ML20209E191

Application for Amend to License SNM-1107,adding Criteria for Positive Pressure Gloveboxes to Provide Atmosphere Control Where Required.Page Changes Encl.Fee Paid

ML20209E191
Person / Time
Site:	Westinghouse
Issue date:	08/08/1986
From:	Mardi A WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	Crow W NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
27303, LA-86-57, NUDOCS 8609100103
Download: ML20209E191 (4)

Text

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'v' Westinghouse Water Reactor gyuis Pennsvivania 1523003s5 Electric Corporation Divisions LA 86-57 August 8, 1986 l

k U. S. Nuclear Regulatory Commission Office of Nuclear Materials Safety and Safeguards g-

-h ATTN: Mr. W. T. Crow, Acting Chief

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Division of Fuel Cycle and Material Safety f

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~2 Uranium Fuel Licensing Branch g

4 Washington, DC 20555 gwogy 7 b

Gentlemen:

REFERENCE:

SNM-1107, Docket 70-1151 Westinghouse Electric Corporation hereby submits a

license amenoment application to modify the ventilation equipment section of SNM-1107, adding criteria for positive pressure gloveboxes.

The purpose of these gloveboxes is to provide atmosphere control where this is required for product quality.

Enclosed are changed pages to the license describing these criteria.

A check for $150.00 was mailed in aavance (check numoer 854806 dated August 5, 1986) to cover the costs of an administrative amendment.

Very truly yours,

.fo u-A. J. Nardi, Manager NES License Administration lb WP1014E:3p.48 g

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E SCHEDULE OF REVISIONS Page Revision Page Revision Number Number Number Number _

2.1-5 2

2.3-19 2

2.2-1 2

2.3-20 2

2.2-2 2

2.4-1 3

2.2-3 4

2.5-1 4

2.2-4 3

2.6-1 4

2.2-5 3

2.7-1 3

2.2-6 2

2.7-2 3

2.2-7 2

2.7-3 2

~

2.2-8 2

2.7-4 2

2.2-9 2

2.7-5 2

2.2-10 2

2.7-6 2

2.2-11 2

3.0-1 2

2.3-1 2

3.1-1 2

2.3-2 2

3.1-2 2

2.3-3 3

3.1-3 2

2.3-4 2

3.1-4 2

2.3-5 2

3.1-5 2

2.3-6 2

3.1-6 2

2.3-7 2

3.1-7 2

2.3-8 2

3.1-8 2

2.3-9 2

3.1-9 2

2.3-10 3

3.1-10 2

2.3-11 2

3.1-11 2

2.3-12 2

3.1-12 3

2.3-13 2

3.2-1 2

2.3-14 2

3.2-2 2

2.3-15 3

3.2-3 2

2.3-16 celeted 3.2-4 3

2.3-17 2

3.2-5 2

2.3-18 2

3.2-6 2

Docket No. 70-1151 Initial Submittal Date:

4/30/03 Page No.

vi License No. SNM-1107 Revision Submittal Date: 6/08/86 Revision No.

5

REVISION RECORD Revision Date of Number Revision Pages Revised Revision Reason 1

12/12/83 1.9-52 through 1.9-76 Respond to NRC questions inclusive, 2.2-10, in NRC letter dated 2.2-11, 2.3-1, 4.8-1 April 6, 1983.

2 3/26/84 All pages resubmitted Respond to NRC questions as Revision 2.

See in NRC lecters dated submittal letter January 26, 1984 and attachment for oe-February 23, 1984.

scription of changes.

3 1/4/85 All pages resubmitted Respond to NRC as Revision 3.

See re-questions.

vision lines in right hand columns of each page for specific changes.

4 6/21/85 New pages 2.2-12 and Licensing of uranyl 2.2-13 and revised nitrate storage tanks.

pages 2.3.1 and 2.3.2.

See revision lines in right hand columns of each page for specific changes.

5 5/14/86 2.5-1 and 2.6-1.

Update of Emergency Plan Section.

6 8/8/86 2.2-3 Added criteria for positive pressure gloveboxes.

Docket No. 70-1151 Initial Submittal Date:

4/30/83 Page No.

vill License No. SNM-1107 Revision Submittal Date: 8/08/86 Revision No.

5

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2.2.5.3' When containment of uranium dust by conventional ventilation hoods is not possible or impractical, gloveboxes may be used.

Ventilation systems for gloveboxes and other completely enclosed devices shall be designed and operated with a nominal negative internal pressure (approximately 0.1 inch water minimum with respect to ambient air) sufficient to maintain the concentration of airborne radioactivity from the serviced equipment below 10CFR20 limits.

Gloveboxes shall be equipped with instrumentation for measuring differential pressure, which shall be checked at least monthly when the equipment is in operation.

When atmosphere control is required for product quality and where there is unencapsulated rauloactive material in ventilated gloveboxes, the following criteria shall apply:

(1) Gloveboxes shall be operated with a nominal positive internal pressure.

(2) Internal atmospheres shall be continuously recirculated through HEPA filters at a flow rate designed to attain approximately 20 atmosphere changes per hour.

(3) Alarms shall be provided to indicate when the pressure exceeds the nominal positive pressure.

(4) Representative air sampling ~ shall be performed at operator work locations.

(5) Gloveboxes shall be designed for high integrity.

'2.2.5.4 Ventilation hoods and gloveboxes shall be constructed primarily of metal, glass and/or fire resistant plastic.

Plastics shall conform to a Class I fire rating (e.g., Lexan).

2.2.5.5 Ducts shall be designed to minimize accumulations of SW and shall be inspected for SW on a routine basis commensurate with the potential for SW accumulations.

2.2.5.6 Exhausts from gloveboxes, hoods, local exhaust and similar devices, when employed for radiation protection purposes, shall be passed through HEPA filtration.

HEPA filters shall be replaced either on a routine schedule or when airborne concen,trations, hood velocities, differential pressure drop or DOP (or acceptable suustitute) cenetration measurements indicate that replacement is necessary.

The maximum differential pressure permitted across a HEPA filter shall be 8 inches water for negative pressure systems and 4 inches water for recirculating positive pressurized systems.

2.2.5.7 Exhausts from inplant recirculating air cleanup systems, including gloveboxes, hoocs, local exhaust and similar devices shall either be penetration tested or sampled for airborne raoloactivity concentrations at least monthly.

2.2.6 Air Sampling 2.2.6.1 Air sampling equipment selected to be suitable for detecting and evaluating the concentration of airborne radioactive Docket No. 70-1151 Initial Submittal Date:

4/30/83 Page No.

2.2-3 License No. SW -1107 Revision Submittal Date: 8/8/86 Revision No.

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