Designation: C788 − 03 (Reapproved 2015)Standard Specif i cation forNuclear-Grade Uranyl Nitrate Solution or Crystals 1This standard is issued under the f i xed designation C788; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (´) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specif i cation applies to nuclear-grade aqueousuranyl nitrate solution or crystals not exceeding 5 %235 Uintended for subsequent manufacture into either UF 6 (for feedto an enrichment plant) or direct conversion to uranium oxide(for use in reactors).1.2 This specif i cation is intended to provide the nuclearindustry with a general standard for aqueous uranyl nitratesolution or crystals. It recognizes the diversity of manufactur-ing methods and the processes to which it is subsequently to besubjected. It is therefore anticipated that it may be necessary toinclude supplementary specif i cation limits by agreement be-tween purchaser and manufacturer. Different limits are appro-priate depending on whether or not the uranyl nitrate is to beconverted to UF 6 for subsequent processing.1.3 The purpose of this specif i cation is: (a) to def i ne theimpurity and uranium isotope limits for commercial standarduranyl nitrate, and (b) to def i ne additional limits for repro-cessed uranyl nitrate (or any mixture of reprocessed andcommercial standard uranyl nitrate). For such uranyl nitrates,special provisions may need to be made to ensure that no extrahazard arises to the employees, the process equipment, or theenvironment.1.4 The scope of this specif i cation does not comprehen-sively cover all provisions for preventing criticality accidents,for health and safety, or for shipping. Observance of thisstandard does not relieve the user of the obligation to conformto all international, federal, state and local regulations forprocessing, shipping, or any other way of using the uranylnitrate. An example of a U.S. Government Document is theCode of Federal Regulations, Title 10, Part 50 (latest edition).1.5 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards: 2C787 Specif i cation for Uranium Hexaf l uoride for Enrich-mentC799 Test Methods for Chemical, Mass Spectrometric,Spectrochemical, Nuclear, and Radiochemical Analysis ofNuclear-Grade Uranyl Nitrate SolutionsC859 Terminology Relating to Nuclear MaterialsC996 Specif i cation for Uranium Hexaf l uoride Enriched toLess Than 5 %235 UC1233 Practice for Determining Equivalent Boron Contentsof Nuclear MaterialsC1295 Test Method for Gamma Energy Emission fromFission and Decay Products in Uranium Hexaf l uoride andUranyl Nitrate Solution2.2 ANSI Standard: 3ANSI/ASME NQA-1 Quality Assurance, Requirements forNuclear Facility Applications2.3 U.S. Government Document: 4Code of Federal Regulations, Title 10, (Energy), Part 50,Domestic Licensing of Production and Utilization Facili-ties3. Terminology3.1 Def i nitions of Terms Specif i c to This Standard:3.1.1 Terms shall be def i ned in accordance with Terminol-ogy C859, except for the following:3.1.1.1 commercial standard uranyl nitrate—refers to ura-nyl nitrate made from unirradiated uranium. However, it isrecognized that some contamination with reprocessed uranium1 This specif i cation is under the jurisdiction of ASTM Committee C26 onNuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.02 on Fueland Fertile Material Specif i cations.Current edition approved June 1, 2015. Published June 2015. Originallyapproved in 1976. Last previous edition approved in 2009 as C788 – 03 (2009).DOI: 10.1520/C0788-03R15.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at service@astm.org. For Annual Book of ASTMStandards volume information, refer to the standard’s Document Summary page onthe ASTM website.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http://www.ansi.org.4 Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://www.access.gpo.gov.Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1 Copyright by ASTM Int'l (all rights reserved); Fri Oct 20 11:57:28 EDT 2017Downloaded/printed byUniversity of Edinburgh (University of Edinburgh) pursuant to License Agreement. No further reproductions authorized.
