| 摘要 |
A fuel tester is provided, which may be used to test for the presence of a contaminant such as water in a sample of fuel. In one embodiment, the fuel tester is a tube with a receiving end configured to attach to a sample container. The sample container holds a sample of fuel obtained from a device such as an aircraft. The fuel tester also includes a light source, e.g. a light emitting diode that is positioned in the tube to emit light on the sample of fuel in the sample container. If water is present in the sample of fuel, the water will form a separate layer from the fuel. The water layer will appear as a lighter shade of color and the fuel layer will appear as a darker shade of color on visual inspection by a user. The non-uniformity in color of the sample will alert the user that water is present in the fuel sample.
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