ML20113D169
| ML20113D169 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 07/24/1995 |
| From: | Freeman W, Keller T NUCON, INC. |
| To: | |
| Shared Package | |
| ML20113D150 | List: |
| References | |
| NUDOCS 9607030045 | |
| Download: ML20113D169 (5) | |
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PY-CEl/NRR-2067L Attachm2nt 2 Page 3 of 6 NUCON International, Inc.
OtTS$"On l(,yd.84!57';
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P.O. BOX 29151 7000 HUNTLEY ROAD TELEX: 6974415 COLUM8US. OHIO 43229 U.SA.
FAX: (614) 4314858 i
s PYROLYSIS GAS CHROMATOGRAPHY ANALYSIS OF 5 THERMO-LAG j
FIRE BARRIER SAMPLES Performed For:
l Cleveland Electric Illuminating Company 10 Center Road i
N. Perry, OH 44081 l
P. O. Number S138224 l
t i
24 July 1995 l
l Distribution Perry:
Mary D. Makar (1) Mail Zone A170 1
NEI:
Biff Bradley (1)
NUCON:
06C0926 Master File (1)
Lab (1)
NUCON 06C0926/01 r
9607030045 960628 PDR ADOCK 05000440 P
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PY-CEl/NRR-2067L Attachm'nt 2 NUCON 06C0926/01 Page 4 of 6 NUCON internationol. Inc.
TELEPHONE: (614) 846 5710 OUTSIDE OHIO: 1-800 992-5192 P.O. BOX 29151 7000 HUNTLEY ROAD TELEX: 6974415 COLUMBUS. OHIO 43229 U.S.A.
FAX: (614) 431-0858 c]
i Prepared By Reviewed By Original Issue W(d<Lan M.V W. P. Freeman T.
eller l
.2. 5 J u l, 144 i a5 L\\.,nss Date Date 1
PY-CEl/NRR-2067L Page 5 of 6 NUCON 06CO926/01 I.
ABSTRACT Inspection of the pyrograms of 5 Thermo-Lag fire barrier samples indicated that they are all similar in chemical composition.
II.
OBIECTIVE Pyrolysis Gas Chromatography (PGC) with Mass Selective Detection (MSD) was used to qualitatively compare five Thermo-14 re barrier samples.
fi IIL DESCRIPTION OF METHOD The samples were compared by pyrolysis gas chromatography using ASTM D3452 as is general guide. A Hewlett-Packani model 5890 series II gas chromatograph equipped with a Hewlett Packard model 5972 mass selective detector was used to generate chromatograms of the pyrolysis products. Pyrolysis of the Thermo-bg samples were performed with a CDS pyroprobe mounted in an independently heated interface attached to the injection port of the GC. Analysis involved weighing 1-3 mgs. of sample in a quartz tube and placement of the tube in the platinum coil ele. ment of the probe. The piobe is then placed in the interface and pyrolysed ballistically for 2 seconds. Pyrolytic products are then swept by the carrier gas onto the fused silica capillary column where they are separated and detected with a MSD. Chromatographic and pyrolysis conditions am shown in Table 1. Prior to each analysis, the column is heated to 250*C to elute any volatiles which were not entrained in the polymer.'
IV.
PRESENTATION OF RESULTS The five pyrograms (total ion chromatograms) for each of the five Thermo-Lag samples are shown in Figures 1, 3, 5, 7 and 9. The extracted ion chromatograms using the acrylate base ion m/e of 55 common to ethyl acrylate (EA) and m/e of 69 common to methyl methacrylate (MMA) for each sample am shown in Figures 2, 4, 6, 8 and 10. The sample name at the top of each figure is the NUCON Log # I. D. Samples 0695-14 A-E are further identified in Table 2 along with their mspective EA/MMA area ratios. Each set of figures is followed by a library search, whi:h identifies some of the major peaks from each sample's pyrogram, and a summary area percent report.
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PY-CEl/NRR 2067L Attachmrnt 2 Page 6 of 6 NUCON 06CO926/01 V.
