Count Controls
This series of NIST traceable size standards provides an accurate and convenient method for calibrating or checking the performance of laser particle counters used in cleanrooms and other contamination monitoring applications.
Particle size standards for use in particle counting validation for particle counting instruments
Easy-to-use liquid particle count controls
Products are for checking of the calibration of liquid particle counters.
Particle count control for USP <788> and <789> verification
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