As defined by the International Maritime Organization, an offshore container is a "portable unit specially designed for repeated use in the transport of goods or equipment between fixed and/or floating offshore installations and ships. Known in the offshore oil and gas community as "slippery rails "as they are often used to transport large assemblies to drilling and production rigs.
DNV's certification standards 2.7-1, 2 and 3 are a globally recognized set of certification standards for offshore containers and marine service modules. The certification standards relate to the certification of all types of marine containers as transport units. The three typical stages of transportation are: shore-based residency (eg, forklifts), supply vessels, and loading and unloading offshore facilities. The certification standards include design requirements related to all three phases.
There are five basic steps for DNV approval and certification:
1. Certification of our (or our client's designation) written welding procedures, laboratory tests and welder qualifications
2. Evaluate and approve our primary device/skid/frame designs
3. Audit/Survey during initial welding start-up
4. Production：Audits/investigations during equipment manufacturing
5. Prototype testing：For "type" approval (type approval means a series of identical units are manufactured over a period)
DNV2.7-1 or DNV2.7-3? How to choose?
What is DNV certification?
DNV (Det Norske Veritas), a Norwegian classification society, merged with Germanischer Lloyd (GL) in September 2013 to form the world's largest classification society DNV GL Group.
As a classification society, DNV GL sets standards for the offshore, maritime, energy and oil and gas industries. The purpose of these standards is to provide users, operators and engineers with requirements, principles and acceptance criteria.
Two common standards are:
DNV2.7-1 and DNV2.7-3 in common
Difference between DNV2.7-1 and DNV2.7-3
Apart from the difference in standard details, the biggest difference is that the maximum gross weight (MGW) of dnV2.7-1 certified container is less than 25,000 kgs, and the MGW of DNV2.7-3 certified container is greater than 25,000 kgs.
Although DNV2.7-1 and DNV2.7-3 standards are set by DNV Classification Society, they are also recognized by other classification societies (BV, LRs, etc), which will issue corresponding certificates according to the same standards.
The specially designed ultra-wide explosion-proof lab container|workshop container| Pressure container is about to be delivered. Our technicians are cooperating with various inspections from the end customer and SGS to ensure that the performance of the container meets customer standards and industry standards.
TLS provides DNV2.7-1 standard | explosion-proof | which can be used in hazardous areas (ZONE 0, ZONE 1, AND ZONE 2) | special containers that meet A60 fire rating, we provide the independent certification from DNV | BV | LR | ABS | SGS.
Any requirements, please contact us directly:
Hotline: +65-65637288; +65-31386967
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1 WELDING INSPECTION