Laser diffraction

Dynamic Light Scattering

Microscopy and digital image analysis

Scanning electron microscopy / EDX

Gasadsorption (BET)

Differential Scanning Calorimetry

Air permeability

Helium pycnometry

Mercury porosimetry

Apparent volume

Flowability

Rotary sample divider

Instruments and measuring principle
Primary particles are vacuum dispersed in air or liquid on object glass prior to image analysis.

Instruments:

  • Light microscope.
       Magnification X 40 - 1000.
  • Light macroscope.
       Magnification X 3.5 - 100.

    Digital image analysis software:
  • Image Pro from Media
       Cybernetics.

    Parameters and applications
  • Particle size distribution by
       number or calculated volume
       (1 – 2000 µm).
  • Particle shape e.g. aspect
       ratio (ratio between breadth
       and length).
  • Overview of particles
       dispersed in liquid or air.
  • Observation of foreign
       particles in the sample
       (pollution). Suspicion of
       pollution should be followed by    elemental analysis by EDX/SEM    to confirm foreign particles.
  • Measurement of object sizes
       e.g. mesh size of sieves.

    Prerequisites
    Particles 1 – 300 µm:
    Min. 10 – 100 mg of substance dependent on particle size.
    Particles such as granulates and pellets over 300 µm:
    Min. 1-2 g of substance.

    Click here to download a product sheet in PDF (816 KB)

    Click here to download a product sheet in German (854 KB)


    • Vacuum dispersing unit


    Light microscope


    Light macroscope