode.
b.
At least once per 31 days by initiation flow through each HEPA filter and charcoal adsorber train and verifying that each train operates for at least 15 minutes, c.
At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housing, or (2) following painting, fire or chemical release in any ventilation zone comunicating with the system by:
1.
Verifying that the charcoal adsorbers remove 199% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with Regulatory Positions C.5.a and C.5.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation system at a flow rate of 2000 cfm i 10%,
t.m 2.
Verifying that the HEPA filter banks remove 2 99% of the DOP when they are tested in-place in accordance with Regulatory Positions C.S.a and C.5.c of Regulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation system at a flow rate of 2000 cfm + 10%.
h~~~
m
_c 3.(VeNfying within 31 days after removal that a laboratory 1 9
fQo/gge
( analysts <f a carbon sample removec from one of the-ch1rcoal s
/
[
adsorbers deliionsttates a removal efficiency >fo 90% for y,M radioactive methyl Todide when the sampleTs tested in iI accordance with ANSI N510-1975m(Enhtets shall be prepared 309C;'95% R.H.). The carbon i-
[#
[
samplas not obtained from tes FC vb*
(
by emptying a' represent.atfVe sample from'an-adQrber test
(
tray section, mixing'the adsorbent thoroughly, aM4btaining g
\\ samples atJaast'two inches in diameter and with a leliR
)
(Qe-removed from different test tray sections.
equaljodhe thickness of the bed.
Successive samples wi1P
r
,. ~
y
_a CALVERT CLIFFS - UNIT 1 3/4 7-18 Amendment No. 169
l t
3/4.7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.
Verifying a system flow rate of 2000 vm i 10% during system operation when tested in accordance with ANSI N510-1975.
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:
-m vmm fe[/ne
' Verifying _within 31 days after removal that a laboratcry analysM_
f of a carbon sample demonstrates a removal efficiency o 4 radioactive methyl iodide when.the sample is tes.ted-in,f,.p90rfor (
~
t,;dh accordance
/ with ANSI "510-1975 (30 C, 95% R.H.)pamples are prepared by b.'N
\\, emptying a representative sample-from an'adsorber test tray n8 j section, mixing the adjorbf6t thoroughly, and obtaining samples
( at least two iJn hesTn diameter and with a length equal'to-the thicknessA f'the bed. Successive samples will be removed from )
{diRere3ttesttaysections t
9 ~-
L w
Subsequent to reinstalling the adsorber tray used for obtaining the carbon sample, the filter train shall be demonstrated OPERABLE by also verifying that the charcoal adsorbers remove
> 99% of a halogenated hydrocarbon refrigerant test gas when they
_are tested in-place in accordcnce with Regulatory Pos Lions C.S.a and C.5.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation system at a flow of 2000 cfm i 10%.
3 e.
At least once pc" 18 months by:
1.
Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is < 4 inches Water Gauge while operating the ventilation system at a flow rate of 2000 cfm i 10%.
2.
Verifying that on a Control Room high radiation test signal, the system automatically switches into a recirculation mode of operation with flow through the HEPA filters and charcoal adsorber bank.s and that both of the isolation valves in each inlet duct and comon exhaust duct, and the isolation valve in the toilet area exhaust duct, close.
CALVEM CLIFFS - UNIT 1 3/4 7-19 Amendment No. 169 i
3/4.7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 2.
Verifying that the HEPA filter banks remove 199% of the DOP when they are tested in-place in accordance with Regulatory Positions C.5.a and C 5.c of Regulatory Guide 1.52 Revision 2 March 1978 while operating the filter train at a flow rate of 3000 cfm + 10%.
v-fkwithin31daysafterremovalthatalaboratory" 3.cge[ lysis _of a carbon sample removed from one of-the charcoal
[Oc;obre
,> ana
( adsorbers d'emonstrites a removal efficiency 4f > 90% for i
u /h s, radioactive methyl lodideathen the sample is tested in
}
L1ce/
accordance with ANSI N510-1975JS0?C _95% R.H.).
