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The pH meter is calibrated with solutions of known pH, typically before each use, to ensure accuracy of measurement. [11] To measure the pH of a solution, the electrodes are used as probes, which are dipped into the test solutions and held there sufficiently long for the hydrogen ions in the test solution to equilibrate with the ions on the ...
pH meter: pH (chemical acidity/basicity of a solution) photometer: illuminance or irradiance planometer: area polarimeter: rotation of polarized light potentiometer: voltage (term is also used to refer to a variable resistor) profilometer: surface roughness protractor: angle psychrometer: humidity pycnometer: fluid density pyranometer: solar ...
The pH of aqueous solutions can be measured with a glass electrode and a pH meter or a ... The first electronic method for measuring pH was ... the accuracy of pH ...
The bottom of a pH electrode balloons out into a round thin glass bulb. The pH electrode is best thought of as a tube within a tube. The inner tube contains an unchanging 1×10 −7 mol/L HCl solution. Also inside the inner tube is the cathode terminus of the reference probe.
Clap-o-meter; Class of accuracy in electrical measurements; Clifton nanolitre osmometer; Clinometer; Cole's quadrant; Compressometer; Constant fraction discriminator; Continuous-scan laser Doppler vibrometry; Corrosion monitoring; Cover meter; Creep-testing machine; Creepmeter; Cross bow quadrant; Current clamp; Cylindrical coordinate measuring ...
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