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Determination of density by gas pycnometry
With a pycnometer the amount of a certain medium (liquid or helium or other analytical gases) displaced by a solid can be determined. This technique is used for density determination of finely ground or bulky solids, differentiation between solids, quality insurance, determination of open and closed pore volume in foams and determination of so-called vacuolar volume in the quality control of milk powders. 


3P Instruments 3P densi 100 density analyzer
The 3P densi 100 is a compact and automated density analyzer for powders and solids as well ast for the characterization of foamed materials. By use of these pycnometers, the sample gets filled in the sample cell; sample preparation takes place in continuous or pulsed gas flow or optionally under vacuum. The rinsing, measurement and possible repeat measurement are operated automatically. Repeat measurements optionally are effected either by pre-setting a user specified tolerance (auto-stop) or a user specified number of runs.