ASTM-C1514:2008 Edition

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C1514-08 Standard Test Method for Measurement of ²³⁵U Fraction Using Enrichment Meter Principle

Published By	Publication Date	Number of Pages
ASTM	2008	8

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Categories: 27.120.30 - Fissile materials and nuclear fuel technology, ASTM

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Description

ASTM C1514-08

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

ASTM C1514

Scope

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.

Keywords

enrichment; UF₆; uranium, Calibration–nuclear analysis instrumentation; Enrichment meter principle; Low resolution detector; Nondestructive evaluation (NDE)–nuclear applications; Uranium-235

ICS Code

ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)

DOI: 10.1520/C1514-08

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use
2	Interferences Apparatus TABLE 1
3	Hazards Calibration Procedure Precision and Bias
4	TABLE 2 TABLE 3 TABLE 4
5	TABLE 5 TABLE 6 TABLE 7
6	Keywords A1. CALIBRATION METHOD USING A SINGLE CALIBRATION CONSTANT A1.1 A1.2 A1.3 A1.4 TABLE 8
7	A2. CALIBRATION USING A TWO-CONSTANT CALIBRATION A2.1 A2.2 A3. ATTENUATION CORRECTION A3.1 TABLE A3.1
8	A4. CHEMICAL FORM CORRECTION A4.1 A4.2 REFERENCES

Additional information

Standard Title	C1514-08 Standard Test Method for Measurement of <sup>235</sup>U Fraction Using Enrichment Meter Principle
Published Code	ASTM
Publication Date	2008
Pages Count	8
ICS Codes	27.120.30 - Fissile materials and nuclear fuel technology