Airborne particle counter
Counts and sizes airborne particles, typically at ≥0.5 µm and ≥5.0 µm, by measuring light scattered as each particle passes through a laser beam. Used to classify clean rooms and to monitor non-viable particles in Grades A–D.
- Pharmaceutical
- Biotech
- Medical devices
- Semiconductors
- Hospitals
- Aerospace
Particle counter calibration procedures
Instrument qualification (DQ · IQ · OQ · PQ)
- 01
DQ — Design qualification
Defines flow rate, size channels, minimum detectable size, portability or fixed installation, data integrity and alarm needs.
- 02
IQ — Installation qualification
Records the unit, software, calibration certificate and, for fixed systems, sensor locations and tubing.
- 03
OQ — Operational qualification
Checks zero count, flow rate, sizing and counting efficiency against ISO 21501-4, alarms and data transfer.
- 04
PQ — Performance qualification
Shows reliable counts in the room, including tubing losses for remote sensors and comparison with a reference counter.
Keep every Particle counter in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.