ASTM G111-21a

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

SIGNIFICANCE AND USE
5.1 Autoclave tests are commonly used to evaluate the corrosion performance of metallic and non-metallic materials under simulated HP and HTHP service conditions. Examples of service environments in which HP and HTHP corrosion tests have been used include chemical processing, petroleum production and refining, food processing, pressurized cooling water, electric power systems, and aerospace propulsion.  
5.2 For the applications of corrosion testing listed in 5.1, the service environment involves handling corrosive and potentially hazardous media under conditions of high pressure or high temperature, or both. The temperature and pressure, among other parameters, usually drive the composition and properties of the aqueous phase and, hence, the severity of the corrosion process. Consequently, the laboratory evaluation of corrosion severity cannot be performed in conventional low pressure glassware without making potentially invalid assumptions as to the potential effects of high temperature and pressure on corrosion severity.  
5.3 Therefore, there is a substantial need to provide standardized methods by which corrosion testing can be performed under HP and HTHP. In many cases, however, the standards used for exposure of specimens in conventional low-pressure glassware experiments cannot be followed due to the limitations of access, volume, and visibility arising from the construction of high-pressure test cells. This guide refers to existing corrosion standards and practices, as applicable, and then goes further in areas in which specific guidelines for performing HP and HTHP corrosion testing are needed.
SCOPE
1.1 This guide covers procedures, specimens, and equipment for conducting laboratory corrosion tests on metallic materials under conditions of high pressure (HP) or the combination of high temperature and high pressure (HTHP). See 3.2 for definitions of high pressure and temperature.  
1.2 The procedures and methods in this guide are applicable for conducting mass loss corrosion, localized corrosion, and electrochemical tests as well as for use in environmentally induced cracking tests that need to be conducted under HP or HTHP conditions.  
1.3 The primary purpose for this guide is to promote consistency of corrosion test results. Furthermore, this guide will aid in the comparison of corrosion data between laboratories or testing organizations that utilize different equipment.  
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Oct-2021
• ICS: 77.060 - Corrosion of metals
• Technical Committee: G01 - Corrosion of Metals
• Drafting Committee: G01.05 - Laboratory Corrosion Tests

