ML20050E260
| ML20050E260 | |
| Person / Time | |
|---|---|
| Site: | Three Mile Island  |
| Issue date: | 03/13/1982 |
| From: | Nelson M, Toole R GENERAL PUBLIC UTILITIES CORP. |
| To: | |
| Shared Package | |
| ML20050E255 | List: |
| References | |
| 0035W, 1004.33-01, 1004.33-1, 35W, NUDOCS 8204130163 | |
| Download: ML20050E260 (10) | |
Text
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' FOR USE IN UNIT I ONLY 1004.33 Revision 3 l 03/13/82 (m '
IMPORTANT TO SAFETY CObTTROLLED COPY FOR NON-EINIRON! ENTAL IMPACT RELATED E IN UNIT 1 ONL U6 THREE MILE ISLAND NUCLEAR STATION UNIT NO.1 EMERGENCY PLANNING IMPLEMENTING PROCEDURE 1004.33 [d#24-
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HANDLING HIGH ACTIVITY REACTOR COOLANT SAMPLE - BORON, CHLORIDE, AND GAMbM SPECTRUM ANALYSIS - ACCIDENT CONDITIONS Table of Effective Pages Page Revision Page Revision Page Revision Page Revision 1.0 3 2.0 3 3.0 3 4.0 3 5.0 3 6.0 3 7.0 1 ' 8.0 1 9.0 1 t l
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FOR USE !N UNtT t ONLY 1004.33 Revision.3 i THREE MILE ISLAND NUCLEAR STATION UNIT N0. 1 EMERGENCY PLANNING IMPLEMENTING PROCEDURE 1004.33 ' HANDLING HIGH ACTIVITY REACTOR COOLANT SAWLE - BORON, CHLORIDE, AND GAMMA SPECTRUM ANALYSIS - ACCIDENT CONDITIONS 1.0 PURPOSE The purpose of this procedure is to provide guidance to technicians involved in the handling and preparation of post accident reactor coolant samples for boron analysis, chloride analysis and gamma isotopic analy-sis, as described in NUREG 0737. It is designed to provide prompt analytical results for the above mentioned parameters while minimizing technician exposures per the requirements of NUREG 0737. Specifically, these requirements include:
- 1. Boron analysis completed within 1 hour after obtaining sample.
- 2. Gama isotopic analysis for evaluation of degree of core damage completed within 3 hours or less from the time a decision is made to obtain a sample.
- 3. Chloride analysis completed within 1 shift (assume 8 hours). .
- 4. The above sampling and analysis completed without incurring a radiation exposure to any individual in excess of 5 Rem to the whole body or 75 Rem to the extremities.
All of the above requirements assume a highly radioactive initial sample with a source term as specified in Regulatory Guide l'.4. The Chemistry Coordinator is responsible for implementing this procedure upon procure-ment of a post-accident sample in accordance with 1004.15. 2.0 ATTACHMENTS 2.1 Attachment I - Exhaust hood overview. 1.0 i FOR USE iN UNIT ! CNLY
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1004.33 Revision 3
- 1 ' l 3.0 EMERGENCY ACTION LEVELS 3.1 An emergency condition has been declared, and a gamma spectrum analysis, boron analysis and chloride analysis of a high activity reactor coolant sample, which was obtained per procedure 1004.15, i has been requested.
