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ASTM C698-2010
Standard Test Methods for Chemical,Mass Spectrometric,and Spectrochemical Analysis of Nuclear-Grade Mixed Oxides ((U,Pu)O2)
适用范围：<p>Mixed oxide, a mixture of uranium and plutonium oxides, is used as a nuclear-reactor fuel in the form of pellets. The plutonium content may be up to 10 weight %, and the diluent uranium may be of any <sup>235</sup>U enrichment. In order to be suitable for use as a nuclear fuel, the material must meet certain criteria for combined uranium and plutonium content, effective fissile content, and impurity content as described in Specification <a href="http://myastm.astm.org/SUBSCRIPTION/NewValidateSubscription.cgi?C833-HTML">C833</a>.</p> <p>The material is assayed for uranium and plutonium to determine whether the plutonium content is as specified by the purchaser, and whether the material contains the minimum combined uranium and plutonium contents specified on a dry weight basis.</p> <p>Determination of the isotopic content of the plutonium and uranium in the mixed oxide is made to establish whether the effective fissile content is in compliance with the purchaser''s specifications.</p> <p>Impurity content is determined to ensure that the maximum concentration limit of certain impurity elements is not exceeded. Determination of impurities is also required for calculation of the equivalent boron content (EBC).</p><p id="s00002">1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade mixed oxides, (U, Pu)O<sub>2</sub>, powders and pellets to determine compliance with specifications. </p> <p id="s00003">1.2 The analytical procedures appear in the following order:</p>
实施日期： 2010-06-01
中标分类号： F46 - 能源、核技术 - 核材料、核燃料及其分析试验方法
ICS分类号： 27.120.30 - 能源和热传导工程 - 裂变物质
标准组织： ASTM - 美国材料与试验协会标准
全文来源： WF
英文关键词： Carbon content--nuclear materials Chloride analysis--nuclear applications Fluoride content Isotopic analysis Mass spectrometry--nuclear materials/applications Mixed oxides (MOX) Moisture analysis--nuclear materials Nitrogen content--nuclear materials Plutonium--isotopic analysis Rare earth content Spectrochemical analysis Sulfur--nuclear materials Trace elements--spectrochemical analysis Tungsten content Uranium content Volatile matter content--nuclear materials
语种： 汉语
页数： 28
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