International Standard Iso 19901-1 May 2026

is the primary international standard for determining meteorological and oceanographic (metocean) design and operating conditions for offshore structures in the oil and gas industries. It provides the framework for characterizing environmental factors—such as wind, waves, and currents—that impact the safety and integrity of offshore platforms throughout their entire lifecycle. Core Objectives

The standard serves two main purposes in offshore engineering: international standard iso 19901-1

: Considerations for water levels, air and sea temperatures, and ice (though specific arctic requirements are deferred to ISO 19906 ). Relationship to Other Standards Relationship to Other Standards : These are frequent

: These are frequent events expected during the standard service life of a structure, used primarily for operational planning and fatigue analysis. Key Technical Components : For offshore structures located

: These are rare, high-impact events used to ensure the structure can withstand severe storms or environmental anomalies without failure. Parameters Covered

: It provides requirements for how these parameters should be applied during the design, construction, and operational phases of all types of offshore structures. Key Technical Components

: For offshore structures located in arctic environments.