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Text

in Place Testing of Hepa Filters & Iodine Adsorbers, Effective 750321
	ML19318C086
Person / Time
Site:	Palisades
Issue date:	03/11/1975
From:	; CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	;
Shared Package
ML18045A283	List: ML18045A282; ML19318C076; ML19318C086;
References
	NCS-375, NUDOCS 8006300530
	Download: ML19318C086 (12)
	v • d • e

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                                                                                             - PROCEDURE                                                       ,                       -

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    ;                                                                                                   FOR
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f,.* w IN PLACE TESTING OF HEPA FILTERS .

1 4 { . AND IODINE AD30RBERS ' '

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MARCH 11, 1975

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NUCLEAR CONTAINMENT SYSTEMS, INC.

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                       ..                                                      COLUMBUS, 01110                              43219
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REVIEWED BY ~/' .-/t IN-PLACE TESTING - _

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                                                                    'f                                                        El'FECTIVE DATE 3121/75
                                                                                                                                                                                                         '

d,. , APPROVED BY h Y g e,t. J REVISION NO.t 8/22/75 I _

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SCOPE

1. 0 This procedure covers the in-placing testing of the liigh Ef ficiency '

Particulate Air (llE?A) filters and Iodine Adsorber filters. . .

                                                                                                                                                                                                   ,
                                                                                                                                                                                                                      .

s STANDARD , r, -

2. 0 This procedure complies with ORN(,-NSIC-65, " Design, Cons t ruc tion,.

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                  >                               and Testing of IIish-Ef ficiency Air Filtration Systems for Nuclear

Applications" and ANSI N510, " Testing of Nuclear Air C1 caning '

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Systems", and in accord with ANSI 101/1 and Regulatory Guide 1.52.

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VISUAL INSPECTION A' - ..a .

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3.1 A visual inspection of the components or subsystems to be tested,.

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               \_.                                 their holding devices, gaskets, housing, and all components shall

{ ,s cy , he made before any leak test. - ,-

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3. 2 Complete a visual report, NCS Form No. 1 attached to this NCS-375 ,.

pr,ocedure, page 6.

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EQUIPMENT & SYSTEM TESTS

                                      .4.1 Testing of IIEPA Filter Banks.
                                                                                                                      -
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Perform the following steps on the high efficiency filter systems listed below and attach a completed test report for each filter .m -

system to this procedure. ,

4.1.1 ~ Establish ai[ flow through the' filter being tested. Measure and . record the resistance across the filter bank. . 4.1.2 Connect the penetrometer sampling line to upstream sampling port . and calibrate it against its built-in standard in accordance with

t,he manufacturer's instruction. 2~ ' 4.1.3 For an' acceptance test of a new system, check the background dust concentration upstream and dounstream of the filters; the bdck-

[

 -                                                   ground dust concentration shall be Icss than 257. of the expected aerosol concentration during the test.                   .r                                    -

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r. 4.1.4 Connect' the DOP generator to the injection port. 1 Start the injec- -

' -

tion and adjust the generator as necessary. T

  )                                     4.1.5        . Connect the penetrometer to the upstream sample point, allow it to
 "                                         -

stabilize, and adjust it to read 507. or higher on the lowest sen-sitivity . scale, readjusting the DOP generator as necessary. Record

            .
                                             -

7 the upstream reading. It may prove in larger systems a lower or 1f i s

                                                    'different scale reading is necessary to establish an upstream reading.

T. 4.1.6 Connect the sampling line to the douastream sampic point, allow 1%. the photometer to stabilize, and record the downstream reading. ,

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l Nb . 4.1.7 Repeat steps 5 and 6 and record the new readings if different. 'If if significant dif ferences occur, recheck until the readings remain ' +

constant within about +57.. Use the final constant readings for cal-

s -

culating the Icakasc. -

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4.1.8 Calculate the leakage from the equation: ~' K 1 (f-4

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                                      &                               7. Leahage                       where L = 100 Cd                      '
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N DE bdhf. kf7; /? ?.'Odm - dounstream cunpentration; from photometer reading

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if ntrati n; fr m ph t meter reading

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CC up e lw 4.1.9 If the Icah'a'ge'-in-3cca.ter than t to specified value of Section 5.0,

     .U'-                                              scan the downstream faceTEirc ank as follous:
      ;.

a. Connect a sampic line to downstream sampic port and adjust the

, . .g penetrometer to zero uhen set to the most sensitive scale, y^ N" - b. ' Disconnect .the sampic line from the downstream sample port and

        ;                                                      attach a scanning probe. Traverse the downstream side of bank l .j..x.-                                                      ,'at a rate of about 10ft/ min. with the probe held about 1 to 1 1/2
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a inches from the section to be checked. It is reco.wacnded that the seal between the counting frame and the housing be scanned ' first; then the peripheries of the individual filters, and . finally the cores of the individual filters. .

