EUROLAB
astm-g31-laboratory-immersion-corrosion-testing
Corrosion and Salt Spray Testing ASTM B117 Salt Spray (Fog) Testing for Corrosion ResistanceASTM B117 Salt Spray TestingASTM B368 Corrosion of Stainless SteelsASTM B537 Galvanic Corrosion TestingASTM B845 Cyclic Corrosion TestingASTM D5894 Cyclic Exposure of Painted PanelsASTM D610 Evaluation of Rust on Painted SurfacesASTM D714 Blistering Resistance of PaintsASTM D870 Water Resistance Testing of CoatingsASTM F2129 Corrosion Testing of Cardiovascular DevicesASTM F2129 Cyclic Potentiodynamic Polarization for StentsASTM F746 Crevice Corrosion EvaluationASTM F746 Crevice Corrosion TestingASTM G123 Cyclic Corrosion TestASTM G123 Cyclic Corrosion TestingASTM G142 Evaluation of Corrosion in Condensed EnvironmentsASTM G15 Electrochemical Testing MethodsASTM G150 Cyclic Corrosion Tests Using Alternate ExposuresASTM G18 Accelerated Corrosion TestingASTM G18 Accelerated Corrosion Testing of MetalsASTM G182 Cyclic Corrosion Testing for CoatingsASTM G2 Salt Fog Testing for Coated SurfacesASTM G28 Methods for Accelerated Corrosion TestingASTM G31 Immersion Corrosion Test MethodASTM G31 Immersion Corrosion TestsASTM G31 Laboratory Immersion TestASTM G31-12 Corrosion Immersion Test for MetalsASTM G44 Corrosion Fatigue TestASTM G44 Corrosion Fatigue TestingASTM G46 Evaluation of Corrosion Under InsulationASTM G48 Pitting and Crevice Corrosion TestingASTM G48A Pitting and Crevice Corrosion Resistance TestASTM G49 Pitting Corrosion ResistanceASTM G5 Potentiostatic and Potentiodynamic Anodic PolarizationASTM G50 Evaluation of Corrosion in Aqueous MediaASTM G61 Corrosion Fatigue of MetalsASTM G61 Corrosion Fatigue of MetalsASTM G85 Annex A1 – Acetic Acid Salt SprayASTM G85 Annex A2 – Acidified Salt Fog TestASTM G85 Annex A3 – Prohesion TestASTM G85 Annex A4 – Acetic Acid Salt Spray TestASTM G85 Annex A5 – SO2 Salt Fog TestASTM G85 Cyclic Corrosion TestASTM G85 Modified Salt Spray Testing ProceduresASTM G95 Cyclic Corrosion Test ProceduresASTM G96 Corrosion Testing of Metals in BiofluidsISO 10289 Corrosion Testing in Simulated Body FluidsISO 10289 Corrosion Testing in Synthetic Body FluidsISO 10289 Electrochemical Tests for Medical DevicesISO 10993-18 Chemical Characterization Considering CorrosionISO 11130 Microbial Corrosion TestingISO 11130 Microbiologically Influenced Corrosion TestingISO 11474 Electrochemical Testing of Corrosion InhibitorsISO 11845 Corrosion of Metallic Materials in Blood ContactISO 11845 Corrosion Resistance of Materials in Medical ApplicationsISO 11955-2 Determination of Corrosion ResistanceISO 12944 Corrosion Protection of Steel Structures by PaintsISO 12944 Protective Coatings for Steel StructuresISO 14971 Risk Management Including Corrosion EffectsISO 16163 Corrosion of Metals in Medical ImplantsISO 16701 Corrosion Testing of Medical DevicesISO 16701-1 Corrosion Testing for Implant DevicesISO 16772 Corrosion Protection SystemsISO 16772 Protective Coatings and Corrosion PreventionISO 16773-1 Corrosion Protection by Organic CoatingsISO 17474 Corrosion Tests on MetalsISO 17475 Electrochemical Techniques in Corrosion TestingISO 19277 Guidelines for Corrosion Testing in Medical DevicesISO 20340 Performance Requirements for Protective CoatingsISO 20340 Specification for Paint PerformanceISO 2360 Measurement of Metal ThicknessISO 2360 Measurement of Metal Thickness by Eddy CurrentISO 2812 Paint Resistance to HumidityISO 2812 Paints and Varnishes – Determination of Resistance to HumidityISO 3651-2 Evaluation of Metallic Corrosion Using Salt SprayISO 4628 Visual Evaluation of CorrosionISO 4628 Visual Examination of Paints and CorrosionISO 4628-1 Visual Rating of Corrosion and Coating DefectsISO 6270-1 Resistance to HumidityISO 8044 Corrosion Testing MethodsISO 8044 General Principles of CorrosionISO 8044 General Principles of Corrosion TestingISO 8407 Cleaning of Corroded SurfacesISO 8407 Corrosion Removal from Corroded SurfacesISO 8407 Removal of Corrosion Products from Test SpecimensISO 9223 Corrosivity of AtmospheresISO 9224 Corrosion Rate MeasurementISO 9226 Corrosion Product AnalysisISO 9226 Corrosion Product Analysis TechniquesISO 9227 Corrosion Tests in Artificial Atmospheres - Salt Spray TestISO 9227 Salt Spray Testing

ASTM G31 Laboratory Immersion Corrosion Testing: A Comprehensive Guide to Eurolabs Expert Services

ASTM G31 Laboratory Immersion Corrosion Testing is a widely recognized and accepted standard for evaluating the corrosion resistance of metals in various environments. This testing method, as specified in ASTM G31, involves immersing test specimens in corrosive media to assess their performance under specific conditions.

