Thermo Scientific™ 3K/4K Series Particle Counter Standards Available on GSA/VA Contract for Federal Government customers only.

Ensure accurate and convenient calibration of laser particle counters with Thermo Scientific™ 3K/4K Series Particle Counter Standards.

Manufacturer: Thermo Scientific™ 4K20

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Catalog No. 09-980-208

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    Specifications

    Additive Contains trace amount of surfactant
    Composition Polystyrene
    Concentration 3 x 105/mL
    Contents Polymer particles in water
    Description NIST traceable particles that provide calibration of laser particle counters
    Diameter (Metric) 20μm
    Diameter (Metric) Particle 19.99 ± 0.25µm
    Includes Certificate of Calibration and Traceability to NIST
    Material Polystyrene
    Particle Density 1.05g/cm3
    Quantity 15mL
    Refractive Index 1.59 at 589nm (25°C)
    Size Distribution <3%
    Stability Product stable for a minimum of 12 months
    Storage Requirements Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
    Type Count Control Particles
    For Use With (Application) Laser Particle Counter Calibration

    Ensure accurate and convenient calibration of laser particle counters with Thermo Scientific™ 3K/4K Series Particle Counter Standards. Compared with our 3000 and 4000 Series products, this product line is precisely diluted for immediate use in laser particle counters with minimal time-consuming concentration adjustments.

    Features:

    • Suspensions of monodisperse polystyrene spheres for use in airborne or liquid particle dispersion systems
    • Particle diameters traceable to the Standard Meter through the National Institute of Standards and Technology (NIST)
    • Accurately calibrates or checks performance of laser particle counters used in cleanrooms and other contamination monitoring applications
    • Particles prepared as low residue aqueous suspensions for minimal background interference

  • Description & Specifications

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