ASTM G185-06
Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode
- Standard No.
- ASTM G185-06
- Release Date
- 2006
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM G185-06(2012)
- Latest
- ASTM G185-06(2020)e1
- Scope
Selection of corrosion inhibitor for oil field and refinery applications involves qualification of corrosion inhibitors in the laboratory (see Guide G 170
). Field conditions should be simulated in the laboratory in a fast and cost-effective manner (1).3 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.
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)
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.
1.1 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 the standard. The values given in parentheses are for information only.
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.
ASTM G185-06 Referenced Document
- ASTM D1141 Standard Practice for the Preparation of Substitute Ocean Water
- ASTM D4410 Terminology for Fluvial Sediment
- ASTM G1 Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens
- ASTM G102 Standard Practice for Calculation of Corrosion Rates and Related Information from Electrochemical Measurements
- ASTM G106 Standard Practice for Verification of Algorithm and Equipment for Electrochemical Impedance Measurements
- ASTM G111 Standard Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both
- ASTM G15 Standard Terminology Relating to Corrosion and Corrosion Testing
- ASTM G16 Standard Guide for Applying Statistics to Analysis of Corrosion Data
- ASTM G170 Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory
- ASTM G3 Standard Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing
- ASTM G31 Standard Practice for Laboratory Immersion Corrosion Testing of Metals
- ASTM G46 Standard Guide for Examination and Evaluation of Pitting Corrosion
- ASTM G5 Standard Reference Test Method for Making Potentiostatic and Potentiodynamic Anodic Polarization Measurements
- ASTM G59 Standard Test Method for Conducting Potentiodynamic Polarization Resistance Measurements
- ASTM G96 Standard Guide for Online Monitoring of Corrosion in Plant Equipment (Electrical and Electrochemical Methods)
ASTM G185-06 history
- 2020 ASTM G185-06(2020)e1 Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode
- 2016 ASTM G185-06(2016) Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode
- 2012 ASTM G185-06(2012) Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode
- 2006 ASTM G185-06 Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode
