Particle Count Controls

Particle Count Controls are suspensions of (NIST traceable) particles with closely defined counts per ml. They can be used for the monitoring of liquid particle counters in contamination control applications, for instance in semiconductor cleanrooms.

We offer particle count controls manufactured by Thermo Scientific and Applied Microspheres that are especially developed for checking liquid particle counters in pharmaceutical QC laboratories that need to comply with US, European, Japanese or Korean Pharmacopeia regulations