ML19246A370
| ML19246A370 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/14/1975 |
| From: | BURNS & ROE CO. |
| To: | |
| References | |
| PROB-750314, TM-0637, TM-637, NUDOCS 7906180664 | |
| Download: ML19246A370 (4) | |
Text
{{#Wiki_filter:. TMI DOCUMENTS TM-0637 DOCU'ENT NO: 1 /h 6i k h COPY MADE ON Of DOCUMEITT PROVIDED BY METROPOLITAN E ISON COMPANY.
- 4 Supervisor, Document Control, NRC f
7 90 618 0 6Gy 228 300
h/',,,,,, .GPU SERVICE CCRPORATION 3 M EM O RAN D C' .c. .........,c.~........u,.,c-.._, sr/ coe w es 260 Cherry HJI Road Parsippany. New Atsey 07C54/2J1-539 7808 N /7 o ),-./ ~; ~ [' h ~~' d} (4(;D. ~<-{ qj. ,v] +' d ~ f n l 'l 1 s yf,.' V, O '. t (dg!,u W '. j t .\\ "j); -,=- -. February 25, 1974 l S&L-2267 s TO: Mr. R. Edelman Mr. J. G. Herbein Mr. C. R. Montgomery Mr. J. P. Moore Mr. N. C. Trikouros
SUBJECT:
AEC REGULATORY STAFF POSITION PAPER ON CHARCOAL FILTER INSTALLATION AND TESTING k' The enclosed Regulatory Position paper was recently received and is quite current. It is forwarded for your inforcation and utilization on your current projects. As stated in the fi::st paragraph, the design aspects are not being applied retroactively bu: I F.tlieve changes to Technical Specificationgg eventually _ be suggested _to make testing of filters contorm to this position. ~ btt_. T. M. Crimmins, Jr. Safety & Licensing Manager TMC/ab Enclosure cc: Mr. J. R. Thorpe 228 301 ~.
~ 3 OO1 [ THREE MILE ISLAND UNIT NO. 2 ~.' BUPNS & ROE INC. FIELD QUESTIONNAIRE NO. NO - /Y - 75~ DATE / J b/ O[L ) M M NO. O. .0 SYSTEM / .0
REFERENCE:
J V .1 Flow Diagram or Engr. Dwg. No. 7c. Y y_ [A% 3 /,lc /1,t/) c _,/.2 2 y 3 [E//, d /c[y, //# V .2 Elem. Wiring Diagram No. ~ .3 R. O. or Specification No. .4 Other .0 INQUIRY SOURCE: N General Question Drawing Clarification R CD Test Result M Equipment Clarification LKJ M Test or Oper. Procedure Anticipated Problem Q N Immediate Action Required R N .0 QUESTION Problem: Q c{ $kt c Yo' chr in cb c c. j'f f & Q /'/z,- fc.,J ec S tem c4 I b (m 51 bno " * ' ' '"* / ' 'l oh y y_j f,.,. B (dy & G u:f Glhe< <a ll G l de lin In ci c{'C i. ,e /, ./. /. .// ~ j; the U r LL J L / O rn p ooraen us r.Cin. o r. o.i g.jf,] 7 -.. a m m.1 reyv o Organiz'abon[N/e/ E-l' 1 Individual Initiating Question: Name
- 8. C. $'e p/s, e
Organization Serial No. /3/o .O ANSWER: h! ii $P&fSC 's os., y, e.> - 2. t s /e i 3 / o,trr.- 2 x^2 L.5 / o wa s m / !.. , 3. 3.h i a ON T. .3 9 .+ fy t 4 -s~ 'h *
- Q.
