Categories

• Laboratories

Disciplinary Keywords

• Density Measurement
• Electrical Conductivity Measurement
• Geochemistry
• Oxygen Concentration Measurement
• Petrophysics
• Photometry
• Redox Potential Measurement
• Sonic Velocity
• pH Measurement

Instrumentation

Laboratory instrumentation

Instruments

• Autoclaves

• Conductivity Sensor

  Sensors that measure the electrical conductance per unit distance in an electrolytic or aqueous solution. (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects pision, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords)

• Density Meter

• Oxygen Electrode

• Photometer

  Photometers are instruments used for measuring the luminance, luminous intensity, or luminance of a light source; similar to a radiometer, but with an output weighted by the wavelength response of the human eye. (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects pision, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords)

• Redox Electrode

• Ultrasonic Transducer

• pH-sensitive Electrode

  Potentiometric electrochemical sensor that measures pH as a linear function of electrode potential. Measurement principles or methods include the use of an ion-selective electrode (see glass pH-sensitive electrode), ion-selective field effect transistor, metal-metal oxide electrodes, or redox electrode (e.g. hydrogen electrode, quinhydrone electrode). (Source: IUPAC; https://doi.org/10.1515/pac-2018-0109)