ML20204C361

Certificate of Compliance 9103,Rev 6,for Model NLI-6502

ML20204C361
Person / Time
Site:	07109103
Issue date:	10/13/1988
From:	Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:
Shared Package
ML20204C317	List: ML20204C313 ML20204C361
References
NUDOCS 8810200450
Download: ML20204C361 (4)

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l Nuclear Assurance Corporation NL Industries, Inc. application dated I

6251 Crookec: Creek Road September 7, 1977, as supplemented.

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Norcross, GA 30092 N h k $ /,_

71-9103 1

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(a) Packaging g.

(h0b (1) Moda'yfo.:

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I (2) DescViption 2*

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A steel, lead, and depleteditaniug#,diamete,r by 130 'bches long. The t-sh elded shipping u sk.

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overall dimension's ~are 33 5 inches i

I loaded casbeighsabtrut. 5;T0ipounds.J The walj thickness of the I

cavity and cuter 4 hell is 1/2 Inch.l'The will thicknesfof the inner I

shelHs1irfch., The mai b4d l f Me caskifVd1vid 'd'into two contaMs uran'idm shielding e%y o t

lI reginnt, The %ner region, idh 354 mutmum of 5 3/4 inches thick, 7

ngles 5t 4hecfour corngM) the remainder of the'hcjel) 3-inch thick regiqn',is MMed witf1Mq#er melting point sMelding region is filled hitMchemical grade lead. The outer i

(sacri t

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I 61 antimenti} lead. The catk.contains six fu (le "weep holes" I

around the kast,at each end.

This sacrific 4 region also contains 10 l

la/ers of 0.0 2-in t The m in body of the cask is equipped with two lids, one,%prne plate.n.each enp.

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' lids are similar in construction.

i each being 24.5 inches Kttyteg4nd Ex, tending 5 inches into the l

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I cask recess. The lids, like the main cask body, contain an outer I

sacrifical region (2" thick containing ten 0.018-in terne discs with i

I the remaining volume filled with 61 antimonial lead) and an inner l

region (4 5/8" thick) cor.taining chemical grade lead. The sacrificial i

region in each lid is fitted with exterior weep holes.

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FDh ADOCL 07101101 I.

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j Page 2 - Certificate No. 9103 - Revision No. 6 - Docket No. 71-9103 5.

(a)

(2) t,*scription(Cont'd)

One lid contains a 1/2-inch drain line and valve. The other lid i

contains two, 1/2-inch lines for a pressure relief valve and the other i

line is capped.

The fuel rods are contained within an approximate 11-1/2-inch square by 128-1/2-inch long openwork basket constructed of stainless steel angleandstrap.s.,he3asket$aJ,pfull-lengthlidalongoneside,for T

b horizontal logir hnd ilisi'opppbynd for vertical unloading. A l

vertical staftless steel-clad Boral ison late divides the basket intotwoffdl-lengthhalves,andtwo artia incorpgtsdintothesidesofthebasket'./*poisonplatesare s

o A m4Ltal screen enclosure surrounds the package in transport to serve a a sun-shade and prevent inadvertent use of ttructural parts of t'ie ikagebother than the tie-down devicesj<of se"cur]ng the package '.o he vehicl{ h r,\\ g transport.

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n he cask restr horizonta.11y on itsfintegral supporting structure at teach end, and the supporting structure is bolted to k separate struc-l b~ture attached to the deck ofithe'special trailer provided for its use.

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Ihe Model No. NLI-6502 shipping package is constructed in accordance I

tlational Lead. Company ~ Drawing Nos.:

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s 5797-p, Rev. 1

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" ',, V ? Details-Safety $hield

' Cask Tie-Down 5798-0 Rev. 1 6502-0I,LRev.5 Basket Details-,

6502-03/ Rev. 4 Latch and Basket Details 6502-04, Rev. 3 '

. Basket and Lid Assembly 6502-07, Rev. 'i' N

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-Caskr-6502-08, Rev 4 l'

' Lid Assembly and Details 5.

