【Daily Question】Chemical Analysis Version, 2021.7.3
Thread Content
The following situations that occur during the measurement process are not considered operational errors: A. Weighing something before it has cooled to room temperature; B. Rinsing the conical flask with the solution to be analyzed before titration; C. The weights used for weighing not being calibrated; D. Failing to wash the pipette with the solution before using it to transfer the solution. C
C The other three cases were all due to operational errors. Weight calibration may not be related to the operator and is managed by metrology personnel.