The carbon g
L samples not obtained from, test canisteFPshaU be prepared O
by emptying a representative sample from an adsbrber test
(
tray section, mix 41@ the adsorbent thoroughly, and obtatQ samples at, lea'st two inches in diameter and with a length
\\ equal to'the thickness of the bed. Successive samples willJ
( be-femoved from different test tray sections, d
.F
,~~J f
4.
Verifying a system flow rate of 3000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.
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:
vh,
~, -
._ n thin 31 days after removal th$ a laboratory analysis O
A by*,h ( of Tcarbon_ sample demonstrates a removal efficiency of > 93%-for' g/
radioactive methyl ~ iodide when the sample is testesL4n'accordance with ANSI N510-1975 (30 C,9 5% R.H.).
SampD sd re prepared by A' *j
's, emptying a representative campTe froman adsorber test tray
't two inches-in' diameter and with a length section, mixing the adsorhant1?iorough197and-obtaining samples g
(
C at it thickness of-ttfe' bed.
Successive samples will be removed ffam
~
<Qex ifferent test tray sections.g-a ~
r~&mr~-,Q -
n Subsequent to reinstalling the adsorber tray used for obtaining the carbon sample, the filter train shall be demonstrated OPERABLE by also verifying that the charcoal adsorbers remove t 99% of a halogenated hydrocarbon refrigerant test gas when they
~
are tested in-place in accordance with Regulatory Positions C.5.a and C.S.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation system at a flow rate of 3000 cfm i 10%.
4 d.
At least once per 18 months by verifying that the pressurn drop across the combined HEPA filters and charcoal adsorcer banks is
< 4 inches Water Gauge while operating the filter train at a flow rate of 3000 cfm i 10%.
CALVERT CLIFFS - UNIT 1 3/4 7-22 Amendment No. 169
3/4.9 REFUELING OPERATIONS SUtVEILLANCE REQUIREMENTS (Continued) b.
At least once per 18 months or (1) after any structural.
maintenance on the HEPA filter or charcoal adsorber husing, or (2) following painting, fire or chemical release in any ventilation zone comunicating with the system by:
1.
Verifying that tne charcoal adsorbers remove t 99% of a halogenated hydrocarbon refrigerant test gas when they sre tested in-place in accordance with Regulatory Positioni C.5.a and C.S.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation system at a flow rate of 32,000 cfm i 10%.
2.
Verifying that the HEeA filter banks remove 199% of the DOP when they are te teC n-place in accordance with Regulatory Positions C.5.a end C.5.c of Regulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation system at a flow a%
rhte of 32,000 cfm i 104.
./-
,",, m
/If
3.c', Verifying within 31 days after removal that a 1 O 1 4 analysis ~of~a carbon sample removed from one of-the' charcoal Dg
( adsorbers demonstrates a removal efficiency'6f 3 90% for
/ radioactive methyl iodideahen the sample is tested in ZM l accordance with ANSI N510-1975;(30fC, 95% R.H.).
The carbon sarples not obtained from test canistert'shall be prepared by \\
r
-nO emptying a representativ'e sample from an adsorber test tray )
'~
section, mixing-the adsorbent thoroughly, and obtaining i
[ samples at-least two inches in diameter and with a length equal-to'the thickness of the bed.
Succe>sivesampleswiiT
{ be[ removed from different test tray sections.
y r
,f 4.
Verifying a system flow rate of 32,000 cfm i 10% during system operation when tested in accordance with ANSI NS10-1975.
c.
After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of chgcoal adsorber operv.lon by:
~~-
vw.7 w
N_
, _, ~,
i-CVer[fying within 31 days after removal that a laboratory analysis 9i
( of carbon. sample demonstrates a removal efficiency,ofo'90% for 7 radioactive'methyliodide when the sample is tetted in accordance k
( with ANSI N510-1975'(30'C,J5% R.H.)ySa61es are prepared by yJ 7 emptying a representative sanigleeftom an adsorber test tray
,M
( section, mixing the adsorb 6ift thoroughly, and obtaining samples j.
