In what condition should air samples be sent to a laboratory?

Air samples should always be securely sealed and labeled before being sent to a laboratory for analysis. This condition ensures the integrity of the samples, preventing contamination and loss of the airborne particulate matter being measured, which is essential for obtaining accurate results regarding asbestos levels. Proper labeling also facilitates effective tracking and documentation, allowing laboratory personnel to understand the context of the samples, including the time and location of collection, which can be critical for interpreting the results appropriately.

Sending samples in non-specific containers, or those that are not securely sealed, increases the risk of altering the sample's condition or contamination, which can lead to inaccurate readings. Similarly, samples collected without sufficient historical data may lack the necessary background for meaningful analysis. Therefore, securely sealing and labeling the samples is paramount for ensuring reliable laboratory analysis and conclusions.