Polystyrene Microsphere Beads CRM4316A

Specifications
Additive	Contains trace amount of surfactant to inhibit agglomeration and promote particle stability.
Certifications/Compliance	Each package of standards contains a Certificate of Calibration and Traceability to NIST, which includes a description of the calibration method and its uncertainty, and a table of chemical and physical properties.
Concentration	SEE SPEC
Contents	Polymer particles in de-ionized water
Description	3000 Series or 4000 Series of NIST Traceable particles and micro-spheres support size accuracy calibration of laser particle counters, CNC particle Counters, Wafer Inspection systems; and for use in Aerosol research.
Color	White or Colorless
For Use With (Application)	Narrow Size Standard Deviation Applications
Material	Polystyrene
Product Type	Particle Size Standards
Includes	Certificate of Calibration and Traceability to NIST
Particle Density	1.05g/cm3
Volume	15 mL in De-Ionized (DI) Water
Refractive Index 3000/4000 Series	1.59 at 589nm (25 C)
Refractive Index Dry Particles	1.49 at 589nm (25 C)
Size Distribution	SEE SPEC
Stability	Product stable for a minimum of 24 months.
Diameter (Metric)	SEE SPEC
Unit Size	Each

Polystyrene Microspheres are spherical in design, highly accurate is size diameter, and are provided with a narrow size distribution, making these particle size standards extremely accurate for size response calibration of your laser particle counters, water particle counters and other metrology instruments used in your aerosol science studies. These particle size standards are packaged with 1% or less concentration of micro-spheres in 15 ml De-ionized water. Each bottle ships with a NIST-Traceable, Particle Size Certificate showing date of manufacture and size specifications with NIST Traceability to SRM Standards. Store in a cool dry, dark environment to minimize contamination issues, and these particle size standards can last more than 2 years when handle and stored properly.