                                                                                                                                             '                                                          '

c. A Icak is indicated by a sustained and reporducible deficction of the meter needic uhen the probe is held at the point in question .

on one scale division or more. .

d. Mark the indicated Icaks. - Af tpr necessary repairs or filter .

replacemen,t, rctest the system in accordance with Steps 1 thru 8. .

.,

4.1.10 If the llEPA filter system contains more that one bank of filters, each bank must be tested individually. Complete a separate test report for t.

         '.                                              each bank.                                                   ,-                                                      ~             .
                                                                                                                                           '
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 -                                     4.1.11 Close system after testing. '                                                                              .
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a. Disconnect all sample lines.

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b. Seal all injection and sample ports. .

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'} c. ' Notify designated plant personnel that test is completed and system '

may be put in normal operation.

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  !                                    4.1.12 Complete a t'est report, for each HEPA bank on NCS Form No. 2, attached                                                                                       .

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  ;                                                       to this procedure page 7.                                                                                                                              -
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   ;                         '4. 2    Testing of Iodine Adsorber Banks                  ,
                                                                                                               .

Perform the following steps on each iodine adsorber bank listed' below and attach a completed test report for each, bank to this i procedure.

4.2.1 Each iodine adsorber shall be inspected individually for any -

[ visibic damage prior to testing.

                                                                                                                          -
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4.2.2 Establish air flow through the bank. T l 4.2.3 Conhect the sample lines to upstream and downstream sample points,

establish detcetor operating conditions used in their calibration, establish . upstream dilution-air rat o to produce an upstream con-centration at the tracer gas detector which is within the linear

   )J                                  response range.
                                                                          ' .                        .
                                                                                                            -

4.2.4 Take upstrena background samples and downstream background sampics , {g ,(5 minimum for noncontinuous detectors). If these show no back- .

ground contaminants that might interfere with the test results,

    ;                                  continue with the test. If downstream interference;is too great to                    .
                                                                                                                                   -

1 obtain a base line, purge the bank at rated system air flow for 8

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to 12 hours, or change tracer gas.

     !                        4.2.5    Estimate the tracer gas transit time from the generator on through                        ,
 ,  i                                  the injection port and system to the detector. Start the injection and after the estimated transit time, monitor the upstream concen-7                                 tration. The time when the initial tracer gas is detected is des-j                                  ignated as time zero tracer gas R-11.
                                                                                            .
    .-*                       4.2.6    Calculate the Icakage for cach time interval from the equation:
       '
     '
                                                   % Leakage                          Where L = 100 gd_
                                                  ' with L = % Icakage                                   Cu r-                                                                                                                           "

5 Y ~ Cd = Downstream concentration I Cu = Upstream concentration W' Plot penetration vs. time and extrapolate curve to time zero. . . . 3, . ~ If the leakage obtained from step 6 is greater than the value

[. 4.2.7 specified in section 5.0 of this procedure, locate and repair any ,

      ,.                               Icaks, then retest.                                    _
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l L4.2.8 Close system after testing. . .

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       ,                               a. Disconnect all sampic lines.
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          'l                           b. Scal all injection and sampic ports.

1,N c. Notify designated plant personnel that tent is completed and -

system may be put in normal operatLon.

4 -

       ;                        4.2.9   Conplete a test report for cach adsorber bank, on NCS Form ho. 3,

(/ attached to this procedure, page 8. '

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ACCEPTANCE CRITERIA 5.1 Each IIEPA filter bank, except for those specified in step 5.3, shall have a miximum Icakage of 0.057. (cf ficiency of 99.957.) or as specified by the Contractor, based on the actual number of ,particules that pen-ctrate the filter when using the polydisperse acrosol, gen'erated from a liquid DOP having a particle diameter of 0.75 + 0.50 micron. ,

5.2 Each iodine adsorber bank si'all have an in-place maximum leakage of 1.07. (ef ficiency of 99.0%), or #a s specified by the Co tractor, based on the differential zero time concentration of the upstream and down-

 .                                        stream sampics. It is understood that the test shous only acchanical i-                                       Icak and does not- represent actual clemental iodine of methyl iodide                             ,
                                                                                                                                              ,
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removal efficiency. , , f i

                                  -5. 3 The Sample Rack filters and Fume Hood filters shall have a masimum Icakage of 57. (efficiency of 95%) as specified by the DOP test in
       .                                  Step 4.1.
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(- , NCS FORM NO. 1 Rev. O

VISUAL INSPECTION OF FILTER SYSTEM .

                                                                                                                                                                               .
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CUSTOMER Purchase Order No. J

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SYSTEM

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  '                                    ' NUMBER OF FILTERS                                                                                                       .

