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 Pore Size, Pore Volume Measurements
Micropores (i.e. those of molecular size) are analyzed bygas adsorption at very low pressures on state-of-the-art high vacuum systems. Resulting data are appropriately processed by the largest commercially available range of advanced computation methods. Large macropores (i.e. over 0.5 microns, and up to ~900 um diameter) are analyzed by the forced intrusion of liquid mercury. And we take care of mercury disposal concerns. Pores of intermediate size (mesopores) may be characterized by either gas sorption or mercury porosimetry. Through-pores of textiles, papers and other sheet like materials are measured by capillary flow porometry (liquid expulsion porometry).
We will gladly discuss your application and make suitable suggestions as to which method is more appropriate.
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Analysis Types
06000-DR
 DR Micropore Area with Nitrogen.
Dubinin-Radushkevic micropore surface area and micropore volume by nitrogen adsorption at 77K (minimum 3 data points). Vacuum/volumetric method. Report includes both graphical and tabular DR, t-plot & multi-point BET results. Customer provides outgassing (preparation) temperature. 
06000-3C
Extended DR Micropore Analysis with Carbon Dioxide.
Extended Dubinin-Radushkevic micropore surface area and micropore volume by CO 2 adsorption at 273.15K. Vacuum / volumetric method. Report includes both graphical and tabular DR & DFT micropore size distribution results. Suitable for carbon samples. Customerprovides outgassing (preparation) temperature.
06001-P
Total Pore Volume with Nitrogen.
Total pore volume and average pore size by nitrogen adsorption at 77K. Vacuum/volumetric method. Includes multi-point BET area. Customer provides outgassing (preparation) temperature.
06001-20-AD
Standard Mesopore Analysis.
Standard Mesopore Analysis by nitrogen adsorption at 77K. Vacuum/volumetric method. 20 adsorption points plus 19 desorption points. Includes BET multi-point value, single-point at P/Po = 0.3, t-plot calculation and total pore volume. Report includes both tabular and graphical BJH pore size distribution, BET and t-plot results. Customer provides outgassing (preparation) temperature.
06001-40-AD
High Resolution Mesopore Analysis. High resolution mesopore analysis by nitrogen adsorption at 77K. Vacuum/volumetric method. 40 adsorption points plus 39 desorption points. Includes BET multi-point value, single-point at P/Po = 0.3, t-plot calculation and total pore volume. Report includes both tabular and graphical BJH pore size distribution, BET and t-plot results. Customer provides outgassing (preparation) temperature.
06001-MS
Standard Micropore & Mesopore Analysis.
Standard micropore and mesopore analysis by nitrogen adsorption at 77K. vacuum/volumetric method. 64 adsoprtion points plus 19 desorption points. Includes multi-point BET area, total pore volume, and average pore size. Pores size distribution reports can also include adsorption and desorption isotherms, cumulative and differential pore volume and/or area distributions vs. pore diameter. Optional data reduction calculations (available upon request) include BJH, DH, DA, HK, SF, fractal dimension and DFT methods. Customer provides outgassing (preparation) temperature.
06001-MH
High Resolution Micropore & Mesopore Analysis.
High resolution micropore and mesopore analysis with nitrogen. Includes multipoint BET area, total pore volume, and average pore size. Pore size distribution reports can also include adsorption and desorption isotherms, cumulative and differential pore volume and/or area distributions vs. pore diameter. Optional data reduction calculations (available upon request) include BJH, DH, DA, HK, SF, fractal dimension and DFT methods. Customer provides outgassing (preparation) temperature.
06005
Pore size by Mercury Intrusion and Extrusion.
Pore volume and size distribution by mercury intrusion and extrusion (to 33,000/60,000 psia or user requested pressure). Report includes total pore volume, total surface area, mean, median and modal pore sizes, cumulative and differential pore volume and/or area distributions. Both graphical and tabular reports will be provided. Optional data reduction calculations (upon request and where appropriate) include compressibility, fractal dimension, throat/pore ratios, permeability, tortuosity, particle size distributions.
06005-A
Mercury Contact Angle.
Contact angle of mercury on sample using a dynamic mercury contact anglometer. Result is reported as average of three measurements.
06005-PD
Pore Size Distribution and Density by Mercury Intrusion.
Determine pore size by mercury intrusion and extrusion (to 33000/60000 psia or user requested pressure). Report includes total pore volume, surface area, and pore size distribution. Data reduction calculations can include cumulative and differential pore volume and/or area distributions vs. pore diameter or pressure. Both graphical and tabular reports will be provided. Optional data reduction calculations (upon request) include compressibility, fractal dimension, throat/pore ratios, permeability, tortuosity, Mayer-Stowe and Smith-Stermer particle size distributions. Also, includes determining the envelope density by mercury fill.
06005-3G
Pore Volume and Size Distribution by Capillary Flow Porometry.
The technique is suitable for all types of filtration media, woven and non-woven textiles, microporous membranes, sintered metals, and battery components, porous plastic sheets, ceramics and porous rock. The pressure capability of up to 500 psi allows for pore sizes from 500µm down to as small as 18nm. Conforms to ASTM standard methods D6767, E128, F316, and similar. Both graphical and tabular reports will include largest pore diameter(or the bubble point), the mean flow pore diameter, pore distribution and gas permeability.
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