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Density determination information correct or error is minimal. To ensure that the temple or read the value from the test tube and recording the correct or error least
.May be conducted twice to three times to ensure that the final value is the most accurate. Depending on the resolution of the scale, the readings from the test tube, the accuracy of the scales และไม้บรรทัด with
.Which will not cause great error was born to hold trials no trust.
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