To sample molten salt and liquid metals, remote semi-automatic devices have been developed for engineering-scale experiments carried out in several laboratories. A sampling device for molten salt and liquid cadmium was installed in the engineering-scale electrorefiner at CRIEPI, as shown in Fig. 10.14. It sucks small amounts of liquids into stainless-steel tubes submerged at a predetermined depth. To separate the liquids from solid precipitates (such as oxides and intermetallic compounds), a metal frit is attached to the head of the stainless-steel tubes. By contrast, a sampling device for actinide metal ingots has been demonstrated during metal fuel fabrication for EBR-II, which uses a high-temperature vacuum injection­casting furnace equipped with quartz moulds to produce actinide metal rods. Because of the stirring effect of induction heating, the sample has sufficient homogeneity to be accepted as a reactor fuel.