Key Takeaways
ISO 10855
- The latest ISO 10855 standard provides a globally harmonised framework for offshore containers.
- Covers the full lifecycle: design (ISO 10855-1), lifting sets (ISO 10855-2), and inspection (ISO 10855-3).
- Best suited for international offshore operations where global recognition is critical.
EN 12079
- European-origin standard, influential in shaping ISO 10855.
- Still relevant for European operators with existing fleets.
- Gradually being phased out in favour of ISO 10855.
DNV 2.7-1
- Certification standard from Det Norske Veritas (DNV).
- Highly respected for rigorous third-party inspection.
- Often chosen when maximum safety assurance is required.
Key Decision Factors
- For global acceptance, choose ISO 10855 container standards.
- For regional Europe, EN 12079 remains practical.
- For safety-critical projects, DNV 2.7-1 offers unmatched credibility
Introduction
Offshore containers are critical to the safe transport of equipment, tools, and materials across some of the harshest environments in the world. To ensure reliability and safety, containers must be built and certified according to internationally recognised standards.
Among the most important are ISO 10855, EN 12079, and DNV 2.7-1—each offering guidelines that shape how offshore containers are designed, tested, and maintained.
While these standards overlap in purpose, they differ in scope, regional adoption, and specific technical requirements. For operators, understanding these distinctions is essential when selecting the most appropriate standard for their operations.
This article explores the background, requirements, and advantages of each before offering a side-by-side comparison to help you make informed decisions.
What are offshore container standards, and why do they matter?
Offshore containers are not ordinary shipping units. Unlike conventional cargo containers, they are specifically engineered for lifting, transporting, and storing goods in offshore environments, where high winds, rough seas, and extreme weather pose unique challenges.
To safeguard people, assets, and the environment, regulatory bodies and industry organisations have developed dedicated offshore container standards. These standards:
- Define design and construction requirements to ensure containers can withstand demanding offshore conditions.
- Establish safety protocols that reduce risks during lifting and handling.
- Specify testing and certification processes to verify compliance and maintain industry confidence.
Without consistent standards, offshore operations would face increased risks of equipment failure, accidents, and costly downtime.
By aligning with recognised frameworks like ISO 10855, EN 12079, and DNV 2.7-1, operators ensure containers meet the strict demands of offshore logistics while satisfying client and regulatory expectations.
Overview of offshore container standards
Offshore container standards serve as a common framework to ensure safety, quality, and consistency across the global oil and gas and energy supply chain. Although they share the same fundamental goal – safe transport of goods and equipment in offshore environments, each standard differs in origin, technical details, and global adoption.
ISO 10855
ISO 10855 is the most recent and internationally harmonised standard for offshore containers. Published by the International Organization for Standardization, it was designed to provide a global benchmark that aligns requirements previously set out in regional frameworks like EN 12079 and DNV 2.7-1.
The standard is divided into three parts:
- ISO 10855-1: General requirements for design, manufacture, and marking.
- ISO 10855-2: Lifting sets and associated components.
- ISO 10855-3: Periodic inspection, examination, and testing.
This three-part structure makes the ISO 10855 standard a comprehensive guideline for the full lifecycle of an offshore container—from manufacturing through to in-service maintenance.
EN 12079
EN 12079 is a European standard that historically served as the primary framework for offshore containers within the European Union. Like ISO 10855, it specifies requirements for design, testing, certification, and periodic inspection.
EN 12079 is divided into three sections, mirroring the structure later adopted by ISO 10855:
- Part 1: Offshore container design, manufacture, and marking.
- Part 2: Lifting sets.
- Part 3: Periodic inspection and testing.
Although largely superseded by ISO 10855 on the international stage, EN 12079 remains relevant in certain European markets and continues to inform container design and operational practices.
DNV 2.7-1
DNV 2.7-1, developed by Det Norske Veritas (now DNV), is a widely recognised certification standard that originated in Norway and has seen global uptake, particularly within the offshore oil and gas sector.
Unlike ISO and EN standards, which are developed through broad industry consensus, DNV 2.7-1 is a proprietary certification standard issued by a classification society.
It sets requirements for design, materials, welding, testing, and inspection of offshore containers. Many operators value DNV certification due to its reputation for rigorous safety assurance and the global acceptance of “DNV certified” equipment.
ISO 10855 vs EN 12079 vs DNV 2.7-1: A detailed comparison
Although ISO 10855, EN 12079, and DNV 2.7-1 all serve the same purpose, they differ in scope, technical detail, and global recognition. Below is a breakdown of how each standard addresses container design, safety, and certification.
