Minimize contamination by eliminating the need for serial dilutions and extensive sample handling with Thermo Scientific™ COUNT-CAL™ Count Precision Size Standards.
Manufacturer: Fischer Scientific
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Certificate of Calibration and Traceability to NIST
Polystyrene microspheres in water
White or Colorless
Polystyrene
Certificate of Calibration and Traceability to NIST, Particle Counting Protocol
1.59 at 589nm (25°C)
Product stable for a minimum of six months
3000 particles/mL ± 10%
Products provide a precise method for calibrating or checking the performance of laser particle counters
Liquid Particle Counter Validation, USP Verification
Count Control Particles
6 x 25 mL
<3%