Over deze norm
This part of ISO 18213 specifies a procedure for making accurate determinations of the densities of process liquids from in-tank measurements of the liquid content. This procedure is applicable to tanks equipped with pneumatic systems for determining the liquid content that have two or more bubbler probes of differing lengths. It is necessary that the probes be fixed relative to each other and to the tank in which they are installed. The methods presented in this part of ISO 18213 yield acceptable results only for clear (i.e. free of suspended solids) liquids that are both homogeneous in concentration and at thermal equilibrium. The accuracy of the method is limited by - the accuracy of the density determinations for the calibration liquid, and - the number and accuracy of the liquid height determinations used in the calculations.
||Splijtstoftechnologie - Kalibratie en inhoudsbepaling van vaten voor de boekhouding van kerntechnische materialen - Deel 6: Nauwkeurige bepaling van de dichtheid van vloeistof in meetvaten die zijn uitgerust met dompelbuizen
||Nuclear fuel technology - Tank calibration and volume determination for nuclear materials accountancy - Part 6: Accurate in-tank determination of liquid density in accountancy tanks equipped with dip tubes