ML20133L634
| ML20133L634 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 03/14/1961 |
| From: | Zeitlin F MALLINCKRODT, INC. |
| To: | Price H US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20133G976 | List:
|
| References | |
| FOIA-96-343 NUDOCS 9701220089 | |
| Download: ML20133L634 (3) | |
Text
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MALLINCKRODT CHEMICAL WORKS,..
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u ANur Actunt ms or FINE CHEMICALS FOR MEDICIN AL. PHOTOGRAPHIC
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.n MR. H. L. PRICE, DIRECTOR 4'['
'h DivlSION OF LICENSING AND REGULATION I
U. S. ATOMIC ENERGY COMMISS1ON h I'%..
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- .4 WASHINGTON 25, D. C.
DEAR MR. FRICE:
PURSUANT TO THE PROVISIONS OF 10 CFR PART 20, PARAGRAPH 20$1f03, (C) (3),THE NUCLEAR DIVISION, COMMERCIAL OPERATIONS OF MALL-INCMRODT CHEMICAL WORKS WOULD L.lKE TO MAKE APPLICATION FOR A MODIFICATION TO LICENSE NO.-SNM 33 TO INCLUDE AN EXEMPTION j
FROM THE PROVISIONS OF PARAGRAPH 20.103, (A), TO. PERMIT AUTH_ORIZED USE OF RESPIRATORY PROTECTION DURING THE OPERATION DESCRIBED i
BELOW.
DURING THE PROCESSING OF AMMONIUM DIURANATE CONTAINING URANIUM ENrt l CHM ENT S OF LESS THAN 6 PERCENT URANIUM 235, A
l* l L T P A T I O N IS PERFORMED USING A P' LATE AND FRAME FILTER PRESS.
THE FILTER PRESS IS ENCLOSEO IN A LARGE WALK-IN TYPE HOOD WHICH IS EQUlPPED WITH AN EXHAUST SYSTEM THAT MAINTAINS THE ENCLOSURE AT A NEGATIVE PRESSURE WITH RESPECT TO THE GENEEAL WORKING AREA.
WHEN THE FILTRATION IS COMPLETE, I
THE CAKE IS REMOVED MANUALLY FROM THE PRESS AND PLACED IN TRAYS WHICH ARE INSERTED INTO A DRYER.
TWO OPERATORS PERFORM THIS TRANSFER OPERATION.
EVEN THOUGH THE CAKE IS WET, AIR-BORNE URAN 1UM CONCENTRATIONS EXCEED THE LEVELS SPECIFIED l
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lN 090ER TO PROVIDE RESPIRATORY PROTECTION DURING THIS OPERATION, IIR87i.f AS E AIR SUPPLIED MASKS ARE MANOATIRt ^
SUPPLIED.
USE OF THE MASKS IS THE FOLLOWIM(. IS OFFERED IN ANSWER TO THE QUESTION POSED l
lN SUBPARAGIAPH (3):
(l) IHE RESPIRATORY PROTECTION E'Q U l P M E N T IN USE IS g/s phyTRfD CA
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1 IHE QCSPlFATOR IS CJNNE0TED TO A C 'M P L E S S E D AIR
$YSTEM A id t SLPPLlED elTH AIR AT 3 POUNCS PER SCUAPE 1.s C H CAUCE PRESSJAE.
. A C !t SYSTEM 9 RANCH IS EQUIPPE0 WITH AN A D D I T I ).. A L FILTER.
IHE COMPRESSOR IS LOCATED IN AN A R r. A OF THE PLANT WHERE THE PRESENCE OF RAD 10 ACTIVE MATEPIALS IS NOT PERMITTED.
THE AIR l.'4 T A K E IS SITUATED ON THE OUTSIDE CF THE BUILDI4G AT A HEIGHT OF TEN FEET ABOVE THE GROUND.
THE RESDIRATORS OPERATE UNDEH A POSITIVE PRESSURE WITH RESPECT TO THE AIR OUTSIDE OF THE MASKS.
ANY LEAKS WOULD eE ouT Or RATHER THAM ieTO rHE RESPIRATOR.
THE CONCENTRATION OF THE AIR WHICH IS SUPPLlED IS IN THE ORDER OF O.5 x 10 '
- MICROCURIES PER MILLILITER OR LESS.
THIS TYPE OF RESPIRATOR, W.i E N PROPERLY USED, HAS AN EFFICIENCY WHICH APPROACHES S
100 PERCENT.
(11) EACH EMPLOYEE PERFORMING THE OPERATION UNDER CON-SIDERATION IS ISSUED A FULL-FACE AIR SUPPLIED RESPIRATOR PREV 10USLY DESCRIBED AND IS INSTRUCTED IN ITS PROPER FlT AND USE.
lT IS HIS RESPONSIBILITY
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TO CLEAN THE RESPIRATOR AND REPORT ANY MALFUNCTION
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OR MAINTENANCE REQUIREMENTS.
THE SAFETY ENGINEER i
AND THE PLANT FOREMAN INSPECT THE EQUIPMENT ON A SCHEDULED MONTHLY BASIS TO INSURE ADEQUATE MAIN-TENANCE AND CLEANING.
ALL DEFECTIVE EQUIPMENT, WHETHER REPORTED BY THE USER OR OBSERVED DURiaG THE INSPECTIONS, lS REPLACED.
NEW EMPLOYEES ARE INSTRUCTED IN THE PROPER FITTING AND CLEANING OF HIS PERSONAL PROTECTIVE EQUIPMENT.
ON A QUARTERLY BASIS, AN INSTRUCTOR CONDUCTS AN 1
INSPECTION OF THE EQUIPMENT AND INDOCTRINATES f
PERSONNEL IN FITTING AND USE.
(Ill) USE [F THE AIR-SUPPLIED RESPIRATORS IS A RlGID REQUIREMENT DURING THE TRANSFER OF THE MATERIAL FROM THE FILTER PRESS.
A NOTICE TO THIS EFFECT IS POSTED
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ON TFE INCLO304L s '. T A Y 00]F.
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.7 F THE FECTECTIVE l
EGUIP'4 NT IS J w T i f. v A L ', Y STrE50 eY PLadi
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SUPE *VISleN.
.040]McLIAACE S L '. J E C T S THE l.VOLVED PCFSONNEL T) DIS 0lPLINARY ACTlvu WHICW CAN BE AS SEVEPE AS TEMPORARY LAY-OFF.
$UCH ACTION HAS EEEN T A K Eli ON SIX OCCASIONS DURlHG THF FAST THREE YEARS.
AT THIS Tire, CENERAL'COMPLlANCE IS EXCELLENT.
THE USE OF PPOTECTIVI EQUIPMENT IS DISCUSSED IN A HEALTH AND SAFETY HANDBOOK WHICH IS CURRENTLY IN A LATE STAGE OF PREPARATION.
DURING THE COURSE OF A NORMAL 40 HOUR WOPK WEEK, THE MAXIMUM TIME THAT WOULD BE OPENT IN THE OPERATION UNDEP CUNSIDERATION WHEN AIR SUPPLlED RESPIRATORY PROTECTIVE EQUIPMENT IS REQUIRED IS APPR0xlMATELY lC HOURS.
(lv) THE AVERAGE URANIUM AIRBORNE CONCENTRATIONS IN THE GENERAL BREATHING ZONES OF THE E f1P L O Y E E S DURING THE FILTER PRESS UNLOADING HAS BEEN DETERMINED TO BE 2x 10~'
MiCROCURIES PER MILLBLITER OF AIR WHILE THE GENERAL AREA AVERAGE CONCENTRATION IS 7x 10-'
MICROCURIES PER MILLlLITER OF AIR.
]
WE WOULD LIKE TO REQUEST YOUR EARLY CONSIDERATION OF THIS APPLICATION.
SHOULD YOU REQUIRE ADDITIONAL INFORMATION, PLEASE 1
NOTIFY US ACCORDINGLY.
j VERY TRULY YOURS, NUCLEAR DIVISION
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FRANK ZEITLIN MANAGER, COMMERCIAL OPERATIONS
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CC:
MANAGER i
OAK RIDGE OPERATIONS OFFICE U. S. ATOMIC ENERGY COMMISSION l
P. O. B0x'E J
OAx RfDGE, IENNESSEE
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