ASTM C1514 - 08(2017) - Standard Test Method for Measurement of <sup>235</sup>U Fraction Using Enrichment Meter Principle

ASTM C1514 - 08(2017)

Standard Test Method for Measurement of 235U Fraction Using Enrichment Meter Principle

Status : Current   Published : January 2017



1.1 This test method covers the quantitative determination of the fraction of 235U in uranium using measurement of the 185.7 keV gamma-ray produced during the decay of 235U.

1.2 This test method is applicable to items containing homogeneous uranium-bearing materials of known chemical composition in which the compound is considered infinitely thick with respect to 185.7 keV gamma-rays.

1.3 This test method can be used for the entire range of 235U fraction as a weight percent, from depleted (0.2 % 235U) to highly enriched (97.5 % 235U).

1.4 Measurement of items that have not reached secular equilibrium between 238U and 234Th may not produce the stated bias when low-resolution detectors are used with the computational method listed in Annex A2.

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

1.6  This standard may involve hazardous materials, operations, and equipment. 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.

Standard NumberASTM C1514 - 08(2017)
TitleStandard Test Method for Measurement of 235U Fraction Using Enrichment Meter Principle
Publication Date01 January 2017
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Chemical process, Enrichment meter principles, Enrichment process, Non-destructive evaluation, Non-destructive examination, Uranium, Uranium fuel, Uranium-235
File Size117 KB

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