Document Center is acquired by Nimonik

Scope

1.1 This test method covers the determination of milligram quantities of plutonium in unirradiated uranium-plutonium mixed oxide having a U/Pu ratio range of 0.1 to 10. This test method is also applicable to plutonium metal, plutonium oxide, uranium-plutonium mixed carbide, various plutonium compounds including fluoride and chloride salts, and plutonium solutions.

1.2 The recommended amount of plutonium for each aliquant in the coulometric analysis is 5 to 10 mg. Precision worsens for lower amounts of plutonium, and elapsed time of electrolysis becomes impractical for higher amounts of plutonium.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.

Significance and Use

This test method is to be used to ascertain whether or not materials meet specifications for plutonium content or plutonium assay, or both.

A chemical calibration of the coulometer is necessary for accurate results.

FIG. 1 Example of a Cell Design Used at Los Alamos National Laboratory (LANL)

Keywords

controlled-potential coulometry; plutonium analysis; plutonium at platinum electrode; plutonium in sulfuric acid; plutonium-uranium mixtures; ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)

To find similar documents by ASTM Volume:

12.01 (Nuclear Energy (I))

To find similar documents by classification:

27.120.30 (Fissile materials and nuclear fuel technology Including raw materials Radioactive wastes, see 13.030.30)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.