What is the typical flow rate range for air sampling?

The typical flow rate range for air sampling falls within 0.5 to 16 liters per minute. This range is effective for capturing a representative sample of airborne contaminants in various work environments while ensuring that the sampling process does not bias the results due to excessive flow rates.

Sampling at flow rates lower than 0.5 liters per minute may not provide adequate volume for analysis, which could lead to underreporting of contaminant concentrations. Conversely, sampling at flow rates approaching or exceeding 16 liters per minute might disturb the natural concentration of airborne particles or vapors, leading to inaccurate readings. Therefore, the correct answer reflects a balance of precision and practicality, highlighting the importance of adhering to established protocols for effective occupational hygiene monitoring.