4K Particle Counter Standards, Nominal Diameter: 15 µm, Particle Counter Size Standards, Polystyrene microspheres, 5 x 10E8 #/mL, NIST traceable, Color: White or Colorless, Application: Particle count instrument calibration, Particle Density: 1.05g/cm%B3, Refractive Index: 1.59 at 589nm (25©C), Shelf Life: Minimum of 12 months
4K-15