Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards

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

  Check Availability
Add to cart



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


Contains trace amount of surfactant
2000 particles/mL ± 10%
Used for validating the performance of liquid particle counters
19.99 ± 0.25µm
s = 0.15µm, 1.0% CV
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.
Liquid Particle Counter Calibration
Polystyrene microspheres in water
19.99μm ± 0.25μm
Certificate of Calibration and Traceability to NIST
1.59 at 589nm (25°C)
Product stable for a minimum of three months
Count Control Particles
Provide Content Correction

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