FIELD: measuring equipment.
SUBSTANCE: device comprises a sample fixation tank 1, an air tube 2, the cavity of which is connected with the cavity of the tank 1, and a tank 1 displacement mechanism 3. The tank 1 is provided with a lid 4 and a bottom with a hole, the diameter of which is smaller than the diameter of the droplet of the withdrawn liquid. The cavity of the tube 2 is connected with the cavity of the tank 1 through the lid 4. Inside the cylinder 1 there is a locking element 5, the material of which has a density less than the density of the withdrawn liquid, and it is thus designed to move along the height when the level of the sample in the tank 1 changes.
EFFECT: invention allows to eliminate the blockage of the tube cavity with the congealing metal and the possibility of sample leakage during transportation.
3 cl, 1 dwg
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