Uranium assay determination using Davies and Gray titration: an overview and implementation of GUM for uncertainty evaluation

K. Mathew; S. Bürger; S. Vogt; P. Mason; M. Morales-Arteaga; U. Narayanan

doi:10.1007/s10967-009-0186-4

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 282: Issue 3

Uranium assay determination using Davies and Gray titration: an overview and implementation of GUM for uncertainty evaluation

Authors:

K. Mathew

K. Mathew New Brunswick Laboratory Department of Energy 9800 South Cass Avenue, Bldg 350 Argonne IL 60439 USA

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S. Bürger

S. Bürger New Brunswick Laboratory Department of Energy 9800 South Cass Avenue, Bldg 350 Argonne IL 60439 USA

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S. Vogt

S. Vogt New Brunswick Laboratory Department of Energy 9800 South Cass Avenue, Bldg 350 Argonne IL 60439 USA

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P. Mason

P. Mason New Brunswick Laboratory Department of Energy 9800 South Cass Avenue, Bldg 350 Argonne IL 60439 USA

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M. Morales-Arteaga

M. Morales-Arteaga New Brunswick Laboratory Department of Energy 9800 South Cass Avenue, Bldg 350 Argonne IL 60439 USA

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, and

U. Narayanan

U. Narayanan New Brunswick Laboratory Department of Energy 9800 South Cass Avenue, Bldg 350 Argonne IL 60439 USA

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Pages:: 939–944

Online Publication Date:: 21 Jul 2009

Publication Date:: 01 Dec 2009

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-009-0186-4

Keywords:: Uranium assay; Davies and Gray Titration; Uncertainties; ISO GUM; Safeguards measurements

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Abstract

The International Organization for Standardization (ISO) Guide to the expression of Uncertainty in Measurement (GUM) was developed to meet the demand for a standardized way of evaluating and expressing uncertainties. The Davies and Gray (D&G) titrimetry method is routinely used in nuclear safeguards for uranium accountability measurement and a statement of the uncertainty that can reasonably be attributed to the measured assay value is therefore of importance. A mathematical model for an uncertainty evaluation of D&G measurements in compliance with ISO GUM is presented. This is illustrated by a numerical example and the utilization of the uncertainty budget is explored.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)