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    !                                    INSPECTED BY                                                                                                         ,

1 NUCLEAR CONTAINMENT SYSTEMS, Ii;CORPORATED

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I;p7 ' Mounting Frames '

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                                        ,/     /     a. Continuout seal wcld bett cen nembers 'of frcme and between frama                                          _-
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' M /; .. / / b. S tructural rigidity. -

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I" '/ / c. Squareness of medoers, flatness and condition of component seating , , ,f4 surfaces.

...

/ / 'd. Damage to frames.

Filter Clamping Devices or_I!oltq

     ,_                                 '/_/         a. Proper adjust = cat (30 to 807, gasket compression all around)

.l (tighten if less). ,

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                              / / . b.                 Suf ficient number of adequate size to produce 50 to 807. .

gasket compression.

                                                                                                                                                           ~
                              / /            c.         Individual clamping of filter (adsorber) cells.
                              / /             d.        Proper condition of clamping devices (eg., .all nuts in place and tighteneC.n                                                                                                                        ~
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                              /     /          e.       Adequate cicarances between filter (adsorber) cicmonts to tighten clamping devices op all sides.
                              / /              f.       Full penetration and freedom from cracks in ucids of clamping                                                                              .

devices. . .

.

                                                                                                 ' *'

. HEPA Filters .

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f11'ter media (tears, cracks etc. - some damage to

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                                                                                                                                                                                     -

-

                              / /              a.       Damage tt separ- ; prs is permissible), case, case corners, on both                       - N face's                                 '

j

of filters. ~

                                                                                                                                                                                             ,
                                                                                                                                                                                                 '

i -

                                                                                                                            '
                                                                                                                                                       .
                                                                                                                                                                          ,
                                                                                                                                                                                          -
                              / /              b.        Damage to or linpre; '- -S t-ing of gaskets.                                                                       ,

. '

                                                       ' Burns of media or case from cutting or, welding on both faces l                              /     /         c.
                                       .                 of filters.                                                           ,

t

                               / /             d.        Exces'sive dirt loading (check gage shouing pressure drop across
)

filters). .

  ;                                                                            .
                  '

Prefilters

                                                                                                                                 ,
!          ,                   /      /         a.       Damage to media, case, or gaskets.

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                                                                                                                                                             .
                                                                                                                                                                               .
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                               / /             b.        Excessive dirt loading.

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                  - v {. .m/  ; ,.              n.       Damage to cells, includLng burn.3 from welding or cutting opera-                                                              -

3

i. tions in housing.

p(:a ' b, .. '"

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                                /'*;,/ . b .3             Individual clamping.                                                                                              '

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                                       /'ceb Condition of clamping devices.                             .
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                                                                                                                                                                      '

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                               ./        \ . $F,. ,.Co,n   .;     ition of gaskets.                                                                          .
                                                       .g
                                                               =g     g Ld3htligh \
             -

w..s s

                                                                    .
                                                                                               -

J/ / a. ti quift ,{op visual inspection of hou:ing nad cor.poacnts.

                                                                        .
    '.'_                         / /            b.        All je' s lit (replace if out).                                          j
                                                             ~

CONM03.ED COF5 .

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                              / '/    c.      Penetration of mounting frame by power or control conduits.
                              / /     d,      Vapor-tight globe, guard to protect globe from physical damage.
                                                                                                                                                              .
        .x
        >

Housing .

                                                                                                                                                    .
                                                                                                                                                       .
      ,                       / /     .t . Adequate ' space for personnel and equipment for maintenance,                                        .

testing. '. - . $' / / b. Reasonabic access to housidg.

                               / /     c.      Space adjacent to housing amenable to isolation as a contan-ination zone, adequate space for temporary storage of clean
                                                                                -

p{ ,

                                              .and contaminated filters during filter change.               -
                                                                                                                                                         .
                                                         -
.

d. Doors of rigid construction with adequate seal between door

}~'                           ./ /

and casing; doors opening outward on negative-pressure housings. A I / ./ e. . Adequate latches on doors, with provision for opening from - 1 inside and outside of housing and provision for locking.

Adequate sills. '

                                                                                                                                                 ,
                                                    -

z- Adequate structural rigidity to resist undue ficxure - rein-

.'

f / / f. forcing members on ou. side, preferably.

                                                                                                                          -
                                                                     -

n

                                / /     g.      Acces's to upper tiers with permanent service platform at approx-lla                                             imately the 6-foot Icyc1 - adequate, permanently installed ,                              ,
               ,
                                               . ladders.
 ?
 'I                             / /     'h.      Adequate cicarances between banks of components, with door on each side of each bank.                                                                            .

T

                                 / /      i. No back-to-back banks of. components.                            .

} .