Design and construction requirements
ISO 10855 provides a comprehensive global framework for the design and manufacture of offshore containers. An ISO 10855 container must meet strict specifications for structural integrity, materials, and welding to ensure safe performance in offshore conditions.
The three-part structure of the standard ensures that design is aligned with both lifting set requirements and ongoing maintenance protocols.
EN 12079 has similar technical provisions for design and construction, given that ISO 10855 was developed as an international extension of it. However, EN 12079 is still more regional in focus, applying primarily across European offshore operations.
DNV 2.7-1 places strong emphasis on the classification society’s own design and testing expertise. Containers designed to DNV 2.7-1 must comply with robust requirements for material selection, welding quality, and load resistance.
Many offshore operators view DNV certification as a mark of additional assurance beyond regulatory minimums.
Safety and compliance standards
The ISO 10855 standard sets out comprehensive safety requirements to ensure offshore containers are suitable for lifting, stacking, and transport under extreme conditions. Safety is embedded throughout its three parts, from design to periodic inspection.
EN 12079 mirrors these requirements but remains slightly less harmonised, since it was primarily intended for the European market. Operators outside Europe increasingly shift towards ISO 10855 to meet global client and regulatory expectations.
DNV 2.7-1 adds an additional layer of compliance by incorporating DNV’s independent verification. Containers certified to DNV 2.7-1 are often considered industry-leading in safety performance, making them a preferred choice where safety margins are critical.
Testing and certification
Under ISO 10855, containers must undergo rigorous prototype and production testing, including load tests, impact tests, and lifting tests. Certification is granted by accredited bodies that verify compliance with the full ISO 10855 standard.
EN 12079 requires similar prototype and production testing procedures. However, as ISO 10855 gained international recognition, EN 12079 certification is now often used as a stepping stone or in legacy operations.
DNV 2.7-1 certification involves both testing and third-party inspection carried out directly by DNV or approved surveyors. This level of direct involvement gives DNV-certified containers additional credibility in the global offshore market.
Which standard is best for offshore operators?
Selecting the right offshore container standard depends on operational needs, geographic location, and client expectations. While all three frameworks—ISO 10855, EN 12079, and DNV 2.7-1—offer proven approaches to container safety and performance, each has unique strengths and limitations.
Choosing the right standard for your offshore operations
For operators working internationally, the ISO 10855 standard is typically the most suitable choice.
As a globally harmonised framework, it ensures that containers meet requirements recognised across regions, reducing the risk of incompatibility with client or regulatory demands. For new projects, adopting ISO 10855 provides long-term assurance and future-proofing.
EN 12079 may still be relevant for organisations operating primarily within Europe, especially where existing fleets and infrastructure are already aligned with the standard. However, its regional focus means it is less attractive for global projects compared to ISO 10855.
DNV 2.7-1 is often the preferred option when clients or regulators demand third-party verification by a trusted classification society. Operators who prioritise an additional level of assurance, particularly in high-risk offshore environments, frequently select DNV-certified containers.
In practice, many offshore operators maintain a mix of containers certified to different standards to accommodate varying client and project requirements.
Benefits and drawbacks of each standard
Ultimately, the “best” standard depends on operational context. For global versatility, the ISO 10855 standard is the clear leader. For regional compliance in Europe, EN 12079 still holds relevance. Where safety assurance is paramount, DNV 2.7-1 offers unmatched credibility.
ISO 10855
- Benefits: Global recognition, comprehensive lifecycle coverage (design, lifting sets, inspection), alignment with modern safety practices.
- Drawbacks: As a relatively newer standard, some operators may face higher upfront compliance costs when transitioning existing fleets.
EN 12079
- Benefits: Familiarity within European markets, structured approach that influenced ISO 10855.
- Drawbacks: Limited global acceptance, gradually being phased out in favour of ISO 10855.
DNV 2.7-1
- Benefits: Highly respected third-party certification, regarded as a benchmark for safety and reliability.
- Drawbacks: Proprietary to DNV, meaning certification can be more costly and dependent on one classification society.
Conclusion
Offshore container standards play a critical role in ensuring the safety, reliability, and efficiency of offshore operations. While ISO 10855, EN 12079, and DNV 2.7-1 share common goals, their differences in scope, recognition, and certification processes mean that the right choice depends on an operator’s specific needs.
For international operations, the ISO 10855 standard offers the most versatile and widely accepted framework. EN 12079 continues to serve regional European markets, while DNV 2.7-1 provides the reassurance of rigorous third-party certification where safety margins are paramount.
By understanding these distinctions, offshore operators can make informed decisions that align with both regulatory requirements and client expectations. To learn more about offshore container solutions and standards, visit MGS Offshore.
