Regulatory Guide 5.19

From kanterella
Revision as of 17:14, 18 July 2018 by StriderTol (talk | contribs) (Created page by program invented by StriderTol)
Jump to navigation Jump to search
Methods for the Accountability of Plutonium Nitrate Solutions
ML13064A125
Person / Time
Issue date: 01/31/1974
From:
US Atomic Energy Commission (AEC)
To:
References
RG-5.019
Download: ML13064A125 (1)


January 1974 I U.8. ATOMIC ENERGY COMMISSION

REGU LATOY GUll 0 DIRECTORATE

OF REGULATORY

STANDARDS REGULATORY

GUIDE 5.19 METHODS FOR THE ACCOUNTABILITY

OF PLUTONIUM

NITRATE SOLUTIONS E

A. INTRODUCTION

Section 70.22(b) of 10 CFR Part 70, "Special Nuclear Material," requires, in part, that an applicant for a license to possess certain quantities of special nuclear material in an unsealed form describe his procedures for control of and accounting for special nuclear material.This regulatory guide identifies methods and criteria acceptable to the AEC Regulatory staff for the sampling, subsampling, sample handling, chemical and isotopic analysis, and error analysis for the accountability of plutonium nitrate solutions.

B. DISCUSSION

The Lawrence Livermore Laboratory and the U.S.Atomic Energy Commission have recently published a document (WASH 1282) entitled "Methods for the Accountability of Plutonium Nitrate Solutions." This document describes methods for the sampling, subsampling, sample handling, chemical and isotopic analysis, and error analysis of plutonium nitrate solutions.

Topics included in the report under the section on sampling methods are discussion and rationale of sampling, homogeneity problems, and the sampling of bottles and tanks. The sections on sample handling and subsampling include discussions on containers, labeling, and sources of error. The analytical procedures presented and discussed are (1) controlled-potential coulometry, amperometry, and modified amperometry as assay methods; (2) ion exchange cleanup, spectrographic analysis, and iron determination by spectrophotometry, for impurity removal or deter-mination;

(3) free acid determination;

and (4) isotopic analysis by mass spectrometry and alpha-pulse-height analysis (Pu-238).

The bases for the selection of the destructive analytical methods described in this docu-ment are as follows: 1. High precision and accuracy combined with, ease of use and low cost.2. Broad applicability to various -types of solutions and plutonium concentrations and relative freedom from interfering substances.

3. Thoroughness with which the methods have been studied by various research laboratories, the extent and success of their use under actual plant conditions, and the historical evaluations they have been subjected to under various round robin programs.C. REGULATORY

POSITION The accountability methods and related procedures for the sampling, subsampling, sample handling, chemical and isotopic analysis, and error analysis of plutonium nitrate solutions contained in WASH 1282, "Methods for the Accountability of Plutonium Nitrate Solutions," I are generally acceptable and provide an adequate basis for the accountability of plutonium nitrate solutions.

' Copies may be obtained from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C.20402 USAEC REGULATORY

GUIDES Rogulatory Guides am issued to decribe and make t selldble to the public methods acceptable to the AEC Regulatory staff of Ignlumentinlg specific parts of the Commission's regulations, to delineate techniques Lind by the staff in aimluating specific problems or postulated accidents, or to provide guidanoe to applicants.

Regulatory Guides ae not substitutes for reguletlons end complianc with them is not required.

Methods and solutions diflermt from those at out in the guides will be accaptable If they provide a basis for thi ftidingts requisite to te ssuanos or ntinuani of a pmIlt or limens by the Comfinsion.

Publiehed guides will be revised periodically, asappropriate, to accommodate comments and to reflect ness infornmtlon or exparlara.

Copies of published guides nwy be obtained by request indicating the dhisions desired to the US. Atomic Energy Commlsion, Washingion, D.C. 20546.Attention:

Director of Regulatory Standards.

Comments and suggestions for IIprovenut In thes guide, encouraged and should be nt to the of the Commkion., U.S. Atomic Ensegy Commision, Washington, OZ.. 2V0548 Attention:

Chief, Public Prooeedings Staff.The puide are issued in the follorsilnf tan broad divisions:

1. Power Reactors 2. Research and Test Reactors 3. Fuel and Materials Fasclles 4. Environmental and Sting S. Materials and Plant Protection

6. Products 7. Trwalsoratlon S. occupatIonial M ealth 9. Anttrust Review 10. Genal