When is microbiological sampling required?

This service can be carried out as part of a monitoring, verification or assessment service. Analysis is carried out by an outsourced independent UKAS accredited laboratory using qualified microbiologists. Methods of analysis are based on standard “blue book” methods.

Over 90% of the methods carried out are accredited. Procedures and methods are in line with ISO 17025 guidelines for all samples received. We welcome customers to audit our procedures as part of their management of suppliers and subcontractors, and a visit to the laboratory in Surrey can always be arranged.

Microbiological sampling can be undertaken to assess both surface and air contamination In some instances, such as healthcare, air quality must be verified against specific guidance. Air supplied to operating theatres should be sampled microbiologically before a theatre comes into use. For specific guidance on control levels for your environment you should consult with your appointed IPC team or lead.

What is involved?

Airborne bacteria and fungi are measured by taking air samples with a Micro-Bio sampler using 90mm agar plates. A pair is taken per position with each plate being selective for bacteria or fungi. Agar settle plates (90mm) may also be taken at the same or adjacent table height/wound site locations. Settle plates are open for 60-120 minutes in an unoccupied indoor environment. Surface measurement involves a dip slide being depressed against the surface being assessed. Action levels used have been calculated with regard to the surface area of the plate or slide.

How often does it need to be done?

Microbiological sampling is normally undertaken as part of an annual assessment or verification. In some cases when significant system works have been undertaken, sampling is carried out as part of the procedure for bringing the system back into service.

How can AirisQ help with microbiological sampling?

Our experienced team of trained and qualified surveyors provide an on-site service and all the equipment necessary to physically take the samples, followed by submission for analysis to an independent UKAS accredited laboratory using qualified microbiologists. AirisQ provides immediate transport of samples to the laboratory for incubation. Prior to issuing final certification of results, early and interim results can be provided upon request.