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Thermo 3K-4K Series

The 3K/4K Series of particles are suspensions of monodisperse polystyrene spheres designed for use in the calibration of airborne or liquid particle counting systems.
Their diameters are traceable to the Standard Meter through the National Institute of Standards and Technology (NIST).
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3K-4K Series Particle Counter Size Standards

◇ 3K/4K Series Particle Counter Size Standards provides an accurate and convenient
    method for calibrating or checking the performance of laser particle counters used in
    cleanrooms and other contamination monitoring applications
◇ Particle Composition: Polystyrene
◇ Particle Density: 1.05 g/cm3
◇ Index of Refraction: 1.59 @ 589 nm (25°C)
◇ Packaged in: 15 mL
◇ Size : 0.1, 0.15, 0.2, 0.22, 0.27, 0.3, 0.35, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.6, 2.0, 3.0, 4.0,
              5.0, 6.0, 7.0, 10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 100um
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