ML20055C916
| ML20055C916 | |
| Person / Time | |
|---|---|
| Site: | 07105971 |
| Issue date: | 05/01/1986 |
| From: | Hanson J, Quillin Q, Tenorio J GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20055C908 | List: |
| References | |
| PROC-860501-01, NUDOCS 9006280385 | |
| Download: ML20055C916 (7) | |
Text
.
R.44
'RMS/ RHO. OPERATIONS CHANGE. NOTICE 1/86:
]
DCN No.
1056 Date Effective:
DMF Revision:
C Required-Effective Until:
Q $0P Revised O Completed
]
Q-Not Applicable j
Date 1.- Document Affected:
a.
Title
- CASK FIRESHIE1.D MAINTENANCE b.
Chapter and Section xvii:1 Revision 1
Page
- 1. 3 c.
Form No.:-
Revision Code 2.
Description of Change:
Add.3.p. " Calibrated Torque Wrench 0-200 lbs/ft" Add 4.a. "---and"700 Cask Leak Test Checksheet", R-100, if applicable."
Add 6.h, "---and "700 Cask Leak Test Checksheet", R-100, if applicable."
3.
Reason for Change:
To document 700 Cask Leak Check 4
Document Indexes Affected:
N/A
~. R. Quillin-(1)(
i b k-S Date 4/22/86 Initiated by:
W Reviewed by:
'NF xRMS-EE hi,sm
+ tbs /sc x Mgr., NS mMgr., RHO @7W ' NN#
x QA "4 4 CW xMgr., RMS h w 4/2.aA%
SG I
Approved by: Mgr., RM3 h k h Date S- /- 2C S.[/ N Revision recorded in Master 50P by: ]
pas _.
Date No Notation Required (5ignature) b/006280385 900621 PDR ADOCK 07105971 PDC
hi GENERAL h ELECTRIC dE IRRADIATION PROCESSING OPERATION RADIOCTIVE PRODUCTS-AND SERVICES OPERATING PROCEDURE REvisiDn 1
CHAPTER '
CASK /FIRESHIELD SECTION:
lf XVII. MAINTENANCE 1.
Cask Cavity Leak Check 1.
Purpose To describe the method for leak checking the cavity of shipping 1
casks as required by the specific cask Certificate of Compliance-ak' or federal regulations.
5 2.
Applicability I
This procedure can be used to leak check any cask equipped with a Jg cavity drain line, o
e g- /J 3.
Equipment i
a.
2 ea, calibrated gas pressure gages, 0-30 psig C.E b.
Compressed air or inert gas s.
, f.
c.
Pressure regulator g
d d.
Wrenches RH e.
Flexible tubing and connectors 0880 f.
Pool or water source
'l g.
Crane m
h.- Appropriately rated slings
)
1.
Drain plug adapter u
bl - hf j.
Stainless steel belly band for Model 700 A
k.
RTV sealant 1.
Screw driver u
m.
0.5 micron sintered metal filter a
n.
Hood or other facility with absolute filter o.
Duct / ventilation tape p.
Calibrated Torque Wrench 0-200 lbs/ft g
80 1
4.
Special Requirements a.
The cask cavity leak check shall be documented on the " Cask Leak Test Checksheet", R-28 and 700 Cask Leak Test Checksheet D-WO, if applicable.
E'
- Per RMS/ RHO OCN 1056 DATEISSUED 12/4/85
$UPERSEDES188UE PAGE 1
0F 6
I* ej i
J. I. Tenorio 10/22/80 REVIEW DATE 7/91 l-,j
@] ISSUED SY:
DATED:
l 82 420 01
_a
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g).43 6ENERALOitieraic ln IRRADIATION PROCESSING OPERATION.
RADIOACTIVE PRODUCTS & SERVICES OPERATING PROCEDURE CHAPTs4 sECTioN XVII.
CASK /FIRESHIELD MAINTENANCE I.
Cask Cavity Leak Check b.
The annual inspection activities shall be documented on the " Type B Packaging Maintenance / Inspection Checksheet" R-9, and recorded in.the Cask PM Logbook.
c.
The GE Model 600 must be leak checked prior to loading the cask for shipment or prior to shipment of the empty cask to an off-site facility.
d.
The Model 200 and Model 700 must be leak checked prior to shipment, FULL or EMPTY, to assure leakage does not exceed 10~3 atm cm'/sec.
