Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards Available on GSA/VA Contract for Federal Government customers only.

Meet the unique and demanding requirements of the contamination control laboratory in modern industries.

Manufacturer: Thermo Scientific™ 6020

 View more versions of this product

Catalog No. 09-980-230

Add to Cart
  Our pricing system is currently unavailable. You are viewing list price.
You can save item(s) to your list now to purchase when our pricing system is available.


    Type Count Control Particles
    For Use With (Application) Liquid Particle Counter Calibration
    Diameter (Metric) 19.99μm ± 0.25μm
    Description Used for validating the performance of liquid particle counters
    Diameter (Metric) Particle 19.99 ± 0.25µm
    Includes Certificate of Calibration and Traceability to NIST
    Material Polystyrene,Polystyrene
    Particle Density 1.05g/cm3
    Quantity 100mL
    Refractive Index 1.59 at 589nm (25°C)
    Size Distribution s = 0.15µm, 1.0% CV
    Stability Product stable for a minimum of three months
    Storage Requirements Unless otherwise stated, refrigerate (2-8°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.
    Composition Polystyrene
    Contents Polystyrene microspheres in water
    Additive Contains trace amount of surfactant
    Concentration 2000 particles/mL ± 10%
    Item Description 19.99um +/- 0.25um, sigma = 0.28um, 1.4% CV
    Density 1.05g/cm3

    Meet the unique and demanding requirements of the contamination control laboratory in modern industries with Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards, easy-to-use liquid particle count controls at 2000 particles per mL. Designed for regular use in liquid particle counters to verify instrument calibration before each use, standards assure reproducibility of the particle counter by permitting a continuous record of its performance using a NIST™-traceable microsphere suspension with a precise concentration.


    • Ready-to-use (no dilution required) particle size standard for validating optical particle counters
    • Magnetic stir bar included in each bottle for clean, convenient and direct sampling
    • Aqueous suspension medium contains a combination of dispersing agents to keep particles from clumping or sticking to flow surfaces in the particle counter
    • Particle diameters traceable to the Standard Meter through the National Institute of Standards and Technology

    Recommended for:

    Checking the calibration of liquid particle counters.

  • Description & Specifications

Related Products

Product Content Feedback

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit