ML20064C511
| ML20064C511 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 10/16/1978 |
| From: | Parker W DUKE POWER CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7810200068 | |
| Download: ML20064C511 (2) | |
Text
_ _.. _. _...... _. _ _ _ _ _ _ _.
DUKE POWER COMPANY Powra Bunstwo 422 Socra Cucacu Srazzi, CaAntoriz, N. C. asa.aa wi w Au o. emanca.sa.
October 16, 1978 f
vice Pats 6ormt TEL neonc Anta 704 Seta e PaooucTiose 373-4083 p.
.~
il f,
Mr. Harold R. Denton, Director
. =
Office of Nuclear Reactor Regulation
( ',i -
U. S. Nuclear Regulatory Commission Washington, D. C.
20555 3
Re: McGuire Nuclear Station Docket Nost 50-369, 50-370 s
N. j
Dear Mr. Denton:
The activated charcoal to be used in the Nuclear Safety Related Air Filtration Systems at McGuire was purchased to meet or exceed the acceptance criteria of Regulatory Guide 1.52, Revision 0 which was in effect at that time. At this time the draft McGuire Technical Specifications require that the charcoal meet the testing criteria of Regulatory Guide 1.52, Revision 2, March, 1978. Since the charcoal which is presently on-site does not meet the requirements of the Technical Specifications but does meet the acceptance criteria of Regulatory Guide 1.52, Revision 0, it is requested that a limited exemption be granted which would allow the charcoal now on-site to be used. All replacement char-coal will meet the acceptance criteria of Regulatory Guide 1.52, Revision 2, March, 1978, thus meeting the requirements of the McGuire Technical Specifica-tions.
The charcoal now on site is Sutcliffe-Speakman 610 (K13 Impregnated) and meets or exceeds most of the minimum acceptance criteria as defined in Regulatory Guide 1.52 Revision 2, March, 1978. The only criteria that is not fully met, as can be seen on the attachment, is the Radioiodine Removal Efficiency, Methyl Iodine removal for a 2" bed at 25 C and 80 C, 95% relative humidity (5a and b).
Due to the similarity in test methods (Regulatory Guide 1.52, Revision 0 to Revision 2), the relatively minor difference in acceptable test results and the length of time the charcoal will be used before replacement, it is our position that using the charcoal now onsite would not jeopardize the health and safety of the public.
3 V ry truly yours(~'
&. L William O. Parker, Jr (p
GJP:scs h
l O
\\
g rio D.o ou b8 A
\\
r
COMPARISON OF SUTCLIFFE-SPEAKMAN 610 CHARCOAL (K1~3 IMPREGNATED)
W/ REGULATORY GUIDE 1.52 REVISION 2 REG. GUIDE 1.52 REV. 2 SUTCLIFFE-SPEAKMAN 610 TEST TEST METHOD ACCEPTABLE RESULTS TEST METHOD RESULTS
- 1. Particle Size Distribution ASTM D 2862 RET
- 6 0.0%
Same RET MAX
- 8 5.0%
0.1% (4.5.5)
THRU/ RET 40 to
- 8 #12 60%
59.4%
THRU/ RET 40 to
- 12 #16 60%
39.2%
THRU MAX
- 16 5%
1.0%
4 THRU MAX
- 18 1%
O.3%
- 2. Hardness No.
RDT-M-16-IT-Appendix C 95 (Min.)
Same 98
- 3. Ignition Temperature RDT-M-16-IT Appendix C 330 C (Min.) @ 100FPM Same 365 C 4 Activity RDT-M-16-IT 60 (Min.)
Same 77.3
- 4. Activity CCL Appendix C
- 5. Radiciodine Removal Eff.
- a. Methyl Iodine 25 C/95% RH RDT-M-16-IT 14.5.3 Except RDT-16-M-IT @
98.726%/2" BED 95% RH Air 99%
100 F/95% RH 99.984%/4" BED
- b. Methyl Iodine 80 C/95% RH RDT-M-16-IT 14.5.3 Except 80 C 95% RH (Pre & Post Sweep 99%
RDT-16-M-IT @
97.695%/2" BED Med 25 C) 110 F/95% RH 99.979%/4" BED
- c. Methyl Iodine in RDT-M-16-IT 14.5.4 Except For N/A - No Filters Containment 2 hrs. @ 3.7 ATM 98%
in Containment
- d. Elemental Iodine Savannah River Project 99.9% Loading Same 99.97% Total Retention 99% Load + Elution
- 6. Bulk Density ASTM D. 2854 0.38 g/ml (Min)
Same 0.496 g/ml (Bulk) 0.43 g/ml (Apparent)
- 7. Ispregnant Content State Procedure State Type Stucliffe-Speakman t
(Not to Exceed 5% By No. 161 4.56% K13 1
WGT) g lg
- The removal efficiency tests were different for 1.52 Rev. O and 1.52 Rev. 2 The testa and results on Sutcliffe-Speak-l;
- man charcoal are according to Rev. O and are in compliance with Key. 0 l
e
-