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Chapter A6. Field MeasurementsNational Field Manual for the Collection of Water-Quality Data (TWRI Book 9)6.3 Specific electrical conductanceBy D.B. Radtke, J.V. Davis, and F.D. Wilde This section of Chapter 6 is available as a pdf file: Download a copy of Adobe Acrobat Reader for free. AbstractElectrical conductance is a measure of the capacity of a substance to conduct an electrical current. The specific electrical conductance (conductivity) of water is a function of the types and quantities of dissolved substances it contains, normalized to a unit length and unit cross section at a specified temperature. This section of the National Field Manual (NFM) describes U.S. Geological Survey (USGS) guidance and protocols for measurement of conductivity in ground and surface waters. Contents6.3 Specific Electrical Conductance 6.3.1 Equipment and supplies 6.3.1.A Conductivity sensors 6.3.1.B Equipment maintenance 6.3.2 Calibration 6.3.3 Measurement 6.3.3.A Surface water In situ measurement Subsample measurement 6.3.3.B Ground water Downhole and flowthrough-chamber measurement Subsample measurement 6.3.4 Troubleshooting 6.3.5 Reporting Selected references Return to Chapter A6 Contents Page Return to Field Manual Table of Contents Section 6.3 Archived Versions: |