ML15042A137
| ML15042A137 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 02/03/2015 |
| From: | Bisco Products, Exelon Generation Co |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML15042A188 | List: |
| References | |
| NS3-020 | |
| Download: ML15042A137 (3) | |
Text
ENCLOSURE4 GESC, NAC International, Atlanta Corporate Headquarters, 655 Engineering Drive, Norcross, Georgia (Engineering Report # NS3-020, Effects of 1300°F on Unfilled NS-3, while Bisco Products, Inc., 11/84)
Calvert Cliffs Nuclear Power Plant February 3, 2015
P.2 OCT 31 '90 13:38 BISCOI IODUCTS N
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BISCO PRODUCTS, INC.
TECHNICAL REPORT NS3-020 NO.
Effects of 1300' F on Unfilled NS-3 DATE REVISION 11-20-84 0
I bieco products, inc.
1420 renaissance drive park ridge, Illinois 60068 one of the brand companies
OCT 31 '90 13:39 BISCO PRODUCTS P.3 EIl Iv ENGINSERING REPORT Number NS3-020 blsoo products, Inc.
1125 howard St.
elk grove village, illinois 60007 (312) 640-1840
Subject:
Effects of 13000 F on Unfilled NS-3 Date: November 20,1984 Customer:
By:.-
ttw~4
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Approved By Malinda Mercadb Edwin Stginft Chemist Technical Mana er
Purpose:
To determine the effects of 13000 + 1009 F for one hour on unfilled NS-3.
(.
Procedure:
A sample of unfilled NS-3 was placed in a furnace at R.T.
The furnace was then turned on and heated to 1300 + 1000 F
( 50 mins.
) and then held at this temperature for-one hour.
At the end of one-hour at 13,00 + 100* F, the oven was turned off and the unfilled NS-3 sample removed.
The sample was permitted to cool' to room temperature thieh visually examined.
T-his e;.:periinent was perýcrm-ed again on a second sample but the samplo was weighed before and after exposure.
Weight Before Weight After Weight LOSS 143.37 gms.
84.09 gms.
59.28 gms.
41.35%
Results:
2, It was observed that a light cloud of white smoke came from the furnace at 6000 F.
This cloud of light smoke continued throughout the rest of the experiment.
- 2. The unfilled NS-3 was a solid after the exposure to 1300+1000 F it did not burn.
- 3. The 41.35% weight loss should be composed of the organic
- . components of NS-3 and chemically bonded hydrogen sources.
The formula total of all organic and chemically bonded hydrogen components in NS-3 is 48.97%,
- 4. The exposed WS-3 though a solid was quite brittle and possessed very little mechanical strength.
- 5. it is expected that little of the original neutron shielding properties remain follow¢ing the exposure to 1300 + 100 0 oF.
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