   .. F                          / /      j.      Proper location of tracer injection and sample ports, k                            / /      k.      Adequate guards on fans located inside of housing.                    -

r. .

- ilousekacping in and around housing.

                                                                                                              >
      '
                                ./ L/      1.                                          ~
    .
                                 / /       m.      Condition of flexibic connection between housing.and fan external
   =-                                              to housing.

4

        *
                                  / /      n.      Fan-shaft seal.

[~ / / o. Accquate dampers to prevent intake of air from adjacent housing 4

      .
                                                  .or pienen during test, and to prevent bypassing of systca.         ,
                                  / /      p.      Freedom from corridors, plenums, conduits, cicctrical, connections,
        .

plumbing, drains or other conditions that could result in bypassing

( *

                                               , of the system, cany of which are not immediately apparent.
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                                                                              -Dampers
                                                                                                                                                                                                   .     .
                                                       / /                     a.        Damage to or distortion of frame or. blades.

(

                                                                                                                                                                                                                 .
                                                       / /                     b'. . Bent pivot pins, operator.
                                                                                                                                                                                                                                         .
                                                       / /                      c.       Missing seats ox-blado edging.                                                                      l
                                                                                                                                                                                                                                                        .
                                                       / /.                      d.      Condition of resilient seats or cdging.
                 .
                                                                                                                                                           -#

Drains

'
                                                        / /                      a.       Each section has a drain, y;;                                                                                   ,
                                                                                                                               .
                                                                                                                                            .
                                                                                                                                                                                                 ~
                                                                                                                                                                                                                                       *
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                                                        / /                      b.      Shut-off va'1ves for cach drain.
                                  -
                                  .
                    '

L2' / / c. No two sections with common pipe connection. ,

'

                                                         / /                      d.      All drains closed during in-place testing of filter ban'ks.
  -
                                                                                                                                                                                                                                           .
                   .
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NCS FORM NO. 2 Rev. 1 ,

                                                                                                                                                                                      .
                                                                                                                                                                                     .

PARTICULATE FILTER IN-PLACE LEAK TEST REPORT

                                                                                                                                                                      - .
                                                                                                                                                   .

CUSTOMER Purchase Order No ,

LOCATION

                                                                                                                   .
                                                                        '                                                                  -

SYSTFlt -

                                                                                                                                                                                               .
       .

4e '

NIDIBER OF FILTERS

       ?'
       >                                    'FLOM                                                                                                                                                                        ,-

i .

       .                                      AP llEFA FILTERS                                                                                                                                                             1
       .I, i                                       FILTER TYPE
 '

i DATE OF TEST - - V'lf Q % LEAKAGE % EFFICIENCY (DOP AEROSOL) TEST RESULT .

        ,.                                         .

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        !
        ~

REMARKS -

                                                                                                                     -
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                                              ' TEST PEREORMED BY                                                     _ _ _ _ _              .
                                                                                                                                                                                .

3

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   -

_g,- NUCl. EAR CONTAIN> TENT SYSTEMS, TNCORPORATED

{~ - DATE ,,_ , _ ,_ __ . __

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                   .,             i-                                                                        .
                                                                                                                      .

NCS FOPJi No. 3 REV. 1

IN-PI. ACE -

CilARCOAL ADSORBER FILTER I.EAK TEST REPORT , .

                                                                                                                                                                                                    . .
                                  .
                                                                                                                                                                                                          '

CUSTOlfER Purchase Order No

__ ,

                                                   .
                                                                                                                                                                                                       .
                                                                                                                                                                                                     .
                 ,                                                                          .                                                                                                                                    -

LOCATION

                  ~
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                 , , .-
                         .-                   SYSTDI                                                                                                                                                                           ,
                                                             ,                                     ,
                                                     .                                                                                                                                                    ,
                                                                                                                                                       ,
                                                                                                                                                                            -

NUMBER OF FILTERS ,

                                                                                                                                                                                                                            -
                        .                                                                                                                                               ~                                 ,
                                                                                 '
                                                                                                                                                                                                   ' '
                                           . FLOW
   '

' . AP Cl!ARCOAL ADSORBERS ,

                                                                                                                                                                                                         -
                                     -

FILTER TYP'E , .

   .
   ;                                           DATE OF TEST
   ,
    ,                                          TEST RESUf.T                                                      .% LEAKAGE                                            % EFFICIENCY
, ,
    -
                                                                                                                                                                                        .                                                     .

R$ MARKS

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_ _ _ _

TEST PERFORMED BY . - - . - . . _ -

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NUCI. EAR CON TAT. N.M.E. N,T., SYSTEMS,, INCORPORATED-

' DATE - .._ _ .- _ .-- ,

                                                                                               -
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aN 3.gy,

                                                          -
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                                                                                   .

COMTROUJcD COP.% . .

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