4 at least two inches'Tn diameter and with a length _ equal to the
,, b,,
Lthickness-of'thebed. Successive samples will be rem'oved from QifferEnttesttraysections.
i CALVERT CLIFFS - UNIT 1 3/4 9-16 Amendment No. 'C.)
INSli}EI' A Verifying within 31 days after removal that a laboratory analysis of a representative carbon sampie obtained from an adsorber tray or from an adsorber test tray in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, demonstrates a removni elhciency of a 95% for radioactive element il iodine when t!" saraple is tested in accordance with F.Sl N510-1975 (130*C,95% R.i1.).
J N Sl? R T !!
Verifying wnhin 31 day:, after removal that a_ laboratory analysis of a representative carbon sample obtained from an adsorber tray or from an adsorber ta v tray in accordance w;th a removal cificiency of 2 90% gulatory Guide i 42, Revision ',..iarc.' '978, demon llegulatory Position C.6.h of Re accordance with N 41 N5101975 (30 C,95% lt.I1.).yl iodine when the sample is tes for rab oactive meth h
1 l
sa.-,
-,,.-a,
...,~.-,m,,-w-
.,,,,,,,..,,~,.,,,,,,.w,-a,,.
a-,, + ---
,w
.-v-
tUl't(CllALENT (2)
UNIT 2 TECilNICAL SPECIFICATIONS ItEVISED PAGES b
6 3/4.6 CONTAINMENT SYSTEMS SURVEILUSE REC 1'7ftEMENTS (Contir.ued) ys
~v~_
.x
._ g
, ~ ~ '
g.
3.('9.'r,ifying within 31 days after removal that a laboratory )l e
p
( anal'ysis of a carbon sample removed from one of the.charcoa
(,)
d c/*f
[ adsorbers demonstrates a removal efficiency ofW95% for
~
radioar.tive elemental ~ iodine when the sample is tested in
}
Mg
( accordance with ANSI N510-1975_(130 C, 95% R.H.). samples The carbon 7,ov I f\\ emptying a representative sample from an'adsorber test tray
, //.
( section, mixinphe' adsorbent thoroughly, and ' obtaining
\\ samples at least two inches in diameter and with a length
( equal to'the thickness of the bed.
Successive samples will
( be-removed from different }est tray sectionspf~._.-
.-_r
_y~ ~.-
~-
4.
Verifying a filter train flow rate of 20,000 ctm i 10% during system operation when tested in accordance with ANSI N510-1975.
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:
,,,v~r,,/y v
y m,.
CVerifyi.ng within 31 days after removal that a laboratory analysh oluydM
/ of a carbbn-sample demonstrates a removal efficiency 0fd1% for 3
( radioactive elemental-iodine when the sample i.s test,ed in M
7 accordance with ANSI N510-1975-(1301C. 95%-R'Ti.).
Samples are
% dxd
(
prepared by emptying a representat4vtf, sample from an adsorber
/
> samples at least two-Gches in diameter and with a lbngth_equaltest tray section
<A
(
to the thicknesii of the bed. Successive samples will be remoyed [
N from-different test tray sections.,.
j.~. W-
~
+.w
. a ~ ~
Subsequent to reinstalling the adsorber tray used for obtaining the carbon sample, the filter train si all be demonstrated t
OPERABLE by also verifying that the charcoal adsorbers remove
> 99% of a halogenated hydrocaroon ref rigerant test gas when they are tested in-place in accordance with Regulatory Positions C.S.a and C.S.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating the filter train at a flow rate of 20,000 cfm i 10%.
CALVERT CLIFFS - UNIT 2 3/4 6-17 Amendment No. 149 I
3/4.6 CONTAINMENT SYSTEMS SUkVEILLANCE REQUIREMENTS (Continued) 2.
Verifying that the HEPA filter banks remove 199% of the 00P when they are tested in-place in accordance with Regulatory Positions C.S.a and C.S.d of Regulatory Guide 1.52 Revision 2 March 1978 while operating the filter train at a flow rate of 2000 cfm + 10%.
