ASTM G185 - 06(2012)

    Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode

    Active Standard ASTM G185 | Developed by Subcommittee: G01.05

    Book of Standards Volume: 03.02


      Format Pages Price  
    PDF 8 $43.00   ADD TO CART
    Hardcopy (shipping and handling) 8 $43.00   ADD TO CART


    Significance and Use

    5.1 Selection of corrosion inhibitor for oil field and refinery applications involves qualification of corrosion inhibitors in the laboratory (see Guide G170). Field conditions should be simulated in the laboratory in a fast and cost-effective manner (1).4

    5.2 Oil field corrosion inhibitors should provide protection over a range of flow conditions from stagnant to that found during typical production conditions. Not all inhibitors are equally effective over this range of conditions so that is important for a proper evaluation of inhibitors to test the inhibitors using a range of flow conditions.

    5.3 The RCE is a compact and relatively inexpensive approach to obtaining varying hydrodynamic conditions in a laboratory apparatus. It allows electrochemical methods of estimating corrosion rates on the specimen and produces a uniform hydrodynamic state across the metal test surface. (2-21)

    5.4 In this practice, a general procedure is presented to obtain reproducible results using RCE to simulate the effects of different types of coupon materials, inhibitor concentrations, oil, gas and brine compositions, temperature, pressure, and flow. Oil field fluids may often contain sand. This practice does not cover erosive effects that occur when sand is present.

    1. Scope

    1.1 This practice covers a generally accepted procedure to use the rotating cylinder electrode (RCE) for evaluating corrosion inhibitors for oil field and refinery applications in defined flow conditions.

    1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

    1.3 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

    D1141 Practice for the Preparation of Substitute Ocean Water

    D4410 Terminology for Fluvial Sediment

    G1 Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens

    G3 Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing

    G5 Reference Test Method for Making Potentiostatic and Potentiodynamic Anodic Polarization Measurements

    G15 Terminology Relating to Corrosion and Corrosion Testing

    G16 Guide for Applying Statistics to Analysis of Corrosion Data

    G31 Guide for Laboratory Immersion Corrosion Testing of Metals

    G46 Guide for Examination and Evaluation of Pitting Corrosion

    G59 Test Method for Conducting Potentiodynamic Polarization Resistance Measurements

    G96 Guide for Online Monitoring of Corrosion in Plant Equipment (Electrical and Electrochemical Methods)

    G102 Practice for Calculation of Corrosion Rates and Related Information from Electrochemical Measurements

    G106 Practice for Verification of Algorithm and Equipment for Electrochemical Impedance Measurements

    G111 Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both

    G170 Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory


    ICS Code

    ICS Number Code 75.200 (Petroleum products and natural gas handling equipment)

    UNSPSC Code

    UNSPSC Code 41114604(Corrosion testers)


    Referencing This Standard

    DOI: 10.1520/G0185-06R12

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM G185-06(2012), Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode, ASTM International, West Conshohocken, PA, 2012, www.astm.org

    Back to Top