2021 Volume 16 Issue 2 Pages 143-157
In order to investigate the preparation of calibration curve for the measurement of calcium carbonate content using a gasometric method, at first, we summarized the outline of various calcium carbonate content tests. Then we investigated the factor of fluence on the results of calcium carbonate content test. As the results, we could prepare the calibration curve under the following the test conditions instead of the test methods that was left to the judge of the tester.: (1) “small dolly” was used for shaking, (2) hydrochloric acid concentration was “3mol/L”, (3) added hydrochloric acid volume was “30mL”, (4) shake direction was “perpendicular to the diaphragm surface of the pressure gauge”, (5) shake speed was “3 times per second”, (6) shake time was “50 seconds”, (7) pressure measurment time was “60 seconds” after shaking starts.
