4D Series (Dry)

With a mean size standard uncertainty of ≤2.5%, these beads can calibrate airborneopti cal particle counters (OPC) in compliance with ISO 21501-4.

This makes them ideal for OPC instrument manufacturers and service providers working to the ISO standard, as well as pharmaceutical, health care, and biotech companies manufacturing products with ISO 21501-4 certified OPCs in a ISO 14644 classified cleanroom.


• Certificate of Calibration and Traceability to NIST
• Improves the repeatability and reproducibility of OPCs

Applications

  • Calibrate airborne optical particle counters in pharmaceutical and electronic manufacturing labs and cleanrooms

Specifications:

  • Uniform Polymer
  • Microspheres
    Nominal Diameter: 3 µm – 10 µm
  • Polystyrene DVB 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
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