ASTM C788-03(2015)
Standard Specification for Nuclear-Grade Uranyl Nitrate Solution or Crystals

Standard No.

ASTM C788-03(2015)

Release Date

2003

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C788-03(2021)

Latest

ASTM C788-03(2021)

Scope

1.1 This specification applies to nuclear-grade aqueous uranyl nitrate solution or crystals not exceeding 58201;% ²³⁵U intended for subsequent manufacture into either UF₆ (for feed to an enrichment plant) or direct conversion to uranium oxide (for use in reactors).

1.2 This specification is intended to provide the nuclear industry with a general standard for aqueous uranyl nitrate solution or crystals. It recognizes the diversity of manufacturing methods and the processes to which it is subsequently to be subjected. It is therefore anticipated that it may be necessary to include supplementary specification limits by agreement between purchaser and manufacturer. Different limits are appropriate depending on whether or not the uranyl nitrate is to be converted to UF₆ for subsequent processing.

1.3 The purpose of this specification is: (a) to define the impurity and uranium isotope limits for commercial standard uranyl nitrate, and (b) to define additional limits for reprocessed uranyl nitrate (or any mixture of reprocessed and commercial standard uranyl nitrate). For such uranyl nitrates, special provisions may need to be made to ensure that no extra hazard arises to the employees, the process equipment, or the environment.

1.4 The scope of this specification does not comprehensively cover all provisions for preventing criticality accidents, for health and safety, or for shipping. Observance of this standard does not relieve the user of the obligation to conform to all international, federal, state and local regulations for processing, shipping, or any other way of using the uranyl nitrate. An example of a U.S. Government Document is the Code of Federal Regulations, Title 10, Part 50 (latest edition).

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.

ASTM C788-03(2015) Referenced Document

• ANSI/ASME NQA-1 Quality Assurance Requirements for Nuclear Facility Applications
• ASTM C1233 Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
• ASTM C1295 Standard Test Method for Gamma Energy Emission from Fission Products in Uranium Hexafluoride
• ASTM C787 Standard Specification for Uranium Hexafluoride for Enrichment
• ASTM C799 Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Uranyl Nitrate Solutions
• ASTM C859 Standard Terminology Relating to Nuclear Materials
• ASTM C996 Standard Specification for Uranium Hexafluoride Enriched to Less Than 5% 235U1

ASTM C788-03(2015) history

• 2021 ASTM C788-03(2021) Standard Specification for Nuclear-Grade Uranyl Nitrate Solution or Crystals
• 2003 ASTM C788-03(2015) Standard Specification for Nuclear-Grade Uranyl Nitrate Solution or Crystals
• 2003 ASTM C788-03(2009) Standard Specification for Nuclear-Grade Uranyl Nitrate Solution or Crystals
• 2003 ASTM C788-03 Standard Specification for Nuclear-Grade Uranyl Nitrate Solution or Crystals
• 1998 ASTM C788-98 Standard Specification for Nuclear-Grade Uranyl Nitrate Solution