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WebOne of the first things we learn to do on an aircraft preflight is check the fuel. Using a fuel cup, we draw a sample from each fuel drain or sump, check the color (blue for 100 LL), and check for water and other contaminants. Usually, this does the job, but a few problems can go undetected by this simple fuel check. WebSeveral samples were taken at different locations around the lake, including water samples, lake bottom samples, and plant samples. When the chemist returned to the laboratory, the water samples were the first to be analyzed. The analysis began by removing a number of aliquots. An aliquot is (a) a measure of the contamination of the … huntingdon united church
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