Quality Assurance

Non-viable particle counter

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Non-viable particle counter:

A non-viable particle counter is a device used to measure and monitor the concentration of airborne particles that are not capable of reproducing or growing, typically referred to as non-viable particles. Non-viable particle counters are commonly used in various industries and settings where the control and monitoring of particulate contamination are critical.

Here are some key features and uses of non-viable particle counters:

  1. Particle Detection: Non-viable particle counters utilize optical sensors, such as laser-based light scattering or light obscuration techniques, to detect and count particles in the air. These sensors can detect particles of various sizes, typically ranging from sub-micron to several microns in diameter.
  2. Particle Size Distribution: Non-viable particle counters provide information about the size distribution of particles in the air. They can measure and report the concentration of particles within specific size ranges, allowing users to assess the cleanliness level of the environment or evaluate the efficiency of filtration systems.
  3. Particle Counting Standards: Non-viable particle counters are designed to comply with industry standards and guidelines, such as ISO 14644 for clean room environments or USP <797> for pharmaceutical compounding facilities. These standards define acceptable limits for particle concentrations based on particle size and the classification of the controlled environment.
  4. Real-Time Monitoring: Non-viable particle counters offer real-time monitoring capabilities, providing immediate feedback on the concentration and size distribution of airborne particles. This allows for prompt identification of potential sources of contamination or deviations from desired cleanliness levels.
  5. Data Logging and Reporting: Many non-viable particle counters are equipped with data logging capabilities, allowing users to store measurement data over time. This enables the generation of reports, trend analysis, and documentation for compliance purposes or quality assurance assessments.
  6. Applications: Non-viable particle counters are used in a wide range of industries and applications, including pharmaceutical manufacturing, clean rooms, hospitals, research laboratories, semiconductor manufacturing, aerospace, and HVAC (Heating, Ventilation, and Air Conditioning) systems. They play a crucial role in ensuring the quality, safety, and cleanliness of controlled environments and processes.

When using a non-viable particle counter, it is important to calibrate the instrument regularly according to the manufacturer’s guidelines to ensure accurate and reliable measurements. Proper maintenance, including routine cleaning and verification, is also necessary to maintain the performance of the particle counter.