ISO 18213-1:2007

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ISO 18213-1:2007 is an international standard that provides guidance on tank calibration and volume determination for nuclear process tanks equipped with pressure-measurement systems. It focuses on tank calibration using bubbler probe systems for clear, homogeneous liquids at thermal and static equilibrium. The standard outlines procedures for planning calibration exercises, obtaining data for volume equations, and using those equations to determine tank liquid volumes.