Title:
pH MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2023071283
Kind Code:
A
Abstract:
To provide a pH measurement device which can stably perform pH measurement by one pH measurement device.SOLUTION: A pH measurement device 1 comprises: a pH meter 10; and a cylindrical vertical container 20 into which a rod-shaped electrode 11 is inserted from a top portion, and performs pH measurement while consecutively introducing an aqueous solution of the measurement target whose pressure is boosted by a pump 2 from an inlet nozzle 21 and simultaneously overflowing from an outlet nozzle 22. The outlet nozzle 22 has a position L1 of a lowermost part of the container side opening higher than a center part L2 in a vertical direction of the vertical container 20 and higher than a position L3 of an uppermost part of the container side opening of the inlet nozzle 21. A bottom part of the vertical container 20 is provided with a drain nozzle 23 and a discharge valve 24 connected thereto.SELECTED DRAWING: Figure 1
Inventors:
MURAYAMA KOJI
Application Number:
JP2021183949A
Publication Date:
May 23, 2023
Filing Date:
November 11, 2021
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
C02F1/00; G01N33/18
Attorney, Agent or Firm:
Norinori Tsujikawa
Mitsuru Kimura
Mitsuru Kimura
Previous Patent: Vacuum processing apparatus and vacuum processing method
Next Patent: permanent magnet motor
Next Patent: permanent magnet motor