DISCUSSION OF RESULTS l
The average extracted ion area ratio for EA/MMA of 1.18 0.07 ( o) shown in Table i
l 2 is consistent with the average area ratio of 1.3 i0.2 (i20) obtained from other Thermo-1.ag samples tested under the NEI generic testing program.
l The extracted ion chromatograms shown in Figure 2 for sample 0695-14A, a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> rated conduit sample, have an EA/MMA ratio of 1.21. Pyridine compounds identified in the pyrogram (Figure 1) are 3-methyl pyridine. Other key components identified are 2, 3, 4, 5-tetramethyl-lH-pyrrole, pentanedioic acid diethyl ester, octicizer and tris (methylphenyl) l phosphate.
l The extracted ion chromatograms shown in Figure 4 for sample 0595-14B, a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> rated l
panel sample, have an EA/MMA ratio of 1.28. Pyridine compounds identified in the pyrogram are 3-methyl pyridine (visual inspection). Other key components identified are 2, 3, 4, 5-tetramethyl-lH-pyrrole (visual inspection), pentanedioic acid diethyl ester, l
l octicizer and tris (methylphenyl) phosphate.
De extracted ion chromatograms shown in Figure 6 for sample 0695-14C, a trowel grade l
sample, have an EA/MMA ratio of 1.11. Pyridine compounds identified in the pyrogram (Figure 5) are pyridine, 3-methyl pyridme, 3, 5-dimethyl pyridine and 5-ethenyl-2-methyl pyridine.
Other key components identified are 2, 3, 4, 5-tetramethyl-lH-pyrrole, pentanedioic acid diethyl ester, triphenyl phosphate, octicizer and tris (methylphenyl) phosphate.
The extracted ion chroirmh,giams shown in Figure 8 for sample 0695-14D, a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> rated conduit sample, have an EA/MMA ratio of 1.19. Pyridine compounds identified in the pyrogram (Figure 7) are 3-methyl pyridine (visual inspection) and 3, 5-dimethyl pyridine.
Other key components identified are 2, 3, 4, 5-tetramethyl-lH-pyrrole (visual inspection),
pentanedioic acid diethyl ester (visual inspection), octicizer and tris (methylphenyl) phosphate.
The extracted ion chromatograms shown in Figure 10 for sample 0695-14E, a one hour rated conduit sample, have an EA/MMA ratio of 1.13. Pyridine compounds identified in l
the pyrogram (Figure 9) are pyridine, 3-methylpyridine, 3, 5 <limethyl pyridine and 5-i ethenyl-2-methyl pyridine. Other key components identified are 2, 3, 4, 5-tetramethyl-lH-pyrrole, pentanedioic acid diethyl ester, octicizer and tris (methylphenyl) phosphate.
In conclusion, the results indicate that the five Hermo-Lag samples are consistent in terms i
of chemical composition to other Thermo-Lag samples tested as part of the NEI generic testing program.
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PY-CEl/NRR-2067L AttIchment 3 j
Page 1 of 1 Location of the Thermo-Lag Radiant Energy Meat Shield The NRC Project Manager for the Perry Nuclear Power Plant (PNPP) recently requested that the location of the Thermo-Lag radiant energy heat shield discussed in a February 11,1994, letter to the NRC on Thermo-Lag issues (PY-CEl/NRR-1750L) be identified.
This radiant energy heat shield is located in the Auxiliary Building on elevation 568', on the west side of the Reactor Core Isolation Cooling (RCIC) system instrument panel. It should be noted that this radiant energy heat shield is no longer required to protect the RCIC instrument panel because the safe shutdown analysis for this area has since been revised to utilize the Low Pressure Core Spray (LPCS) system as an alternative to the RCIC system. Further, Thermo-Lag is not used as a radiant energy heat shield anywhere inside the PNPP containment, as addressed in NRC Information Notice 95-27, NRC Review of Nuclear Energy institute "Thermo-Lag 330-1 Combustibility Evaluation Methodology Plant Screening Guide."
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