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	Pycnometer, Automatic, for Density Determination: Ultra pycnometer and Penta pycnometer
		Ultra pycnometer 1000 are the ultimate instruments for measuring the true density and volume of powders, catalysts, pharmaceuticals, ceramics, carbons, building materials, rock cores, etc.
		The Penta pycnometer permits up to five samples to be loaded and then purged simultaneously.
		For laboratories with fewer density analysis needs, the single sample station Ultra pycnometer 1000 provides the same ease of operation and high performance as the Penta pycnometer.
	www.quantachrome.com /density/auto_pycnometer.html (109 words)

	Density (Site not responding. Last check: 2007-10-29)
		Weigh the empty dry pycnometer on an analytical balance and record the mass.
		As you manipulate the pycnometer, be sure not to touch the glass with your hands as residue and oils from your hands will impact the accuracy of the measurement of the mass.
		The difference between the mass of the empty pycnometer and the pycnometer when it is full yields the mass of the liquid that is within the pycnometer.
	wulfenite.fandm.edu /labtech/density.htm (773 words)

	NationMaster - Encyclopedia: Pycnometer (Site not responding. Last check: 2007-10-29)
		The large size fragments may now be tested with a helium pycnometer to determine the grain density of the sample, a second pycnometer, which uses a clay suspension as the working fluid, to determine the bulk density and porosity of the sample and a permeameter to determine the permeability of the sample.
		After testing with the helium pycnometer, the same fragment tested or a different, large size fragment may be tested with a clay pycnometer to determine the bulk density of the sample.
		To calibrate the helium pycnometer of the present invention to determine the exact volumes of the auxiliary chamber 56 and the sample chamber 58, steel balls having a known volume are used.
	www.nationmaster.com /encyclopedia/Pycnometer (1453 words)

	ISO - International Organization for Standardization
		ISO/TS 17892-3:2004 describes a test method for determining the particle density by the pycnometer method within the scope of the geotechnical investigations according to prEN 1997-1 and prEN 1997-2.
		The pycnometer method is based on the determination of the volume of a known mass of soil by the fluid displacement method.
		The pycnometer method applies to soil types with particle sizes under 4 mm.
	www.iso.org /iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=38516&ICS1=93&ICS2=20&ICS3=&scopelist=CATALOGUE (99 words)

	Process and apparatus for analyzing cutting from oil and gas wells - Patent 4608859
		The large size fragments may now be tested with a helium pycnometer to determine the grain density of the sample, a second pycnometer, which uses a clay suspension as the working fluid, to determine the bulk density and porosity of the sample and a permeameter to determine the permeability of the sample.
		After testing with the helium pycnometer, the same fragment tested or a different, large size fragment may be tested with a clay pycnometer to determine the bulk density of the sample.
		To calibrate the helium pycnometer of the present invention to determine the exact volumes of the auxiliary chamber 56 and the sample chamber 58, steel balls having a known volume are used.
	www.freepatentsonline.com /4608859.html (13110 words)

	Spacific Gravity (Asphalt) - Overview
		Vacuum pycnometers are used in Rice testing to determine the specific gravity of bituminous mixes.
		A transparent lid on the pycnometer allows the operator to observe the bubble release from the asphalt sample during the vacuum test.
		A-518 is a 1500 gram capacity pycnometer with a 4-in.
	www.durhamgeo.com /testing/asphalt/sp_gravity.htm (595 words)

	NationMaster - Encyclopedia: Density (Site not responding. Last check: 2007-10-29)
		For an irregularly shaped solid, the displacement can be used in place of L x W x H. A common device for measuring fluid density is a pycnometer.
		A device for measuring absolute density of a solid is a gas pycnometer.
		A common device for measuring fluid density is a pycnometer.
	www.nationmaster.com /encyclopedia/density (1431 words)

	Pycnometer - Wikipedia, the free encyclopedia
		The pycnometer or pyknometer is a device used for measuring fluid density, also known as a specific gravity bottle.
		A pycnometer is a flask with a close-fitting ground glass stopper with a fine hole through it, so a given volume can be accurately obtained.
		A sample in the form of a powder, to which the usual method of weighing cannot be used, can be put into the pycnometer.
	en.wikipedia.org /wiki/Pycnometer (197 words)

	pycnometer cups!
		Micromeritics offer three sizes of their Helium Pycnometers to cater for users with small (1cc), medium (10cc) or large (100cc) volumes of material.
		For those of you who have never heard of Pycnometer, its the measurement of volume, usually by displacement of a fluid.
		Helium pycnometers use Helium as an inert gas to pervade the solid and sensing is by precision pressure transducers.
	www.particular.ie /pycnometer_cups!.htm (211 words)

	Pycnometer & Sample Splitter Products (Site not responding. Last check: 2007-10-29)
		Pycnometers are supplied in South Africa by Micron Scientific.
		Pycnometers are not the only highly effective scientific equipment to be supplied through this company, but pycnometers are one of their most popular forms of equipment to be supplied.
		With the use of their pycnometers, accurate results can be achieved in the case of scientific experiments to be performed.
	www.ms.co.za /pycnometer.html (102 words)

