InstruQuest Inc. Scientific Instruments R&D
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Applications:
- True density measurements of solids (e.g. fine powders, foams, etc).
- Determination of density at precise relative humidity and temperature values (with RH probe)
- Filter integrity tester - bubble point and pressure decay tests (with ancillary hardware)
- RH sensor calibrator (with saturated salt solutions)
- Determination of RH atmosphere over different mixtures, solutions
- Outgassing of samples using vacuum to a specified RH value or other conditions
- Remote control from PC for working with dangerous samples (under the hood)
Design highlights:
- Manual and Automatic operation (Windows based software)
- Progressive gas pressurization and depressurization (nano-powders, no-elutriation)
- Dual reference chamber for the largest range of volume measurements
- Relative humidity and temperature measurements inside the sample chamber
- 24-bit data acquisition, high accuracy and excellent repeatability
- Pressure regulator and gauge (at the back panel of the instrument)
- Superior for foam density measurements (ASTM D6226-05)
- Variety of ancillary hardware for other applications, e.g. for filter integrity testing (largest pore sizes),
RH probe calibrations,
- Small size and mass, portable
- Designed for easy customization to fulfill application specific requirements
- Sophisticated and interactive software for experiment design and control
(our software is compatible with 64-bit Windows® operating system)
- All experimental data are recorded and transferable (macro) to Excel.  
HumiPyc / model 1,  Gas Pycnometer -  A powerful research idea:
- volumetric density measurements using pressure range from vacuum to 50 psi (345 kPa) and temperature range
from sub ambient to 50C, with parallel relative humidity (RH) data (0-100%)
- RH analysis in the pressure and temperature range, sorption and kinetic data from multiple headspace extraction
- Designed especially for true density measurements of fine powders and foams
- Bubble Point and Pressure Decay Methods for characterization of filters / membranes  
HumiPyc / model 2, Gas Pycnometer -  Density & Moisture Analyzer
The most versatile gas pycnometer available; with many options, software compatible with 64-bit Windows®
operating system, and for every budget.
Design highlights:
- Integration of automatic and manually operated pycnometer into one system
- Integrated  temperature control
- Continuous flow of gas in and out of sample chamber
- Relative Humidity (RH) and temperature measurements inside the sample chamber
- Vacuum port (standard in all models)
- 24-bit data acquisition, high accuracy pressure transducer
- Independent precision pressure regulation
-
Auto Mode (Windows® operating system) and Manual mode of operation
- Sophisticated and interactive software for experiment design and control
- Macro transferring data to Excel for additional analysis
- All experimental data recorded and available to the user
Advantages:
- Many capabilities in one instrument, high accuracy, and precision
- Volume and density data obtained at precisely defined temperature, pressure, and RH conditions
- Dual reference chamber for the largest range of volume measurements
- No sample elutriation during treatment and analysis, designed for fine powders
- Any sample holder up to about 2" (52mm) O.D., and 2" (52mm) Height
- Elimination of shortcomings of other pycnometers that use only On/Off valves
- Ability of incorporating of additional sensors
- Multiple headspace extraction capabilities
- Determination of RH atmosphere caused by solids, liquids, or slurries
- Availability of equilibration profiles vs. time data for kinetic and sorption studies
- Foam density measurements (open cell content, other characterizations)
- Very low cost
- Small size, 22cm x 29cm, 43cm (8.7" x 11.4" x 19")
1.Determination of foam density (open-cell,
closed-cell percentage) using the HumiPyc ™
- density analyzer.
Profile of density vs. pressurization pressure
instead of a single number
2.Combining the Enhanced Bubble Point and
Pressure Decay methods in characterization of
micro-filtration products using the HumiPyc.
To find out more about HumiPyc capabilities
as filter integrity tester, please read this
application note
3.Determination of actual performance of gas
pycnometer vs. quoted specifications
... review
Gas Pycnometer Accessories
Gas Pycnometer Calibration Kit
Calibration Kit
(also available separately)
Volume Reducing Adapters
Micro Ball Calibration Set
Micro Ball Calibration Set
How accurate is your pycnometer?
(free of charge)
Volume Reducing Adapters
To achieve highest accuracy of volume
measurements of large and very small
amount of samples
2004 -2012 Copyright © InstruQuest, Inc. All rights reserved.
Design Advantages of HumiPyc Gas Pycnometers  model 1  and  model 2
Especially designed for measurements of cement fineness where Blaine
apparatus according to ASTM C 204 – 07 method  is typically used.

Software allows calculation of surface area of powders (packed-beds) using
Carman-Kozeny equation.

True density, porosity, and gas permeability specific surface area of
powders can be measured by a single instrument.
Constant volume gas (air) permeameter option to
HumiPyc, Model 1 and Model 2 gas (helium) pycnometer.
Introducing
HumiPyc model 2
HPYCmodel1