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The MicrobMonitor2 test is recommended by IATA for monitoring aircraft fuel tanks. This recommendation has been adopted by all leading aircraft manufacturers (including Boeing and Airbus). This Technical Guidance document provides information on using the MicrobMonitor2 test kit to monitor for microbial contamination in aircraft fuel tanks;
1 Ιουν 2012 · The measurement procedure of the data series for specific wavelength enables calculation of signal shifts that allow the internal stability classification of diesel fuel samples in less than 30...
23 Νοε 2017 · The ASTM suggests that counts of 10 5 CFU/ml can be, in many cases, accepted in the water bottom but any microorganisms detected in the fuel should suggest the need for corrective measures . The ASTM also cautions that microbial counts should be routinely monitored and if problems with fuel chemistry, performance or physical appearance are also ...
27 Μαΐ 2015 · In the UK, drinking water is permitted to have 10^6 CFU bacteria/mL (as long as they are not potential pathogens). IATA set a very conservative control level because filter pulling at 50,000 ft can cause an aircraft to fall out of the sky.
CFU/ml = (Number of Colonies / Volume of Sample in ml) This formula calculates the concentration of viable microorganisms per milliliter of the liquid sample, based on the number of colonies that have grown on a culture medium.
You should also be able to determine the proper dilutions to use to obtain 30-300 colonies on a plate if the original number of CFU/mL in a sample is known. Watch Video 1 on how to perform a serial dilution using "pour plates" and the associated calculations:
13 Νοε 2012 · The widely used gold standard method is Colonies Forming Units (CFU) counting on plates . The CFU method has two noteworthy advantages, namely the capacity for counts of any number of bacteria using dilutions, if too many, or concentrations if too few.
