We Can Help Solve \bur Materials Analysis Problems More R&D and QC labs around the world characterize the physical properties of

materials using Micromeritics instruments than those of any other manufacturer.

Particle Size Distribution

SediGraphs 5000D: Provides precise, fast and flexible particle size analysis from 0.1 to 100yum diameter. The Micromeritics SediGraph automates classical Stokes' sedimentation and permits a wide analyses range without liquid-liquid or liquid-surface interfaces and without easily-clogged, fragile orifices. The SediGraph accounts for all the sample present, even material out­side the range of analysis. Data are automatically plotted as cumulative mass percent versus equivalent spherical diameter on an easily read graph. The analyzer operates unattended and yields results in minutes. The SediGraph can use both aqueous and organic liquids. Results are compatible with other sedimentation data.

Pore Size, Volume

Mercury Intrusion Porosimeters: Both manual and automatic models determine pore volume/pore size of porous, solid samples to 26mm dia X 28mm and to 15cc of powder. Measure intrusion volume to 1.8cc and pore size from 360 to 0.003yum dia. Safe, completely hydraulic pressure systems. The Pore Sizer 9300 is a low-cost manually operated porosimeter which can measure pore size down to 0.006/urn diameter. The AutoPore 9200 features completely automatic microcomputer controlled operation and data acquisition, reduction and printout.

Surface Area, Pore Structure & Chemisorption

AccuSorb 2100E: The most accurate, versatile surface area and pore structure analyzer available. Measures specific surface areas from 0.001 m2/g up. Chemi­sorption capability available. Uses any noncorrosive gas or vapor as adsorbate. No calibration required. Simultaneously outgas four samples with built-in vacuum system and subsequently analyze these samples in sequence. Auto-ranging, digital readout of system pressure from 0.0001 to 1000.0 mm Hg.

DigiSorb 2500: Automatically measures adsorption and/or desorption isotherms and calculates pore size and surface area data. EVERYTHING except sample weighing is automatic. Analyzes up to five samples without reloading. Automatically outgasses additional samples for subsequent analysis. Operates 24 hours a day, 7 days a week and up to 4 days unattended. Automatic shut-down and restart routines protect the samples and data during temporary power failure. Surface area, isotherm, pore volume and pore size results are computed and then printed and plotted by a data terminal. Optional automatic chemisorption of H2 and CO on Pt-group metals and O2 on silver.

Fast B.E.T. Surface Area

Surface Area Analyzers: For applications requiring fast, accurate analyses. Measure specific surface area from 0.05 to 1,500 m2/g. Low cost, rugged and easy to operate. No calibration required. typically outgas and analyze two to five samples per hour. Surface area is automatically displayed in m2 by a digital readout.

Electrophoretic Mobility & Zeta Potential

Zeta Potential Analyzer: Studies floc-culation and dispersion; particle-liquid systems behavior; zeta potential. Easy accurate determination of particle mobility in liquid-particle systems to 50 volume percent solids. Zeta potential, the effective surface charge on the particles, is determined from the mobility measurement and the liquid dielectric constant. Measures colloids to particles about 1 mm diameter.

Density Helium Pycnometers: Measure the ab­solute volume of powdered or solid materials. Easily handle reactive or hygroscopic materials. Allows porosity determination when sample has a regular shape or known bulk volume. Both manual and automatic pycnometers require a dry sample for best results. The AutoPycnometer is microcomputer controlled to automatically calculate and read out the density. The manual pyc­nometers take 40 or 90cc maximum sample volumes while the AutoPyc­nometer accepts up to 10cc sample volumes.

Materials Analysis Lab

Micromeritics offers a fully-equipped laboratory staffed with highly qualified particle technology personnel to aid customers in characterizing materials. Professional, confidential assistance is available on a contract basis.

Micromeritics Instrument Corporation, 5680 Goshen Springs Road, Norcross, Georgia 30093. U.S.A. (404) 448-8282.

EHi micromeritics Solving Your Materials Analysis Problems

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