ASTM G200-09

    Standard Test Method for Measurement of Oxidation-Reduction Potential (ORP) of Soil

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    1. Scope

    1.1 This test method covers a procedure and related test equipment for measuring oxidation-reduction potential (ORP) of soil samples removed from the ground.

    1.2 The procedure in Section 9 is appropriate for field and laboratory measurements.

    1.3 Accurate measurement of oxidation-reduction potential aids in the analysis of soil corrosivity and its impact on buried metallic structure corrosion rates.

    1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1498 Test Method for Oxidation-Reduction Potential of Water

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    G3 Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing

    G15 Terminology Relating to Corrosion and Corrosion Testing

    G57 Test Method for Field Measurement of Soil Resistivity Using the Wenner Four-Electrode Method

    G187 Test Method for Measurement of Soil Resistivity Using the Two-Electrode Soil Box Method


    ICS Code

    ICS Number Code 13.080.30 (Biological properties of soil)

    UNSPSC Code

    UNSPSC Code 11111501(Soil)


    DOI: 10.1520/G0200-09

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