标准编号：ISO 18213-5:2008
中文名称：核燃料技术 用于核材料衡算计量的容器校准和容量测定 第5部分：装备快速起泡率浸管的衡算计量罐中液体高度的精确测定
英文名称：Nuclear fuel technology — Tank calibration and volume determination for nuclear materials accountancy — Part 5: Accurate determination of liquid height in accountancy tanks equipped with dip tubes, fa
发布日期：2008-03
标准范围
This part of ISO 18213 specifies a procedure for making accurate determinations of liquid height in nuclear-materials-accountancy tanks that are equipped with pneumatic systems for determining the liquid content.With such systems, gas is forced through a probe (dip tube) whose tip is submerged in the tank liquid. Thepressure required to induce bubbling is measured with a manometer located at some distance from the tip ofthe probe. This procedure applies specifically when a fast bubbling rate is employed.A series of liquid height determinations made with a liquid of known density is required to estimate a tank'scalibration equation (see ISO 18213-1), the function that relates the elevation (height) of a point in the tank toan independent determination of tank volume associated with that point. For accountability purposes, thetank's measurement equation (the inverse of its calibration equation) is used to determine the volume ofprocess liquid in the tank that corresponds to a given determination of liquid height.
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