Uniform Polystyrene DVB Microspheres, Nominal Diameter: 15 µm, NIST traceable, dry, Color: White, Application: Particle size instrument calibration, Particle Density: 1.05g/cm³, Refractive Index: 1.59 at 589nm (25©C), Shelf Life: Minimum of 24 months, Unit: 1 gram
DC-15