Colony Picking - Monitoring and Testing Information

Articles & Whitepapers

Table of Statistical Corrections According to Feller for the BioCapt® Microbial Impactor in Microbial Air Sampling

Abstract This application note uses the principle that, as the number of viable particles — colony forming units (CFUs) — impact on an agar plate increases, the probability that viable particles will enter unoccupied space decreases. The values within Tables 1 and 2 are shown at flow rates of 25–50 LPM and 100 LPM. BioCapt microbial impactors are used on all Particle Measuring ...

Statistical Corrections Microbial Monitoring in Grade C/D Cleanrooms

Microbiologists rely on the Feller table to correct for undercounting of biological activity. The “Table of statistical corrections according to Feller” is based on the principle that as ...

Positive feedback from the JEMS 39th Annual Meeting

Perceptive Instruments completed a successful trip to Japan last month, exhibiting at the 39th Annual Meeting of the Japanese Environmental Mutagen Society (JEMS). During the meeting we met many of our Japanese Comet ...

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Total Viable Count Devices

MicroSnap Total delivers TVC test results in 7 hours, giving you the advantage of knowing microbial levels on the same day samples are collected. The test uses a novel bioluminogenic test reaction that generates light when enzymes that are characteristic of viable bacteria react with substrates to produce light. The light generating signal is then quantified with the EnSURE™ luminometer. ...