(b) Contents l

(1) Type and furn of material l

Irradiated aluminum-uranium alloy fuel rods enriched in the U-235 isotope with the following specifications:

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Page 3 - Certificate No. 9103 - Revision No. 6 - Docket No. 71-9103 I

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(b)

(1) (Cont'd)

I NRU NRX and Miscellaneous

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Maximum U-235 content per rod 495 550 l

l prior to irradiation, g (1.8 per cm)

(4.0 per cm)

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i Minimum average burnup, t 45 45 I

Minimum dec y t h ys b (70 120

• May be A. mixture of NRX fuel rods, NRX' fuel rod element sections

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in a.,can, bundles of SLOWPOKE fuel elements'in a can and sections I

of fast neutron fuel tubes and plugs in a can.1 1

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(2) pi,m'um,quantityofmaterialperpackage.

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4he maximum decay heat load per package not to exceed 14,000 Btu /hr;

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/and 9.9 kg U-235 in the form of NRU' fuel rods or 15.4 kg U-235 in the f

' form of NRX fuel rods or,rtiscellaneous SLOWPOKE elements, fast neutron f

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Ctubes and plugs.

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(c) Fis'sile Class

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Maximum number of packages t

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per shipment One(1)

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l 6.

Poison inspection and loading of fuel rods must be subject to the following l

1 conditions:

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(a) Poison inspection and loading of fuel rods in accordance with Section VII-I l

B.2.(B.)(3.) (pp. VII-10 thru VII-11) of the. application, and

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I (b) The package must not be loaded with a mass which exceeds 75% of critical.

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determined by extrapolation to zero reciprocal count rate.

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7.

Dumy fuel rods consisting of empty aluminum pipes must be installed in every f

I fuel rod position not occupied with fuel.

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8.

The cask cavity must be dry (no free water) when delivered to a carrier for r

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i da Page 4 - Certiticate No. 9103 - Revision No. 6 - Docket No. 71-9103 I

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9.

The cavity pressure relief valve must be tested at set pressure every twelve n

(12) months.

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10. Additional contents in accordance with Nuclear Assurance Corporation application I

qj dated February 17, 1982.

Fuel rods must be contained within a fuel basket to l

4 minimize damage to the rods during normal conditions of transport.

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l1 11.

In addition to the requirements of Subpart G of 10 CFR Part 71:

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5 ptr d

(a) Priortoeachshiprxot!\\tk1e Buna-k rtbbe'r/ lid gasket (s) (if opened) r:ust l

d be inspected..Thes'e gaskets must be replaced if inspection shows any a

defects or rep' lace'both gaskets every twelve-(12) months, whichever i

d occurs first. ' Cavity lines must be sealed with, appropriate sealant t

4 applied to threads of pipe caps or plugs, r'i I

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(b) The package must be maintained in accordance with Section Vill of l

4 the appilcation. 1

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(c) The package must be prepared for shipment and operated in accordance 3

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with UNIT-NL1-040, supplement dated Septeraber 20, 1988.

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12. The cask contents must be so limited under normal conditions' of transport that l

5 the dose rate will not exceed 10 rren/hr.at one meter from the external surface y

of the cask.

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l' 13.

The package authorized by this certificate is hereby approved for use under I

l the general license provisions of 10 CFR f 71.12.

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14.

Expiration date: October 31,1993.

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f REFERENCES i;t f

NL Industries, Inc. application dated September 7, 1977.

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Supplements dated: H( i, 1978; 0ecember 16 1985; and May 11. July 5, and a

r September 20, 1988, h

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1 FOR THE U.S. NUCLEAR REGULATORY COMMISSION j

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{'I l

l' Charles E. HacDonald, Chief il i

1 Transportation Branch l

Division of Safeguards and ja Transportation, NMSS g

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00713 'ce:

Date:

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