Regulatory Guide 5.2

Classification of Unirradiated Plutonium and Uranium Scrap

ML12243A290
Person / Time
Issue date:	12/20/1972
From:	US Atomic Energy Commission (AEC), Office of Nuclear Regulatory Research
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References
RG-5.002
Download: ML12243A290 (1)

U.S. ATOMIC ENERGY COMMISSION

REGULATORY

GUI S DIRECTORATE

OF REGULATORY

STANDARDS REGULATORY

GUIDE 6.2 CLASSIFICATION

OF UNIRRADIATED

PLUTONIUM

AND URANIUM SCRAP 12/20/72 DE

A. INTRODUCTION

Part 70 of the Atomic Energy Commission's regulations requires each licensee to maintain material control and accounting procedures for the special nuclear material in his possession under license. A key component of such a system is an accurate, measured material balance. A significant factor in obtaining such a material balance is the determination of the quantity of nuclear material contained in inventories of heterogeneous scrap. Segregation and identification of various types and classes of such scrap can materially assist in the determination of the nuclear material contents by providing information necessary for the selection of appropriate measurement methods and for the correction of measurement results for such things as impurities, poisons, self-absorption, or self-multiplication.

This guide describes acceptable standard classifications for both plutonium and uranium"cold" scrap to aid in determining material balances.

B. DISCUSSION

Subcommittee Nl5.], of the American National Standards Institute (ANSI) Standards Committee NI5, Methods of Nuclear Materials Control, has developed two standards for the classification of "cold" scrap containing plutonium or uranium. The standard for the classification of uranium scrap was approved by ANSI in 1970. The standard for the classification of plutonium scrap was approved by the ANSI Board of Standards Review on July 25, 1972.C. REGULATORY

POSITION The classifications for plutonium and uranium"cold" scrap contained in the following ANSI standards are generally acceptable and are sufficiently flexible to be applicable to a wide variety of nuclear facilities:

ANSI N15.1-1970

Classification of Unirradiated Uranium Scrap.1 ANSI N15.10-1972 Classification of Unirradiated Plutonium Scrap.Copies may be obtained from the American National Standards Institute, Inc., 1430 Broadway, New York, New York 1001

8. USAEC REGULATORY

GUIDES Copies of published guides may be obtained by request indicating the divisions desired to the US. Atomic Energy Commission, Washington, D.C. 20545, Regulatory Guides are issued to describe and make available to the public Attention:

Director of Regulatory Standards.

Comments and suggestions for methods acceptable to the AEC Regulatory staff of implementing specific parts of Improvements in these guides are encouraged and should be sent to the Secretary the Commission's regulations, to delineate techniques used by the staff in of the Commission, U.S. Atomic Energy Commission, Washington.

D.C. 20545, evaluating specific problems or postulated accidents, or to provide guidance to Attention:

Chief, Public Proceedings Staff.applicants.

Regulatory Guides are not substitutes for regulations and compliance with them is not required.

Methods and solutions different from those set out In The guides are issued in the following ten broad divisions:

the guides will be acceptable if they provide a basis for the findings requisite to the issuance or continuance of a permit or license by the Commission.

1. Power Reactors 6. Products 2. Research and Test Reactors

7. Transportation

3. Fuels and Materials Facilities

8. Occupational Health Published guides will be r ev.ted pariodicaliy, as appropriate, to accommodate

4. Environmental and Siting 9. Antitrust Review comments and to reflect new informatior o, experience.

5. Materials and Plant Protection

10. General