5.
Preparation Procedure a.
The cask cavity shall. be cleaned to <10,000 cpm smearable beta / gamma activity per ft' as measured with an HP-210, or to-limits specified on appropriate checksheet, b.
Check the cask lid and cask body sealing surfaces for damage following RP&S S0P XVII:P. " Cask Lid Inspection".
c.
Visually check the existing gasket for nicks, tears, or other defects per SOP XVII:G, " Cask Seal Gaskets". Replace existing gasket with a new gasket if existing gasket is defective or if it'has been in service for 12 months.
d.
Install gasket and lid and transfer cask to appropriate het cell. Load contents into cavity if cask is to be shipped " FULL".
e.
If cask is to be shipped EMPTY, transfer cask to cavity leak check area.
f.
If the cask is to be shipped FULL, and requires cavity leak check, transfer the cask to leak check area. FULL cask leak check applies only to Model 200 and Model 700.
6.
Procedure a.
Remove the cask cavity drain plug.
Store it in area where it will not become lost or damaged, b.
Apply Teflon tape and install the drain plug adaptor and air line. A sintered metal filter should be in line as close to drain plug as possible.
cats issuno DEC 4
$85 surensionsissu' 10/22/80 1
'^ ' 2 6
issuso sv:
J. I. Tenorio DATED:
GENERALOitietnic
?(
IRR ADI ATION PROCES$1NO OPE'<ATION l
L RADIOACTIVE PRODUCTS & SERVICES OPERATING PROCEDURE CHAPTER SECTION
)
XVII.
CASK /FIRESHIELD MAINTENANCE I.
Cask Cavity Leak Check c.
Open main air supply valve and regulator valve until the calibrated gages 1
stabilize at-15 to 16 psig.
Wait a minimum of 15 minutes.
)
'~
d.
Use the crane to raise the cask and move it slowly over the' pool, e._ Slowly lower the cask into the pool until the cask lid lifting eye is just j
submerged.- The maximum depth should be 6 inches.
f.
Watch the cask lid scaling area for bubbles. A leak would be indicated by a i
steady stream of bubbles.
g.
Continue to look for bubbles for 15 minutes, h.
If no bubbles are observed, the cask passes the leak check.
Record results on the " Cask Leak Test Checksheet". R-28, and on the " Type B Packaging
!"N"$2#$hgggg}nChecksheet",R-9,and700caskLeakTestchecksheet, i.
If bubbles are observed, remove the cask from the pool and follow Part 7 Cask
~
Leak Procedure.
- 7. ' Cask Leak Procedure a.
Remove the cask from the pool and notify Area Supervisor that the cask failed the leak test.
b.
Check the cask lid bolts for tightness in the vicinity of the leak, c.
If the bolts were not tight, retighten and repeat the leak check per Part 6, Cavity Leak Check.
d.
If the bolts are tight, bleed the air from the cask to O psig.
e.
Direct air from cask cavity to the absolute filter in pool area.
Use CP or other radiation detection instrument to monitor the dose rate on the sintered filter.
f.
Carefully remove the cask lid bolts.
Check the bolts for proper thread engagement, burrs, nicks, etc. Wire brush bolts, if needed.
g.
If the cask is FULL, re-install cask lid bolts.
Transfer FULL cask to the hot cell interlock designated by Area Supervisor.
- Par RMS/ RHO OCN 1056 CATEISSUED DEC 4 1985
= =aa Desissu' 10/22/8o 1
^ ' 3 6
,issuso ev:
J. I. Tenorio DATED:
?.
r.
pm S E ff E R AL" ELECTRIC
="'
C IRR ADIATION PROCESSING OPERATION q
RADIOACTIVE PRODUCTS & SERVICES OPERATING PROCEDURE sacriON j
cwArran XVII.
CASK /FIRESHIELD MAINTENANCE I.
Cask Cavity Leak Check h '.
Use the crane in the cel1~1ock to remove the cask. lid. Remotely check-the sealing surfaces of the lid and' cask body for imperfections that could affect the gasket-seal. Notify the Area Supervisor of any damage that may require
- repair, i.
If cask is EMPTY,-carefully remove cask lid and recheck the sealing' surfaces.
J.
Check the. seal gasket for proper location and/or damage.
If required, obtain a new gasket from the Area Supervisor, k.
Reinstall gasket and cask lid.
