ML19224B004
| ML19224B004 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/03/1977 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| 1961, TM-0203, TM-203, NUDOCS 7906130411 | |
| Download: ML19224B004 (3) | |
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-i 02/03/77 THREE MILE ISLAND NUCLE AR STATION STATION CHEMISTRY PROCEDURE 1961 0XYGEN DETECTOR CALIBRATICN _ (,.gnn) i C Un Table of Effective Pages
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,.i Ploe Date R evision Pg Date R ev :sion Pace Date R evision h
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1961 Revision "
02/03/77 THREE MILE ISLAND NUCLEAR STATION STATICN CHEMISTRY PROCEDURE 1961 OXYGEN DETECTCR CALISRATION 1.0
SUMMARY
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0xygen concentrations must be determined in varicus blanketed tanks.
The laboratory detection and measurement of oxygen is Jased ucon separation, in a molecular seive followed by passage over a thermal conductivity element, of the various gasses which make up a sample.
Oxygen concentration is detarmined by measuring the height of the oxygen peak of an unknown and ccmcaring it to a calibration graph prepared frcm kncwn concentrations of oxygen.
2.0 APPARATUS 2.1 Fisher gas partitioner.
2.2 Assorted gas syringes.
2.3 Assorted gas sample bulbs.
2.4 Graduates.
3.0 REAGENTS 3.1 Argon; cnrcmatographic grade.
3.2 Oxygen; minimum 99% purity.
4.0 PRCCEDUPE 4.1 Cetermine the exact volume of eacn of the gas sample bulbs by filling with water and draining the contents into a graduate.
4.2 Purge each sample bulb thercughly with Argon and isolate.
4.3 Prepare a 0-5% set of standards of oxygen in Argon by injecting aliquots of oxygen into the sample bulbs prepared in Step 4.2.
a Calculate the volume of oxygen to be added to obtain the decired percentage as folicws:
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Revision 1 02/03/77 cc of 0 added = desired cercentace X bulb vol 100 4.4 Inject a 2cc aliquot from each bulb prepared in Step 4.3 into the gas partitioner and record the height o each oxygen peak as measured frcm its point of departure frcm the baseline.
4.5 Plot oxygen peak height vs. oxygen concentration on linear paper.
Oxygen concentrations of unknows may ncw be determined by comparison with this calibration curve.
5.0 REFERENCE 5.1 Fisher Gas Partitioner Manual.
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