Temperature-Controlled Gas Displacement Pycnometers

The AccuPyc II Series are fast, fully automatic gas displacement pycnometers that provide high-speed, high-precision volume measurements and true density calculations on a wide variety of powers, solids, and slurries. Micromeritics has added a versatile temperature-control solution to this series with the introduction of the AccuPyc II TEC.

Gas pycnometry is a reliable technique for obtaining true, absolute, skeletal, and apparent volume and density. However, materials subjected to changing temperature may have a direct effect on their volume, thereby affecting accurate density determination. The AccuPyc II TEC can be used with temperature-sensitive or viscous samples where environmental temperature cannot be adequately controlled.

The instrument features a Peltier thermoelectric device to deliver temperature stability and accurate temperature control from 15 to 36ºC, adjustable in 0.1ºC increments. Available in stand-alone models with sample chamber sizes of 10 and 100 cu cm, the instrument also comes in an analysis module version for remote operation when utilizing an AccuPyc II control module.

Optional software can also enable the instrument to determine the density of semi-solid bituminous materials. With this TEC software solution, data can be closely correlated to those obtained with ASTM Test Method D70-09, but with much faster specific gravity, volume, and density results. This option includes disposable sample cups to limit contamination and minimize cleaning of the sample chamber between analyses.

Micromeritics Instrument Corp., Norcross, GA 770-662-3636 www.micromeritics.com

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