Sampling for microorganisms requires aseptic technique regardless of the method used. A person’s mere presence in a room can add 37 million bacteria to the air every hour. Gloves, masks, lab coats, and hairnets are essential wear when sampling for microbial contamination to ensure an accurate representation of the controlled space.
Samples can be collected via surface swab, Trio.bas Mono, laser particle counter, settle plate, or contact plate.
Once sampling is complete, the samples (swabs or contact plates) must be carefully wrapped in parafilm, labeled, and returned in a cooler to Trace Analytics. Trace provides frozen ice packs to ship with the samples to ensure that growth does not occur in transit. If utilizing a laser particle counter, note that nonviable and viable particles are not differentiated and are displayed in real-time, final reports are in the required ISO spec or customer format.
Once the samples arrive at Trace, they will be incubated at customer specification or Trace Analytics standard method for ambient air testing. Custom incubations are available if requested. Our team of microbiologists will count the colony-forming units on each plate. Gram staining is available for the Pro Package. If further identification is requested, our team can perform chromogenic identification as well.
Reports will be delivered 7 days after samples are received. To schedule sampling, contact our team of experts here.