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: G111 − 21a
Standard Guide for
Corrosion Tests in High Temperature or High Pressure
1
Environment, or Both
This standard is issued under the fixed designation G111; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This guide covers procedures, specimens, and equip-
E8/E8M Test Methods for Tension Testing of Metallic Ma-
ment for conducting laboratory corrosion tests on metallic
terials
materials under conditions of high pressure (HP) or the
G1 Practice for Preparing, Cleaning, and Evaluating Corro-
combination of high temperature and high pressure (HTHP).
sion Test Specimens
See 3.2 for definitions of high pressure and temperature.
G4 Guide for Conducting Corrosion Tests in Field Applica-
1.2 The procedures and methods in this guide are applicable
tions
for conducting mass loss corrosion, localized corrosion, and
G5 Reference Test Method for Making Potentiodynamic
electrochemical tests as well as for use in environmentally Anodic Polarization Measurements
induced cracking tests that need to be conducted under HP or G30 Practice for Making and Using U-Bend Stress-
Corrosion Test Specimens
HTHP conditions.
G31 Guide for Laboratory Immersion Corrosion Testing of
1.3 The primary purpose for this guide is to promote
Metals
consistency of corrosion test results. Furthermore, this guide
G34 Test Method for Exfoliation Corrosion Susceptibility in
will aid in the comparison of corrosion data between labora-
2XXX and 7XXX Series Aluminum Alloys (EXCO Test)
tories or testing organizations that utilize different equipment.
G38 Practice for Making and Using C-Ring Stress-
Corrosion Test Specimens
1.4 The values stated in SI units are to be regarded as
G39 Practice for Preparation and Use of Bent-Beam Stress-
standard. The values given in parentheses after SI units are
Corrosion Test Specimens
provided for information only and are not considered standard.
G46 Guide for Examination and Evaluation of Pitting Cor-
1.5 This standard does not purport to address all of the
rosion
safety concerns, if any, associated with its use. It is the
G49 Practice for Preparation and Use of Direct Tension
responsibility of the user of this standard to establish appro-
Stress-Corrosion Test Specimens
priate safety, health, and environmental practices and deter-
G59 Test Method for Conducting Potentiodynamic Polariza-
mine the applicability of regulatory limitations prior to use.
tion Resistance Measurements
G78 Guide for Crevice Corrosion Testing of Iron-Base and
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard- Nickel-Base Stainless Alloys in Seawater and Other
Chloride-Containing Aqueous Environments
ization established in the Decision on Principles for the
G106 Practice for Verification of Algorithm and Equipment
Development of International Standards, Guides and Recom-
for Electrochemical Impedance Measurements
mendations issued by the World Trade Organization Technical
G129 Practice for Slow Strain Rate Testing to Evaluate the
Barriers to Trade (TBT) Committee.
Susceptibility of Metallic Materials to Environmentally
Assisted Cracking
G170 Guide for Evaluating and Qualifying Oilfield and
Refinery Corrosion Inhibitors in the Laboratory
1
This guide is under the jurisdiction ofASTM Committee G01 on Corrosion of
Metals and is the direct responsibility of Subcommittee G01.05 on Laboratory
2
Corrosion Tests. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2021. Published December 2021. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1992. Last previous edition approved in 2021 as G111 – 21. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/G0111-21A. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
G111 − 21a
G184 Practice for Evaluating and Qualifying Oil Field and under simulated HP and HTHP service conditions. Examples
Refinery Corrosion Inhibitors Using Rotating Cage ofserviceenvironmentsinwhichHPandHTHPcorrosiontests
G185 Practice for Evaluating and Qualifying Oil Field and have been used include chemical processing, petroleum pro-
RefineryCorrosionInhibit
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: G111 − 21 G111 − 21a
Standard Guide for
Corrosion Tests in High Temperature or High Pressure
1
Environment, or Both
This standard is issued under the fixed designation G111; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This guide covers procedures, specimens, and equipment for conducting laboratory corrosion tests on metallic materials under
conditions of high pressure (HP) or the combination of high temperature and high pressure (HTHP). See 3.2 for definitions of high
pressure and temperature.
1.2 Tests conducted under HP or HTHP by their nature have special requirements. This guide establishes the basic considerations
that are necessary when these conditions must be incorporated into laboratory corrosion tests.
1.2 The procedures and methods in this guide are applicable for conducting mass loss corrosion, localized corrosion, and
electrochemical tests as well as for use in environmentally induced cracking tests that need to be conducted under HP or HTHP
conditions.
1.3 The primary purpose for this guide is to promote consistency of corrosion test results. Furthermore, this guide will aid in the
comparison of corrosion data between laboratories or testing organizations that utilize different equipment.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
E8/E8M Test Methods for Tension Testing of Metallic Materials
G1 Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens
1
This guide is under the jurisdiction of ASTM Committee G01 on Corrosion of Metals and is the direct responsibility of Subcommittee G01.05 on Laboratory Corrosion
Tests.
Current edition approved Sept. 15, 2021Nov. 1, 2021. Published October 2021December 2021. Originally approved in 1992. Last previous edition approved in 20182021
as G111 – 97 (2018).G111 – 21. DOI: 10.1520/G0111-21.10.1520/G0111-21A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
G111 − 21a
G3G4 Practice for Conventions Applicable to Electrochemical Measurements in Corrosion TestingGuide for Conducting
Corrosion Tests in Field Applications
G5 Reference Test Method for Making Potentiodynamic Anodic Polarization Measurements
G30 Practice for Making and Using U-Bend Stress-Corrosion Test Specimens
G31 Guide for Laboratory Immersion Corrosion Testing of Metals
G34 Test Method for Exfoliation Corrosion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Test)
G38 Practice for Making and Using C-Ring Stress-Corrosion Test Specimens
G39 Practice for Preparation and Use of Bent-Beam Stress-Corrosion Test Specimens
G46 Guide for Examination and Evaluation of Pitting Corrosion
G49 Practice for Preparation and Use of Direct Tension Stress-Corrosion Test Specimens
G59 Test Method for Conducting Potentiodynamic Polarization Resistance Measurements
G78 Guide for Crevice Corrosion Testing of Iron-Base and Nickel-Base Stainless Alloys in Seawater and Other Chloride-
Containing Aqueous Environments
G106 Practice for Verification of Algorithm and Equipment for Electrochemical Impedance Measurements
G129 Practice for Slow Strain Rate Testing to Evaluate the Susceptibility of Metallic Materials to Enviro
...