~
v-vN t
3.(Werifying within 31 days after removal that a laboratoryy' k7
,Ac analysis of a carbon sample removed from one of the. charcoal
'k r adsorbers' demonstrates a removal efficiency of-t'90% for U. A l radioactive methykiodide when the sampjeds tested in
)
m"/
, accordan:e with ANSI'N510-1975 (30 c (95% R.H.).
The carbon l'
( samples not obtained from tsst<shisters shall be prepared by kemptyingarepresentative-ssplefrom'an-adsorbertesttray p'
section, mixing the-ads'orbent thoroughly, and' obtaining
( samples at least'two inches in diameter and with a length '[
( equal,to-ths thickness of the bed.
Successive samples wil1 (pe (emove,d from different test tray sectijns.
g-4.
Verifying a system flow rate of 2000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.
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:
,, n,- ~
ws,
-~ w v-m t.'Verifyjng within 31 days after removal that a laboratory analysiQ
/,g,/'y. ~
of a carbon 4 ample demonstratas a removal efficiency cf390rfor
/
radioactive methil9odide when the sample is tested 1ifaccordance v,8 k
with ANSI N510-1975 (30 C,'95%_R.H.J.-Sam ~pl_es are prepared by I
7g emptying a representative sample Trom an adsorber test tray
}
i
/
section, mixing the adsorbeht thoroughlf,'and_ obtaining samples
"[i
(
at least two inches'in diameter and with a lengtr. equal to the di,f ferent'of-th~e bed.
thickness Successive samples will be removed'froa j
(
test tray sections.
f
-)
p.
- y
_y 7
e i
CALVERT CLIFFS - UNIT 2 3/4 6-30 Amendment No. 149
3/4.7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS 4.7.6.1 The Control Room Emergency Ventilation System shall be j
demonstrated OPERABLE:
a.
At least once per 62 days, on a STAGGERED TEST BASIS, by deenergizing the backup Control Room air conditioner and verifying that the emergency Control Room air conditioners maintain the air temperature 5104'F for at 12ast 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when in the recirculation mode.
b.
At least once per 31 days by initiation flow through each HEPA filter and charcoal adsorber train and verifying that each train operates for at least 15 minutes.
c.
At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber busing, or (2) following painting, fire or chemical release in any ventilation zr.ie comunicating with the system by:
1.
Verifying that the charcoal adsorbers remcVe t 99% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with Regulatory Positions C.5.a and C.S.d of Regulatory Guide 1.52 Revisien 2 March 1978 while coerating the ventilation system at a flow rate of 2000 cfm i 10%.
w 2.
Verifying that the HEPA filter banks remove t 99% of the DOP when they are tested in-place in accordance with Regulatory Positions C.E.a and C.5.c of Regulatory Guide 1.52 Pr. vision 2 March 1978 while operating the ventilation system at a flow rate of 2000 cfm + 10%.
~
N 3.
er{fying within 31 days after removal that a labcratory h7/
analysis of a carbon sample rc.4cved from one of the' charcoal
/y adsorbers demonstrates a removel efficiency 4 > 90% for s
v./A radioactive methyl'4cdide when the sample'is tested in accordance with ANSI N510-1975 (30 C, 95% R.H.).
The carbon i-InWI samples not obtained from testWanitters shall be prepared abf by emptying a represent 3thrii sample (fom-an adsorber test tray section, mixijgdhe adsorbent thoroughlyNnd obtaining
[ samples at leAst'two inches in diameter and with'asQngth g equal toJ he thickness of the bed.
Successive samples'will 4
bejemoved from different test tray sections, w
]
' ' ' N J ~.
,r -
CALVERT CLIFFS - UNIT 2 3/4 7-18 Amendment No. 149
~.
~..
3/4.7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.
Verifying a system flow rate of 2000 cfm i 10% during system operation s. hen tested in accordance with ANSI N510-1975.
