N.70 – Test of spontneous generation

The history For many centuries many people believed in the concept of spontaneous generation, the creation of life from organic matter. Spontaneous generation is the hypothesis that some vital force contained in or given to organic matter can create living organisms from inanimate objects. Spontaneous generation was a widely held belief throughout the middle ages and into […]

N.65 – Microbial air monitoring in Isolators

Monitoring of atmosphere inside isolators is very critical in maintaining high quality standards. In fact there are risks in using portable environmental samplers because they must be introduced each time you sample. “TRIO.BAS Isolator” from ORUM International in Milan  is a dedicated instrument for this application. The sampling aspirating chamber of “TRIO.BAS Isolator” is compact, […]

N.64 – Full traceability

GAP (Good Air-Monitoring Practice) in Clean Room: Full Traceability The Good Manufacturing Practice and Pharmacopeial  request that all the data collected during the microbial air monitoring are registered with full traceability. The TRIO.BAS air samplers include the Barcode 1D or 2D or the Radio Frequency Identification System (RFID) to collect air volumes, date, hours, operator […]


The “GAP” (Good Air-Monitoring Practice) requests that all the material used for the microbiological monitoring of the environment is sterile and the inspector authorities ask to document the sterilization compliance. The “Shift-Head” sterile disposable aspirating head for microbiological air samplers of the TRIO.BAS air sampler family has been produced for this purpose. Each “Shift-Head” from […]

N.62 – Position of samplers in Cleanroom

The microbiological active air sampler should, in some particular situations, vertically positioned. This situation could be specifically problematic in Clean Room. If the air sampler is on top of a trolley and is transferred to the more critical points, it is necessary to fix the air sampler to obtain a complete stability. It is for […]

N.60 – Microrganism stress

Effect of Impact stress on microbial recovery on an agar surface of an active air sampler Microbial stress due to impaction of microorganisms onto an agar collection surface is difficult to experimentally demonstrate. Recovery and injury due to collection depends not only on the magnitude of the impaction velocity, but also on the degree to […]

N.59 – Hole impact distribution

Even distribution of air flow on the agar of Petri dish The purpose of the test was to verify the regular distribution of the air flow on the surface of agar of a 90 mm Petri dish. The evaluation is performed counting the number of the impact holes produced on the gar surface, after aspiration. […]

N.57 – SOP Microbial Compressed Air / Gas Sampling according ISO 8573-7

OBJECT The purpose of this document is to describe the procedure for compressed air / gas sampling, and reporting of the viable airborne particulates as part of environmental program, using TRIO.BAS GAS Microbial Air Sampler. PURPOSE This procedure applies for sampling and evaluation of compressed air quality for viable particulates using a Microbiological Air Sampler […]