4.0 EMERGENCY ACTIONS 4.1 Verify Radiological Control personnel are available to assist Chemistry technicians by providing complete radiological coverage; (i.e., prescribe proper protective clothing, dosi-metry requirements, Scott Air Pac or supplied breathing air a requirements, perform initial and continual dose rate survrty while chemistry technician works with sample, monitor chen-istry technicians exposure throughout the procedure.) t
- NOTE: The Chemistry Coordinator shall ensure that chemistry :
- personnel conform to the exposure Limits specified in :
- procedure 1004.9 (Radiological Controls During :
- Emergencies). : *
- NOTE: If necessary transport the sample to the dilution :
- station. Reduce radiation levels to minimize inter- :
- ference on the operation of the counting facility. :
4.2 Ensure that the shift supervisor has been notified that work ! on the sample is to commence and provides verification that the chemistry laboratory exhaust hood ventilation fans are running and will not be interrupted. (AH-E-20). 4.3 Ensure that the chemistry laboratory exhaust hoods are set up with the equipment as diagrammed and explained below: l 2.0 i FOR USE lN UNIT I ONLY
cpR U.SE !N UNIT t ONLY 1004.33 Revision 3 X ( 4.4 Ensure that a standby chemistry techniciari is dressed and prepared to assist in the sample preparation and analysis. 4.5 Ensure that all personnel involved with handling and analyzing this sample are thoroughly familiar with this and other referenced procedures.
- NOTE: Prior to handling sample, establish equipment in :
- chemistry laboratory exhaust hoods per Attachment I. :
- All dilution water must be added to the containers :
- and the containers prelabeled prior to handling :
- sample. Start stirrers D 1 and D2 , run KAP for :
- Boron. :
4.6 THE CHEMISTRY TECHNICIAN SHALL: Initial s 4.6.1 Don lead gloves and utilizing long handled tongs, remove sample (F) from transport pig and place in pig (C) - Attachment I. 4.6.2 Gripping bottle (F) neck with short handled tongs, remove lid with other hand. 4.6.3 Quickly and carefully pipet 0.1 ml of sample, using Eppendorf pipet (J), from sample bottle (F) to the 1 1 liter poly bottle (E ), 4.6.4 Discard tip from pipet (J) into lead receptacle (L). 4.6.5 Using pipet (K), transfer 1.0 mi from 1 liter poly 2 bottle (E1) to 1 liter poly bottle (E ) and 1 m1 to vial (GI ). Cap vial (G I) and Cap (E1) and place (EI ) in the back left hand corner of hood 1. 4.6.6 Discard tip from pipet (K) into lead receptacle (L), and place new tip' on pipet (K). 3.0 ; FOR USE IN UNIT i ONLY
c m* USE IN UNlT I ONLY 1004.33 Revision 3 4.6.7 Transfer 2 mis from sample bottle (F) to flask (H) using pipet (K). Place stopper in flask. 4.6.8 Transfer 1 ml from SAMPLE BOTTLE (F) to beaker (I) using pipet (K). Discard tip from pipet (K) into lead receptacle (L). 4.6.9 Using short handled tongs and still wearing lead gloves, replace cap on SAMPLE BOTTLE (F). 4.6.10 Using long handled tongs, place SAMPLE BOTTLE (F) back into transfer pig and move cart to far side of the lab. 4.6.11 Using short handled tongs, transfer flask (H) to pig (C). 4.6.12 Using short handled tongs, transfer beaker (I) from hood 1 to hood 2 (place on magnetic stirrer (D3 ). 4.6.13 With new tip on pipet (K), transfer 1 m1 from bottle (E2 ) to vial (G 2), Cap (G2 ). Cap (E2 ) and - discard tip from pipet (K) into lead recep-tacle (L). Close cover on receptacle (L). Place (E2 ) in back lef t hand corner of hood 1. 2 4.6.14 Place vials (GI ) and (G ) into individual poly bags and tape bags shut. Survey (GI ) and (G2 ) with a dose rate instrument.
- NOTE: For guidance, samples reading > 1 mr/hr will be too :
- active for counting on the Geli detector /MCA system. :
- If both samples read > 1 mr/hr, further dilution :
- 2 of the contentsdilutions of bottleof(E .:
- all subsequent (E)2is ) so required. Note that correct :
, : volume calculations can be performed. :
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'FOR USE IN UNIT ! ONLY 1004.33 Revision 3 l' 4.6.15 Transport appropriate sample (s) to count room (those reading <1 mr/hr) and count on Geli detector /MCA system per SCP 1958.3.