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:
y-r v w
,w 3'
/
p/
d erifying within 31 days after removal that a laboratory analysis
/
0(fu ( of a carbon _ sample demonstrates a removal efficiency offs 0% for U' g' radioactive tiethyl--iodide when the sample is teste?, in accordance
[
with ANSI N510-1975 (30'C, 95%_R.H,) -56ples are prepared by 7"W' f
\\.
emptying a representative sample"from an adsorber test tray 3
og
[
section, mixing the,adso~r$ent thoroughlf,'and obtaining samples
.)
at least two_ inches in diameter and with a leiigth-equal to the i
(,,diffefenttesttraysections.Successivesampleswillbe thickness 4f the bed.
d 7%f
~s.
y~. _ ~
_u /~
Subsequent to reinstalling the adsorber tray used for obtaining the carbon sample, the filter train shall be demonstrated OPERABLE by also verifying that the charcoal adsorbers remove
> 99% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with Regulatory Positions C.S.a and C.S.d of Regulatory Guide 1,52 Revision 2 March 1978 while operating the ventilation system at a flow of 2000 cfm i 10%.
e.
At least once per 18 months by:
1.
Verifying that 1.he pressu;e drop across the combined HEPA filters and charcoal adsorber banks is < 4 inches Water Gauge while operating the ventilation system at a flow rete of 2000 cfm i 10%.
2.
Verifying that on a control room high radiation test signal, the system automatically switches into a recirculation mode of operation with flow through the HEPA filters and charcoal adsorber banks and that both of the isolation valves in each inlet duct and comon exhaust duct, and the isolation valve in the toilet area exhaust duct, close.
4 CALVERT CLIFFS - UNIT 2 3/4 7-19 Amendment No. 149 1 m.-
4-3/4.7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 7 2.
Verifying that the HEPA filter banks remove 199% of the DOP when they are tested in-place in accordance with Regulatory Positions C.S.a and C.5.c of Regulatory Guide 1.52 Revision i
2 March 1978 while operating the filter train at a flow rate of 3000 cfm i 10%.
Il>Qb
)
3.
Verifying within 31 days after removal that a laboratory analysis of a carbon sample removed from one of the charcoal U' j j' adsorbers ' demonstrates a removal efficiency of t 90%for radioactive methyl' iodide when the sample 7^mc,1
(" accordance with ANSI N510-1975 (30%, 95%jsdested in R.H.).
The carbon
\\
samples not obtained from testcardsters shail be prepared 9S, l
by emptying a representJt4ve' sample'from an adsorber test
\\
tray section, mixing 4he adsorbent thoroughly,_and obtaining samples at laast'two inches in diameter and with'aslength equal,to-tfie thickness of the bed.
Successive samples'wil,1 -
be-r6 moved from differeat test tray sections.
~l u %ns %s % s y%s 4.
Verifying a system flow rate of 3000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.
c.
After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal aosorber operation by:
x- ~
h[>/;ye. Ver!fying within 31 days after removal that a laboratory-enalysks
('of a arbonaample demonstrates a removal efficienef'of 3 90% for L/. M radioactive methyl-iodide when the sample is'fested in accordance y,,. /
with ANSI N510-1975 (30*CT95%48.)r'Sampies are prepared by emptying a representative sample from-an adsorber test tray
,,lf section, mixing the adsorbe'nt thoroughly 'and 4btaining samples I
at least two inches'in diameter and with a length' equal-to_Fam) the k thickness of-the bed.
Successive samples will be removed f
. _ different, test tray set.tions.
,m __
C'~
~j (v.a
,~
s Subsequent to reinstalling the aJsorber tray used for obtaining tne carbon sample, the filter train chall be demonstrated OPERABLE by also verifying that the charcoal adsorbers remove i-t 99% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance riith Regulatory Positions C.S.a ar.d C.S.d of F.egulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation system at a flow rate of 3000 cfm i 10%.
d.
At least once per 18 months by verifying that the pressure drop l
across the combined HEPA filters and charcoal adsorber banks is
< 4 inches Water Gauge while operating the filter train at a flow rate of 3000 cfm i 10%.
l CALVERT CLIFFS - UNIT 2 3/4 7-22 Amendnt No. IC l
L
9 3/4.9 REFUELING OPERATIONS
/
SURVEILLANCE REQUIREMENTS (Continued) b.
At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housing, or (2) following painting, fire or chemical release in any ventilation zone comunicating with the system by:
1.
