PHARM-TROL Count Precision Standards, Nominal Diameter: 15 µm, Uniform Polystyrene, 3800 #/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, Unit: 6 x 25 mL
CS-PK