- NOTE 1: If background noble gas levels result in interference :
- with Geli analysis (high deadtime on MCA) insure :
- shield cover on Geli cave is closed and initiate :
- compressed air purge of cave. :
- NOTE 2: If background levels do not allow the use of the :
- TMI-I Geli/MCA system, analysis may be performed by :
- transporting samples to TMI-2 or to the mobile lab :
- of the Environmental Assessment Group. :
- NOTE: If counting vial ( 1), volume for use in the CRAM :
- program is 1 x 10- ml. If counting vial (G 2), :
- volume is 1 x 10-7 ml. :
4.6.16 Perform boron analysis on the contents of the beaker (I) per N1904 observing the following cautions and exceptions:
- a. In the calculations given in section 6.0 of procedure N1904, sample volume, "S", is 1 ml .
- b. Use of 1 KAP standard for NaOH standardization may be used vice 3 as specified in CP N1904.
- c. No spiked sample will be run.
4.6.17 Following titration, pour the contents of beaker (I) down hood sink and flush sink for approximately 2 minutes with demin water. 1 l l
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1 COR 1RE !N UNIT I ONLY 1004.33 l Revision 3
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4.6.18 Perform chloride analysis on the contents of flask (H) per CP N1902 observing the following cautions and exceptions:
- a. Spectrophotometer cell and flask (H) containing sample must be handled with lead gloves on.
- b. Results must be multiplied by 2.5 since only 2 mis of sample are used vice 50 as specified in CP N1902.
c.' The dilute Hydrochloric acid used for pH adjustment in the boron analysis is removed from the sample hood prior to removing the stoppers from flask (H) and flask (S). I 7
- d. Preparation of a spiked sample is not required.
5.0 FINAL CONDITIONS 5.1 Sample analysis requirements have been met. 1 i 6.0 i
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e O c0R USE !i'i liNlT ' ONLY 1004.n Revision 1 N ' ATTACHMENT I HOOD 1 (A) Lead glass shield 24" long, 12"high and 1 1/2" thick (8) Spill catch pan 24" X 20" X 1" deep (C) Lead pig for sample bottle (l" lead shielding) 1 (0 ) Magnetic stirrer bases 2 (0 ) Magnetic stirrer base I 1 liter poly bottle containing 1000 ml demin water and stir bar, (E ) lid off. 2 (E ) 1 liter poly bottle containing 1000 ml demin water and stir bar, lid off. (F) 125 sample bottle containing sample (on portable cart) I 10 ml counting vial containing 9 mis demin water, lid off (G ) 2 (G ) 10 ml counting vial containing 9 mls demin water, lid off ' i (H) 125 Erlenmeyer flask (clean) containing 23 mis demin water (I) 250 ml beaker containing 99 mis demin water and stir bar (J) 0.1 ml Eppendorf pipet with new tip, on cart (K) 1.0 ml Eppendorf pipet with new tip, on cart (L) Lead receptacle for used pipet tips with cover (S) 125 ml Erlenmeyer flask (clean) containing 25 mis demin water, on cart , I (T) and (U) Chloride reagents, on cart l (V) Chloride reagent pipets, on cart ' (X) 10 cm DU cell for sample Cl , on cart ! C (Y) 10 cm DU cell for blank Cl , on cart
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Revision 1 ATTACHMENT I l HOOD 2 3 (D ) Magnetic stirrer base ! (I) Beaker I from hood 1 after sample added (N) Ring stand for boron buret (0) Boron buret (P) Lead glass shield 12" x 12" x 1 1/2" thick (Q) Mannitol with scoop (R) Dilute HCL for pH adjustment i i
! NOTE: Short handled tongs shall be a minimum of 12" long >
l ! Long handled tongs shall be a minimum of 36" long. ! (- i l l l 1 l l I l C 1 FOR USE W. UNIT i CNLY
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