ASTM C1742-17 PDF

Scope: 1.1 This is a quantitative test method applicable to determining the mass percent of uranium isotopes in uranium hexafluoride (UF6) samples with 235 U concentrations between 0.1 and 5.0 mass %. 1.2 This test method may be applicable for the entire range of 235 U concentrations for which adequate standards are available.2 1.3 This test method is for analysis by a gas magnetic sector mass spectrometer with a single collector using interpolation to determine the isotopic concentration of an unknown sample between two characterized UF6 standards. 1.4 This test method is to replace the existing test method currently published in Test Methods C761 and is used in the nuclear fuel cycle for UF6 isotopic analyses. 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 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. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM C1742-17 Referenced Document

ASTM C1068 Standard Guide for Qualification of Measurement Methods by a Laboratory Within the Nuclear Industry
ASTM C761 Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium Hexafluoride
ASTM C787 Standard Specification for Uranium Hexafluoride for Enrichment
ASTM C859 Standard Terminology Relating to Nuclear Materials
ASTM C996 Standard Specification for Uranium Hexafluoride Enriched to Less Than 5% 235U1

2017 ASTM C1742-17 Standard Test Method for Isotopic Analysis of Uranium Hexafluoride by Double Standard Single-Collector Gas Mass Spectrometer Method
2010 ASTM C1742-10 Standard Test Method for Isotopic Analysis of Uranium Hexafluoride by Double Standard Single-Collector Gas Mass Spectrometer Method