Using a densimeter or a pycnometer.
A pycnometer is such a tool. It is a carefully calibrated glass container with a close-fitting stopper. Since the volume is accurately known, a simple mass balance may be used to determine the mass of your unknown liquid. There are also techniques available for measuring the density of a non-soluble powder, using the same apparatus. In normal use, the pycnometer is filled with your unknown fluid, and weighed. Then the device is cleaned thoroughly of any residue, and a reference fluid such as water or mercury is used to fill the pycnometer. Simple arithmetic suffices to work out the density of the unknown material. Sometimes called the 'specific gravity bottle'.
pycnometer technique involves the intrusion of a non-wetting liquid at high pressure into a material through the use of a porosimeter. Porosimetry is an analytical technique used to determine various quantifiable aspects a materials porous nature, such as pore diameter, total proe volume, surface area, bulk density, true density etc. you can read more in the related link
Examples: balance, viscometer, densimeter, thermometer, pipette, burette, refractometer, nephelometer, pyrometer, pycnometer, sclerometer, pH-meter, conductometer, etc.
calyx is the other name for stamen
1000-1048: Pycnometer: Abū Rayhān al-Bīrūnī
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The pycnometer method is more accurate than the hydrometer method because it uses an analytical balance.
According to the Wikipedia article on the gas pycnometer, the first patent was filed by John E. Shea on 13 Nov 1978 and it was issued on 08 Apr 1980.
Using a densimeter or a pycnometer.
A. M. Geddis has written: 'Rapid estimate of solid volume in large tuff cores using a gas pycnometer' -- subject(s): Sampling, Soils, Volcanic ash, tuff, Pycnometer
Pycnometer, Digital density meter
A conical cap is provided to a pscnometer to determine the volume of the test sample.
Density is the ratio beween the mass and the volume.Many devices exist in laboratory do determine the density: special analytical balance, pycnometer, helium pycnometer, densimeter (for liquids), electronic densimeter (for liquids) etc.; for perfect geometrical shapes the measurement of dimensions-calculation of volume-weighing are sufficient.
A major application of a micropycnometer is that it allows one to measure the density of a solution when one only has a small volume available. For example, I would like to know the density of an H2018 sample. This stuff costs several hundred dollars per mL. My desitometer requires a minimum of 1.2mL. If I had a micropycnomter, I could get away with only needing a fraction of that amount
An advantage of using a pycnometer is that the instrument does not have to be in direct contact with the fluid it is measuring.Ê A disadvantage could be that it can be easily broken as it is made out of glass.
A pycnometer is such a tool. It is a carefully calibrated glass container with a close-fitting stopper. Since the volume is accurately known, a simple mass balance may be used to determine the mass of your unknown liquid. There are also techniques available for measuring the density of a non-soluble powder, using the same apparatus. In normal use, the pycnometer is filled with your unknown fluid, and weighed. Then the device is cleaned thoroughly of any residue, and a reference fluid such as water or Mercury is used to fill the pycnometer. Simple arithmetic suffices to work out the density of the unknown material. Sometimes called the 'specific gravity bottle'.