ASTM C1689-08a(2014)
Standard Practice for Subsampling of Uranium Hexafluoride
- Standard No.
- ASTM C1689-08a(2014)
- Release Date
- 2008
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM C1689-21
- Latest
- ASTM C1689-21
- Scope
5.1 Uranium hexafluoride is normally produced and handled in large (typically 1- to 14-ton) quantities and must, therefore be characterized by reference to representative samples. The samples are used to determine compliance with the applicable commercial Specifications C996 and C787 by means of the appropriate test method (for example, Test Method C761 and references therein). The quantities involved, physical properties, chemical reactivity, and hazardous nature of UF6 are such that for representative sampling, specially designated equipment must be used and operated in accordance with the most carefully controlled and stringent procedures. This practice indicates appropriate principles, equipment and procedures currently in use for subsampling of liquid UF6. It is used by UF6 converters, enrichers and fuel fabricators to review the effectiveness of existing procedures or to design equipment and procedures for future use. Other subsampling procedures such as UF6 vapor sampling are not directly representative of the chemical quality of liquid UF6.
5.2 It is emphasized that this test guide is not meant to address conventional or nuclear criticality safety issues.
1.1 This practice is applicable to subsampling uranium hexafluoride (UF6), using heat liquefaction techniques, from bulk containers, obtained in conformance with C1052, into smaller sample containers, which are required for laboratory analyses.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 It is assumed that the liquid UF6 being sampled comprises a single quality and quantity of material. This practice does not address any special additional arrangement that might be required for taking proportional or composite samples.
1.4 The number of samples to be taken, their nominal sample weight, and their disposition shall be agreed upon between the parties.
1.5 The scope of this practice does not include provisions for preventing criticality incidents.
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.
ASTM C1689-08a(2014) Referenced Document
- ANSI N14.1 for Nuclear Materials - Uranium Hexafluoride - Packagings for Transport
- ASTM C1052 Standard Practice for Bulk Sampling of Liquid Uranium Hexafluoride
- 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
ASTM C1689-08a(2014) history
- 2021 ASTM C1689-21 Standard Practice for Subsampling of Uranium Hexafluoride
- 2008 ASTM C1689-08a(2014) Standard Practice for Subsampling of Uranium Hexafluoride
- 2008 ASTM C1689-08a Standard Practice for Subsampling of Uranium Hexafluoride
- 2008 ASTM C1689-08 Standard Practice for Subsampling of Uranium Hexafluoride