	Pycnometer articles and news from Start Learning Now (Site not responding. Last check: 2007-10-29)
		The '''pycnometer''' (from the Greek puknos, meaning "density", also called '''pyknometer''' or '''specific gravity bottle'''), is a flask with a close-fitting ground glass stopper (plug)
		The powder is added to the pycnometer, which is then weighed, giving the weight of the powder sample.
		The pycnometer is then filled with a liquid of known density, in which the powder is completely insoluble.
	www.startlearningnow.com /pycnometer.htm (224 words)

	Pycnometers – Web Listings
		Pycnometers are typically glass or metal containers with a precisely determined volume for...
		Pycnometers are typically glass or metal containers with a precisely determined...
		Pycnometers are capable of measuring densities of materials.
	www.business.com /directory/industrial_goods_and_services/machinery_and_tools/test_equipment/metal_testing/pycnometers/weblistings.asp (397 words)

	Gas comparison pycnometer (US5074146)
		A gas comparison pycnometer is disclosed which provides a method and apparatus for determining and checking the accuracy of the volume of a solid substance.
		The pycnometer is also outfitted with a unique cap assembly which fixes the volume in the pycnometer's sample chamber from run to run.
		The pycnometer also employs a series of purges with a suitable gas to carry unwanted moisture and vapors out of the system.
	www.delphion.com /details?pn=US05074146__ (520 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		What is the density of the liquid?10.5590.6590.7910.8780.923 2A pycnometer is a glass vessel that can be repeatedly filled with the same volume of a liquid.
		Water is then added to exactly fill the pycnometer and the total mass is determined to be 39.841 g.
		Water is then added to exactly fill the pycnometer and the total mass is determined to be 43.519 g.
	lrc-srvr.mps.ohio-state.edu /under/chemed/qbank/1/1-28.que (547 words)

	Molecularity: The Density Project
		By filling the inside volume of the pycnometer completely with a liquid, the mass of the liquid corresponding to that volume may be readily determined.
		Once you have determined the volume of the pycnometer, is it necessary that the inside of the pycnometer bulb be completely dry before you use it to determine the mass and volume of a metal sample?
		To fill the pycnometer with liquid, use a Pasteur pipet to fill the bulb to about halfway up the neck (there is usually a white mark).
	www.wpi.edu /Academics/Depts/Chemistry/Courses/General/density.html (741 words)

	Porous Materials, Inc - Products - Mercury Pycnometer
		The Mercury Pycnometer is easy-to-use, provides accurate results in less than 10 minutes, and accommodates a wide range of samples.
		The primary use of the Mercury Pycnometer is quality control as it offers a quick and relatively accurate bulk density measurement.
		The Mercury Pycnometer serves industries ranging from batteries to nonwovens to pharmaceuticals.
	www.pmiapp.com /products/mercury_pycnometer.html (251 words)

	IFM-GEOMAR: density and porosity
		Leave the pycnometer and the pure water for several hours in the same room with the analytical balance.
		Leave the pycnometer and the samples for several hours in the same room with the analytical balance.
		Leave the pycnometer the pure water and the samples for several hours in the same room with the analytical balance.
	www.ifm-geomar.de /index.php?id=mg_dichtebestimmung&L=1 (299 words)

	guichett - 31990R2676 -
		A Pyrex pycnometer (1), of approximately 100 ml capacity, with a removable ground-glass jointed thermometer calibrated in tenths of a degree from 10 to 30 °C (Figure 1).
		Calibration of the pycnometer involves a determination of the following quantities:- tare of the empty pycnometer,- volume of the pycnometer at 20 °C,- mass of the water-filled pycnometer at 20 °C.4.2.1.
		Carefully fill the pycnometer with distilled water at the ambient temperature and fit the thermometer; carefully wipe the pycnometer dry and place it in the thermally insulated container.
	europa.eu.int /smartapi/cgi/sga_doc?smartapi!celexapi!prod!CELEXnumdoc&lg=EN&numdoc=31990R2676&model=guichett (11451 words)

	PSR Discoveries supplement: meteorite density & porosity
		It is also quite useful to know the "grain density" of the sample, which is equivalent to the density of the rock if absolutely no pore spaces were present.
		Pycnometers (from 'pycno,' meaning dense, and 'meter' meaning measure) are containers with precisely known volumes used to measure the density of rocks or liquids.
		The pycnometer consisted of two chambers, connected by a tube with a valve in it.
	www.psrd.hawaii.edu /Aug99/densityMeasure.html (938 words)

	Porous Materials, Inc - Products - Gas Pycnometer
		The Gas Pycnometer performs a fully-automated, non-destructive test that allows the user control of the number of test iterations, and thus test length and accuracy.
		The Gas Pycnometer uses the ideal gas law to determine the volume of a sample, given a known volume of the sample chamber and gas reservoir and a change in pressure.
		Applications for the Gas Pycnometer span many industries ranging from automotive to nonwovens to pharmaceuticals.
	www.pmiapp.com /products/gas_pycnometer.html (273 words)

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