Second Edition of the ISO 19901-8 Standard for Marine Soil Investigations

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ABSTRACT:  The second edition of the ISO standard Marine Soil Investigations, ISO 19901-8, was published October 2023 by the ISO committee TC67/SC7 as prepared by the geotechnical working group SC7/WG10. The new edition has adopted a title and scope change to also include the lower carbon industries. All clauses of the standard have undergone thorough technical revisions following feedback from industry stakeholders, addressing aspects such as the uncertainty of depth measurements and cone penetration tests (CPTs). The second edition introduces changes to enhance clarity of reporting requirements, redefines roles and responsibilities, and updates the calibration and verification procedures for cone penetrometers, with reference to the second edition of ISO 22476-1. The document optimises the referencing to project specifications, and emphasizes a focus on data accuracy, uncertainty analysis, and the interaction between geotechnical and geophysical disciplines. Furthermore, it promotes the application of best practices for laboratory testing, aligning closely with other related ISO standards, including ISO 19901-10 for marine geophysical investigations with respect to an integrated site characterisation approach. The paper discusses the motivation and scope of the new inclusions and amendments of the second edition and how this revision ensures that the standard remains relevant and robust in supporting safe and effective offshore infrastructure development.

5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)

17 - Design Standards, Certification and Risk Mitigation