These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy.
Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.

  • Item no: 4215A
  • Particle Size: 15µm
  • Concentration: 0.3 % Solids
  • Composition: Polystyrene
  • Surface Modification:
  • Volume / Quantity: 15 mL
  • Color: WHITE
  • NIST Traceable: YES
  • (Key) application: Metrology and instrument calibration