Verifying that the charcoal adsorbers remove 199% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with Regulatory Positions C.5.a and C.5.d r ' Regulatory Guide 1.52 Revision 2 March 1978 while oper; ing the ventilation system at a flow rate of 32,000 cfn, i 10%.
2.
Verifying that the HEPA filter banks remove t 99% of the DOP when they are tested in-place in accordance with Regulatory Positions C.5.a and C.S.c of Regulatory Guide 1.52 Revision 2 March 1973 while operating the ventilation system a a flow rate of 32,000 cfm + 10%.
~
,.. y - r ~
, - ~~.,,
m/ 3,
y 3.derifying within 31 days after removal that a laboratoryA analysis of a car d9 d ef ae
> adsorbers-demonstrates a removal efficiency of >J0Vfor I
vN radioactive methyl-iodide when the sample,R.H.).
is-tested in 3
I accordance with ANSI N510-1975 (30 C.-95%
The carbon
)
4 'M g samples not obtained from test 2 cant 5ters shall be prepared by /
U u g'
(
emptying a representatiye-satiple froni'an-adsorber test tray
)
\\
section, mixing the-adsoruent thoroughly, a~nd-obtaining
/
f samples at least'two inches in diameter and with a' length
/
\\ equal,to-ths thickness of the bed. Successive samples will)
T bor,emoved from_different_ test tray sections, f
~_s
~ ~ __-
u
~ _.s s
4.
Verifying a system flow rate of 32,000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.
i I
CALVERT CLIFFS - UNIT 2 3/4 9-16 Amendment No. 149 i
l
3/4.9 REFUELIWiJPERATIONS I'
SURVEILLANCE REQUIREMENTS (Continued) 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:
,,- my-xr Verifyingwithin31daysafterremovalthatafaboratoryanalysitN f[.
%c e/
( of carbon-sample demonstrates a removal efficiency ofw90ffor
/
~
Ri. i 1.
radioactive methyl' iodide _ when the sample isjestel in accordance s
L,v y' with ANSI N510-1975 (30 C,'95%-R.H.).
Samples are prepared by
)
emptying a representative sample-fr6m an-adsorber test tray
')
,,/3 e section, mixing the adsorbent thoroughly, and ' obtaining samples J
/
Successive samples vill be removed from")
at least two inches 1n diameter and with a length equal'to-the_
(
thickness-of'the bed.
sI dffferent test tray sections
_j
_f y
Subsequent to reinstalling the adsorber tray used for oLtaining the carbon sample, the filter train shall be demonstrated 0?ERABLE by also veri'ying that the charcoal adsorbers remove 199% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with Regulatory Positions C.5.a g
and C.S.d of Regulatory Guide 1.52 Revision 2 March 1978 while l
operating the ventilation system at a flow rate of 32,000 cfm i 10%.
d.
At least once per 18 months by:
1.
Verifying that the pressure drop across the combined HEPA g
filters and charcoal adsorber banks is < 4 inches Water Gauge while operating the ventilation system at a flow rate of 32,000 cfm i 10%.
Verifying that each exhaust fan maintains the spent fuel storage pool area at a measurable negative pressure relative to the outside atmosphere during system operation.
e.
After each complete or partial replacement of a HEPA filter bank by verifying that the HEPA filter banks remove t 99% of the 00P when they are tested in-place in accordance with Regulatory Positions C.5.a and C.S.c of Regulatory Guide 1.52 Revision 2 March 1978 while operating the ventilation systein at a flow rate of 32,000 cfm i 10%.
CALVERT CLIFFS - UNIT 2 3/4 9-17 Amendment No. 149
INSEllT A Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained from an adsorber tray or from an adsorber test tray in accordance with Regulatory Pos; tion C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, demonstrates a removal efficiency of 2 9595 for radioactive elementaliodine when the sample is tested in accordance with ANSI N510-1975 (130*C,95% R.li.).
INSERT 11 Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained from an adsorber tray or from an adsorber test tray in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, demonstrates a rernoval efficieng of 2 9096 for raptoactive. methyl iodine when the sample is tested in acconlance with ANSI N510-1975 (30 C,95% R.II.).