ML19224B142
| ML19224B142 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/19/1976 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| 1608, TM-0077, TM-77, NUDOCS 7906140106 | |
| Download: ML19224B142 (3) | |
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TMI DOCUMENTS DOCUMENT NO: [
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OF DOCUMENT PROVIDED BY COPY MADE ON METT.OPOLITAN EDISON COMPANY.
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01/19/76 THREE MILE ISLAND NUCLEAR STATION SIATION HEALTli PilYSICS PROCEDURE 1608 AIR SAMPLING FOR TRITIUM MASTER COPY Table of Effective Pages D O N O Face RFMOVE Page Date Revision Pace Date R evision l ate Hevision 1.0 01/19/76 2
26.0 51.0 2.0 01/02/75 1
27.0 52.0 3.0 28.0 53.0 4.0 29.0 54.0 5.0 30.0 55.0 6.0 31.0 56.0 7.0 32.0 57.0 8.0 33.0 58.0 9.0 34.0 59.0 10.0 35.0 60.0 11.0 36.0 61.0 12.0 37.0 62.0 13.0 38.0 63.0 14.0 39.0 64.0 15.0 40.0 65.0 16.0 41.0 66.0 17.0 42.0 67.0 18.0 43.0 68.0 19.0 44.0 69.0 20.0 45.0 70.0 21.0 46.0 71.0 22.0 47.0 72.0 23.0 48.0 73.0 24.0 49.0 74.0 25.0 50.0 75.0 Unit 1 Staff Reco mends Approval Unit 2 Staff Recom ends, P oproval Approval Date Approval Date CognijaStA/pt. Head Cognidnt b'ep't. flead Unit 1 PORC Recommends Approval Unit PORC Reco mends Approval 0
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Unit superintendent 5
5 HP 1608 Revision 2 01/19/76 THREE MILE ISLAND NUCLEAR STATION STATION HEALTH PHYSICS PROCEDURE 1608 - Air Sampling for Tritium 1.0 PUR'0SE The purpose of this procedure is to describe in detail the procedure for Air Sampling for Tritium.
2.0 DISCUSSION Tritium is a radioactive form of hydrogen which exists in nature in very small amounts; but can be produced artificially by a nuclear reaction. Tritium has a half life of 12.26 years. Since Tritium emits a soft Beta (18 kev) and it can be a potential internal hazard, monitoring is difficult ar.d counting must be done by internal liquid scintillation counting.
3.0 REFERENCES
3.1 Radiolcgical Health Handbook, Page 231 3.2 10 CFR 20, Appendix B, Table I or II 3.3 HPP 1741 and P.C.P.1951 4.0 EQUIPMENT 4.1 Tritium Sampler -
4.2 Stop Watch i
S.0 GPERATING INSTRUCTIONS 5.1 Take jar containing 100ml demineralized water and screw jar to collector.
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01/02/75 1608 Revision 1 5.2 Connect Tritium Air Sampler to power outlet.
5.3 Simultaneously start air sampler and stop watch.
5.4 Adjust flow to 500 cc/ min.
5.5 Switch off air sampler after 8 minutes, elapsed time.
5.6 Unscrew jar and take sample to lab for preparation and counting as per P.C.P.1951 and H.P.P.1741, respectively.
5.7 Forward data to H.P. Sup2rvisor for review and approval.
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