The relevant standards governing this testing service include:

  • ASTM G31-72: Standard Practice for Laboratory Immersion Corrosion Testing of Metals

  • ISO 9223:2017: Corrosion tests in artificial atmospheres - General requirements

  • EN ISO 9223:2012: Corrosion tests in artificial atmospheres - General requirements

    • These standards provide a framework for conducting laboratory immersion corrosion testing, ensuring that results are reliable and comparable across different laboratories.

    International and National Standards

    ASTM G31 is an American standard, but it has been adopted or referenced by numerous international and national standards organizations. Some notable examples include:

  • ISO 9223:2017: Corrosion tests in artificial atmospheres - General requirements

  • EN ISO 9223:2012: Corrosion tests in artificial atmospheres - General requirements (European Standard)

  • TSE EN ISO 9223:2012: Corrosion tests in artificial atmospheres - General requirements (Turkish Standard)

    • These standards demonstrate the widespread acceptance and adoption of ASTM G31, ensuring that results are consistent across different regions and industries.

    Standard Development Organizations

    The development and maintenance of ASTM G31 involve collaboration between various standard development organizations, including:

  • ASTM International: American Society for Testing and Materials

  • ISO: International Organization for Standardization

  • CEN: European Committee for Standardization

    • These organizations work together to ensure that standards are up-to-date, relevant, and meet the needs of industry stakeholders.

    Standard Evolution and Updates

    Standards like ASTM G31 evolve over time as new technologies and methodologies emerge. Updates to these standards are driven by scientific advancements, industry feedback, and regulatory requirements. Regular reviews and revisions help maintain the relevance and accuracy of testing methods.

    Standard Compliance Requirements

    Compliance with relevant standards is essential for industries that rely on laboratory immersion corrosion testing. For example:

  • Aerospace: ASTM G31 is used to evaluate corrosion resistance in aircraft and spacecraft materials.

  • Automotive: Testing according to ASTM G31 helps ensure the durability of automotive components.

  • Oil and Gas: Compliance with ASTM G31 ensures the reliability of equipment in harsh environments.

    • Why This Specific Test is Needed

    ASTM G31 Laboratory Immersion Corrosion Testing is essential for evaluating corrosion resistance, which is critical to ensuring the safety, performance, and longevity of materials. Without this testing, industries may face significant risks, including:

  • Equipment failure: Unreliable materials can lead to catastrophic equipment failures.

  • Material degradation: Corrosion can compromise material properties, affecting performance and lifespan.

    • Business and Technical Reasons for Conducting Testing

    Conducting ASTM G31 testing provides numerous benefits, including:

  • Quality assurance: Ensures that materials meet required standards and specifications.

  • Risk assessment: Helps identify potential corrosion issues before they become major problems.

  • Cost savings: Reduces the financial burden associated with equipment failures or material degradation.

    • Industries and Sectors That Require This Testing

    A wide range of industries rely on ASTM G31 testing, including:

  • Aerospace

  • Automotive

  • Oil and Gas

  • Chemical Processing

  • Construction

    • These sectors benefit from the comprehensive evaluation of corrosion resistance provided by ASTM G31.

    Risk Factors and Safety Implications

    Ignoring or neglecting ASTM G31 testing can lead to significant safety risks, including:

  • Material failure: Unreliable materials can cause catastrophic equipment failures.

  • Environmental hazards: Corrosion can release hazardous substances into the environment.

  • Economic losses: Equipment failures or material degradation can result in substantial financial losses.

    • Quality Assurance and Quality Control Aspects

    ASTM G31 testing is an essential component of quality assurance and quality control processes. Regular testing ensures that materials meet required standards, minimizing the risk of equipment failure or material degradation.

    Step-by-Step Explanation of Test Conduct

    Conducting ASTM G31 Laboratory Immersion Corrosion Testing involves a series of steps:

    1. Sample preparation: Preparing test specimens according to standard procedures.

    2. Immersion testing: Immersing test specimens in corrosive media for specified periods.

    3. Measurement and analysis: Measuring corrosion effects using standardized techniques.

    Testing Equipment and Instruments

    ASTM G31 requires the use of specialized equipment, including:

  • Corrosion cells

  • Electrochemical instruments

  • Measuring devices

    • These tools ensure accurate and reliable measurements during testing.

    Immersion Testing Conditions

    Test conditions vary depending on the specific application or industry. Typical conditions include:

  • Temperature: Ambient temperature to elevated temperatures.

  • Humidity: Controlled humidity levels to simulate various environments.

  • Corrosive media: Various corrosive substances, such as saltwater or acidic solutions.

    • Measurement and Analysis Techniques

    ASTM G31 specifies standardized measurement techniques for assessing corrosion effects, including:

  • Weight loss measurements

  • Electrochemical impedance spectroscopy (EIS)

  • Scanning electron microscopy (SEM)

    • These techniques provide accurate and reliable results.

    Conclusion

    ASTM G31 Laboratory Immersion Corrosion Testing is a critical standard for evaluating the corrosion resistance of materials. Regular testing ensures that industries meet required standards, minimizing the risk of equipment failure or material degradation. By understanding the importance of this standard, industries can make informed decisions about material selection and implementation.

    Need help or have a question?
    Contact us for prompt assistance and solutions.

    CONTACT US +902127020000

    Latest News

    View all

    Eurolab Successfully Renews ISO 17025 Accreditation

    Read More

    Expanded Cosmetic Safety Testing Portfolio Now Available at Eurolab

    Read More

    Eurolab Launches Technical Training Series for Industry Professionals

    Read More

    JOIN US
    Want to make a difference?

    Careers