Tighten all the cask lid bolts.
1.
Repeat the leak test following Part 6, Cavity Leak Check, m.
If leak persists, notify the Area Supervisor and/or. Engineering for disposition instructions..
8.
Assembly / Cleanup j
a.
Remove the cask from the pool.
q b.
Close the main air supply valve.
c.
Slowly bleed the air out of the cask and test system. Direct the contaminated air to the absolute filter in the pool area.
L d.
Monitor dose rate and remove the drain plug / sintered filter adaptor, e.
Remove pr' essure regulator from-compre: sed air cylinder, if. applicable, f.,
Clean threads of standard drain plug with wire brush.
g.
Apply teflon tape to the drain plug threads, h.
Install and tighten drain plug in the cask.
1.
Dry.the cask body with cloth or absorbent pads and decontaminate as necessary.
j u
j.
Decontaminate the work area to <2000 cpm smearable beta / gamma (total area) l.
activity.
.j k.
Store all ' leak test equipment.
1.
Return the calibrated pressure gages to the Area Supersisor.
m.
Decontaminate and have NS technician release the compressed air cylinder.
l l
Return empty cylinder to Warehouse.
10/22/80 1
'^ ' 4 6
cATsissuno DEC 4 1985
= <asionsissu' issuso ev:
J. I. Tenorigi DATED:
1
- i..
n_. -
GENERAL ( lELECTRIC'
'n' 3
IRRADIATION PROCESSING OPERATION RADIOACTIVE PRODUCTS & CERVICES OPERATING PROCEDUME
- CHAPTER SECTIDN XVII. CASK /FIRESHIELD MAINTENANCE I.
Cask' Cavity Leak Check 9.. Model 700 Cavity Leak Check a.
-Install the stainless steel belly-band approximately four inches below the cask lid.
b.
Tighten the hose-clamp fixtures to maintain proper orientation and to seal stainless steel band to cask surface.
c.
Apply RTV, or equivalent, to interface of the stainless steel band and cask diameter to assure water tight seal, d.
RTV should be allowed to set up for a minimum of one hour prior to filling the ~
stainless steel band with water.
]
e.
Attach the leak check gage assembly with 2 ea, calibrated gages, to the air supply and'the cask fill valve.
f.
Open cask fill valve and slowly apply 15 N to cask cavity.
g.
Allow pressure to stabilize for 15 minu'.,. Record gage identification and calibration information on the checksheet.
h.
Fill the stainless steel belly band with water. The water should be 6" maximum in depth and extend above the top of the items to be leak checked.
1.
Tighten hose clamps if any water leaks occur from belly-band.
j.
Carefully observe cask lid seal area, pressure relief valve (PRV) and drain valve for air bubbles which would indicate a leak.
k.
Continue to look for bubbles for a minimum of 15 minutes. Record times and other pertinent data on checksheet.
1.
If air leak is detected, notify Specialist, Supplemental Services, or RP&S Engineering for appropriate action, m.
Check the cask fill valve per Part 10, Model 700 Cask Fill Valve Leak Check of this procedure, n.
Follow appropriate steps of Part 8. Assembly / Cleanup.
DATE issunD DEC 4 190 ' *""*'"" '*su' 10/22/80 1
^ ' 5 6
issuaD sY:
J. I. Tencrio DATED:
p c-4:
.mutoiueme i'
litD.ADI ATION PROCESSING OPER ATION RADIOACTIVE PRODUCTS & SERVICES OPERATING PROCEDURE CHAPTER SECTioN XVII.
CASK /FIRESHIELD MAINTEMANCE I.
Cask Cavity Leak Check
- 10. Model 700 Cask Fill Valve Leak Check a.
Record cask cavity pressure on checksheet.
Pressure should remain at 15 psig, b.
Close air supply valve and cask fill valve.
c.
Remove line from fill valve, d.
Apply liquid " Snoop", or equivalent, to the threaded fittings on the fill valve, actuator shaft and open inlet to the cask.
e.
The presence of bubbles indicates an air leak.
If leak is detected notify Specialist. Supplemental Services for appropriate actions.
f.
If no buboles are detected, reconnect the air supply line to the cask fill
- valve, g.
Open cask fill valve and check cavity pressure. Gage should indicate 15 psig.
Record pressure on the checksheet.
h.
Close valve and direct air from cask cavity towards absolute filter in hood.