V 4 ^ ~ g M[, N 2 /w W{ W L hW 'I .1 Date Comple ed BLR Engineer .2 Follow-Up Action teqVd. by B&R Home Offi6e: O Yes W o By .3 Follow-Up Action completed: Date. B&R Engineer ECM PCN - OPIES: .W. licward,Jr. R.W. Bensel D. Lambert FCR ~ ..J. Toole (2) G.P. Miller J.P. Fleming D.T. English .E. Wright J.G. Herbein W.C. Sorr.er G.T. Harper .T. Gunn Unit #2 Shift R.P. Brownewell R.J. Dobbs (2) Foreman T.R. Block W.R. Cobean B&R Cog. Engr.
k' "MEB AEC REGULATORY STAFF POSITION PAPER CidaCCAL FILTER INSTAL:ATION AND TESTINC" It is the Staff's generic position that charcoal filter installations with bypass flow arrangements are unacceptable since coisture entrainn.ent on the absorber =aterial vill cause bloc;mge and result in preferential '75/ flow through the bypass. The reduced flew through the absorber could be ,/',- V below that required to =cet miniaun safety standards. The Staff, therefore, vill require, starting with the Indian Point Unit No. 2 facility, that the bypass be elicinatad f rca the filter design and replaced with additional $UAA-charcoal trays. /p<< Details of Recuired Charcoal Filter Tests / ,/ (The tests presented below ref er to in-containment filt er systems, standby gas treatment systems, fuel-handling building systess and control room systecs as noted for each test. Whe: c no note appears, that section is equally applicable to all of the above.) Item 1 Adsorber Efficiency Test ~ Re=ove cne charcoal tray frc= the system and install a a. replacement. a b. Empty adsorbent frc= one bed of the removed tray - mix adsorbent thoroughly. a T'ke from the mixed adsorbent not less than two sa=ples. c. a Each sample will be two inches or greater in diameter ' ' ~ ~ and of a length equal to the thickness of the adsorber bed from which the adsorber was captied. d. Samples will be tested for retention of methyl iodide. Testing will be performed at 95% relative huaidity cnd 250 F vith inlet methyl iodide concentration of at least 3 10 mg/m and a f ace velocity of 40 f t/ min. (for SGTS 70% relative humidity and 190 F,1 =g/a 40 ft/ min; for 3 Fuel-Handling Filters 95% relative huaidity, 130 F, 3 0.1 mg/m and 40 f t/=in; for Contrcl Room Filters 95% relative hu=idity and 130 F, 0.1 cg/m3 and 40 ft/ min.). If test results indicate methyl iodide retentien of less c. than 85% (for SOTS 95%; Jar Fuel-Handling Filters 90%; for Control Roca Filters 9C%), all adsorbent in the system shall be replaced with an aascrbcnt qualified to Table 1 of Regulatory Guide 1.52. _ Item 2 . Uniformity of Air Flev Test Each HEPA and Adsorber vill be tested with a pitet tube traverse or the equivalent to de=cnstrate that air distribution is unif er within 2C%.
s " s,,, I'cm 3 Air Deficiency Test Flow must be de=onstrated within 10% of the specified flow. Item 4 HEPA Penetration Test This test =ust be$ performed using DOP in accordance with ANSI N101.1 with a minimum retention of 99%. This' test cust be perfor=ed on the filter unit "as is" prior to repaits to holes, etc. If the filter unit does not__. ~ neet the acceptance criteria, it cust be replaced and the entire system retested. Item 5 Adsorber Penetration Test This test cust be performed with Freon in accordance with the Regulatory Position C.S.c of Regulatory Ouide 1.52. The acceptance criterion is no more than 1% Freon penetration. Item 6 Total System Bypass Test This test is to be performed by introducing DOP at the inlet. The exhaust is to be ceasured with an acrosol photometer in accordance with ANSI !i101.1 with an acceptance criterion of no core than 1% of the inlet concentration. 1 Item 7 Each redundant unit of the system uill be operated individually for a period of not less than 10 hours per month. Item 8 At least quarterly, inspections will be conducted of loop seal drains to determine water level. Item 9 Test Frequency Repeat annually Tests 1, 2, 3, 4 and 5. a. b. Repeat tests as appropriate af ter repairs, replacements, or painting or other chemical release, etc. in venti-lation zones. Repeat-Tests 1, 4 and 5 whenever a unit of the system c. has accumulated 720 hours of operation since the latest date of any of these three tests. 228 304 k b t .}}