核燃料技术钚的可控电位库仑测量

[中文适用范围]： 本文件规定了核级纯钚硝酸盐溶液电化学测量的分析方法，单次测定的扩展不确定度不超过±0.2%，置信度为0.95（覆盖系数，k = 2）。该方法适用于含钚超过0.5 g/l的水溶液和含钚在4 mg至15 mg之间的测试样品。将该技术应用于含钚少于0.5 g/l的溶液和含钚少于4 mg的测试样品，需要用户进行实验证明，以达到适用的数据质量目标。 [外文原描述]： This document specifies an analytical method for the electrochemical measurement of pure plutonium nitrate solutions of nuclear grade, with an expanded uncertainty not exceeding ±0,2 % at the confidence level of 0,95 for a single determination (coverage factor, k = 2). The method is applicable for aqueous solutions containing plutonium at more than 0,5 g/l and test samples containing plutonium between 4 mg and 15 mg. Application of this technique to solutions containing plutonium at less than 0,5 g/l and test samples containing plutonium at less than 4 mg requires experimental demonstration by the user that applicable data quality objectives will be met.