Use CP or other radiation detection instrument to monitor the dose rate on the sintered filter,
- i. Remove air supply line and associated leak check equipment.
I L Apply teflon tape or equivalent to the threads of appropriate stainless steel pluct.
k.
Install and tighten stainless steel plugs in cask drain valve and cask fill valve.
1.
Drain water from the belly band.
Disposal to be determined by Specialist, Supplemental Services.
m.
Store all equipment in Controlled Storage Area, n.
Follow appropriate steps of Part 8. Assemb.ly/ Cleanup.
oATE1880to DEC 4 1985 m assons = Un
"'V'**"-
10/22/80 1
* ' 6 6
mauso ev.
J. I. Tenorio oAveo:
)
IRRADIATION PROCESSING OPERATION
)'
RADIDACTIVE MATERIALS SERVICES I
REMOTE HANDLING OPERATIONS 1
l STANDARD OPERATING PROCEDURE E
CHAPTER : CASK /FIRESHIELD SECTION:
.h' E XVII.
MAINTE*ANCE L.
Metal Fireshield Painting tL Me e1 1.
Purcose
-oLp g
To define the requirements for painting the metal firethields.
aT -
i o> 9 N
.R $
N 2.
Aeolicability
.a r:
g g3 This procedure is applicable to all Irradiation Processing-
$5{Q(
owned metal fireshields.
g EEn 48 com 3.
Eouiement a.
Paint brush g
b.
Rustoleum paint, Navy Cray, Cat. No. 35 00265 0
c.
Sandpaper / emery cloth b
d.
Wire brush E'
h.
4 Soeelal Reauirements E3 8E a.
The "Firestield Checksheet",R 7, is a permanent record, c
08OO painting acetyities are documented on this checusheet.
- l b.
The actual paint requirements, if different than 3.B shall O
$f be specified in the fabrication specification for specific l
(
model container or serial number.
b c.
All smearable and fixed radioactive contamination shall be I
4 g
is removed prior to painting the fireshieid.
E b
/
5.
Procedure l
5 a.
Survey the fireshield for both smearable and fixed 8 680 radioactive contamination.
Surface must be <200 cpm i
beta gamma and <100 dpm alpha prior to painting, g
f b.
If fireshield surfaces are free of radioactive contamin.
ation, work may be performed in uncontrolled area, i
I
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i 8
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2 g7 lj
@Q lt,UED BY:
J. I. Tenot.<
DATED: 10/16/80 REVIEW D ATE 7/91
-- ?!W
c GENER AL O ELECTRIC 3/86 o
)
1RRADIAfl0N PROCESSING OPERATION RADIOACTIVE MATERIALS SERVICES REMOTE HANDLING OPERATIONS STANDARD OPERATING PROCEDURE 8"CT '"
CHAPTER CASK /FIRESHIELD XVII. MAINTENANCE L.
Metal Firoshield Painting c.
If fireshiaid surfaces are contaminated, decontaminate to <200 epm beta gamma and <100 dpm alpha (total area smear). Sandblasting, washirg with solvent, water or soap are examples of acceptable decontamination methods.
d.
Dispose of decontamination materials to radwaste following appropriate procedures.
e.
Visually inspect the fireshield for signs of rust, scale, or other defects in the paint, f.
If surface is acceptable, initial the "Fireshield Checksheet", R 7.
g.
If surface is unacceptable, prepare the surface for painting by using a wire brush and/or emery cloth to remove rust or scale and to smooth the surface.
b.
Remove all old labels. Use solvent, if necessary, to remove label adhesive.
[
1.
Use water damp cotton pony to wipe cleaned area and dry.
j.
Obtain the gray paint or other color as specified by the Responsible Engineer or Area Manager.
k.
Apply the paint with a brush using smooth, even strokes.
1.
DO NOT paint over the nameplate attached to the fireshield, m.
Allow paint to air dry apply second coat, if coverage is not acceptable.
n.
Clean paint brush in appropriate solvent for the paint used.
o.
Store paint in approved paint storage locker.
p.
Complete 'Fireshield Checksheet", R 7, return Checksheet to Product Manager or RHO Shipping Clerk for filing.
j l
DATE IMUED 7/22/87 SUPE RSEDE8100UE REVISC*d NO.
1 PaGEg OF g
leeUsoevJ. 1. Tenorio DATEo:
10/16/80
~.
-