Gas comparison pycnometer

Details Gas comparison pycnometer Gas comparison pycnometer

1989-11-17

1991-12-24

Williams, Hezron E.

Measuring and testing

Volumetric content measuring

73 37, G01N 926

Patent

active

050741462

ABSTRACT:
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. This pycnometer solves many problems in the prior art by quickly and accurately determining the volume of a solid substance.

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"Model 6102--Gas Comparison Pycnometer", Systems, Science and Software, May 1978--1980--at Pittsburgh Conference.
"A Microprocessor Controlled Gas Pycnometer" by Ronnie Camp, Charles Capehart and Clyde Orr, pp. 1-9.
"Micromeritics--AutoPycnometer 1320", Micromeritics Corporation.
H. M. Rootare et al., "Effect of Adsorbed Water on Sample Surface in Density Measurement with an Automatic Helium Pycnometer", Abstract, Pittsburgh Conference, 1981, No. 908.
Ronnie W. Camp et al., "A Microprocessor Controlled Gas Pycnometer", Abstract, Pittsburgh Conference, 1980, No. 288.
"Multi Volume Pycnometer 1305", Micromeritics Corporation.
"Instruction Manual Multivolume Pycnometer 1305", Jan. 23, 1987.
Shibata Brochure Analysis prepared for Micromeritics Instrument Corporation, "Surface Area Apparatuses, Type ASA-2000", pp. 1-7.

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