N. 68 - The ideal m/s speed of the impact air on agar surface of active air sampler

The ideal m/s speed of the impact air on agar surface of active air sampler. The indications of the ISO 14698 about the ideal m/s speed of the air that impacts on the agar surface of an active microbial air sampler are quite general. Flow rate: sufficiently high to ensure the detection of low levels of contamination but weak enough to not dehydrate excessively agar medium; Flow velocity and impact: sufficiently high to be sampled microorganisms of size less than 1 micron and sufficiently weak to avoid damage during the impact.