What is ISO 23226 about?
ISO 23226 gives guidelines for the corrosion testing of metals and alloys exposed in deep-sea water, including the selection of the test site, components, and assembly of the test system, specimen preparation, testing procedure, evaluation after the retrieval from exposure sites, and test report.
ISO 23226 is applicable to the general corrosion exposure testing of metals and alloys as well as localized corrosion tests such as stress corrosion cracking (SCC) testing, galvanic corrosion testing, and crevice corrosion testing of specimens exposed in deep-sea water.
Testing with exposure in the deep sea of other materials such as composites and elastomers can also be carried out with reference to these guidelines, but the evaluation of these materials after the retrieval is different from that of metals and alloys. ISO 23226 provides useful information as a reference for conducting performance testing of sacrificial anodes in deep-sea water.
ISO 23226 can also provide useful information as reference for conducting performance testing of sacrificial anodes in deep-sea water.
NOTE: ISO 23226 does not include the performance testing of sacrificial anodes for cathodic protection in the field of the deep sea, which can be conducted using specified testing cells and equipment in the deep-sea exposure.
Who is ISO 23226 for?
ISO 23226 on the guidelines for the corrosion testing of metals and alloys exposed in deep-sea water is relevant to:
- Corrosion engineers
- Testing authorities
- Manufacturers of alloys
- Manufacturers of pump sleeves
- Spectroscopists
- Electrochemical engineers
- Pipeline engineers
Why should you use ISO 23226?
With the developments of the offshore oil and gas industry, the activities of exploration and production of oil and gas have been extended into the deep sea.
Many subsea equipment and systems for oil/gas production have been deployed in deep-sea water. There are also some instruments placed in the subsea for environmental observation and scientific exploration. ISO 23226 gives guidance on the corrosion testing of metals and alloys exposed in deep-sea water. The testing can be conducted based on the specified conditions and procedures, and meaningful comparisons may be made for different tests.
Overall, ISO 23226 is useful as it assists with the service environment for which the corrosion data is required. The selection of test sites is important for corrosion tests exposed in deep-sea water because the environment can vary at different test sites.