Thermo Scientific™ 4D Series Dry Microsphere Size Standards

Calibrate airborne optical particle counters to comply with ISO 21501-4 with Thermo Scientific™ 4D Series Dry Microsphere Size Standards.

Manufacturer: Thermo Scientific™ 4D07

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Catalog No. 09-982-002

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    Type Size Standard Particles
    For Use With (Application) Airborne Optical Particle Counter Calibration
    Additive Trace flow agent
    Diameter (Metric) 7μm
    Refractive Index 1.59 at 589nm (25°C)
    Storage Requirements Unless otherwise stated, store at ambient room temperature. Store upright; keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer.
    Certifications/Compliance Certificate of Calibration and Traceability to NIST, MSDS
    Composition Polystyrene Divinylbenzene (PS-DVB)
    Concentration 100% solids
    Contents 1g

    Calibrate airborne optical particle counters (OPC) to comply with ISO 21501-4 regulations with the Thermo Scientific™ 4D Series Dry Microsphere Size Standards. Ideal for instrument manufacturers, as well as QA/QC managers in pharmaceutical, biotech and electronics manufacturing, these microsphere reference beads feature a calibration uncertainty—the range of values within which the actual mean diameter will lie—that is less than or equal to 2.5% of the mean diameter.

    The diameter is traceable to the National Institute of Standards and Technology (NIST), and the product’s Certificate of Calibration and Traceability provides the documentation needed for QC/regulatory programs and audits.

    • Mean size standard uncertainty of ≤2.5% enables calibration of air particle counters to ISO
    • Superior uniformity provides exact calibration point when setting the calibration curve
    • Diameter is traceable to NIST, a known government standard
    • Certificate of Traceability provides objective evidence for QC compliance
    • Available in 3µm, 5µm, 7µm and 10µm diameters
    • Conveniently packaged in dropper-tipped bottles for direct dispensing into sampling chamber

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