1 ABOUT THE ACCUPYC II
Gas pycnometry is recognized as one of the most reliable techniques for obtaining true, absolute,
skeletal, and apparent volume and density. This technique is non-destructive as it uses the gas
displacement method to measure volume. Inert gases, such as helium or nitrogen, are used as the
displacement medium. Density calculations using the gas displacement method are much more
accurate and reproducible than the traditional Archimedes water displacement method.
The AccuPyc II Pycnometers are fast, fully automatic pycnometers that provide high-speed, high-
precision volume measurements and true density calculations on a wide variety of powders, solids,
and slurries. The instrument completes most sample analyses in less than three minutes without
sacrificing accuracy. After analyses are started with a few keystrokes, data are collected,
calculations are performed, and results displayed. A minimal amount of operator attention is
required. The pycnometer can be controlled by either:
n Windows 10 interface. The operational status of the pycnometer can be continually monitored in
the application. If the Windows interface is used, the keypad is disabled.
n The keypad if not running the Windows interface. A separate keyboard and printer can be
attached to the pycnometer using USBports.
1 About the AccuPyc II
AccuPyc II 1345 Operator Manual
134-42851-01 (Rev A) — Jan 2021
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