IECEx Product Certification Scheme
The IECEx System is an international certification scheme operated by the IEC which manufacturers can use as a basis of demonstrating third-party conformity assessment to recognized international standards.
Ensuring compliance with the IECEx System is essential for demonstrating third-party conformity assessment to recognized international standards, facilitating market access across various jurisdictions.
Technical Requirements
Navigating the conformity assessment process can be complex for both experienced manufacturers and newcomers to the sector.
Hazardous Areas (Potentially Explosive Atmospheres)
Hazardous Areas are classified into Zones and Safe Areas under relevant IEC (for IECEx) and EN (for ATEX) standards, based on the frequency and duration of explosive atmospheres. Additionally, Hazardous Areas are subdivided by Gas or Dust Groups and Temperature Classes, dependent on the explosion properties and auto-ignition temperatures.
Equipment Specifications
Equipment for use in Potentially Explosive Atmospheres is specified by an Equipment Category (ATEX) or an Equipment Protection Level (EPL) under IECEx, defining the safety level and suitable zone of use.
- Zone of intended use
- ATEX Category
- IECEx EPL
- Zone 0: 1G Ga
- Zone 1: 2G Gb
- Zone 2: 3G Gc
- Zone 20: 1D Da
- Zone 21: 2D Db
- Zone 22: 3D Dc
Technical Standards
Standards such as IEC/EN 60079 and ISO/EN 80079 outline protection concepts for achieving appropriate gas/dust group and temperature class levels.
Related Directives, Schemes, and Standards
The IECEx System certifies equipment for use in Explosive Atmospheres, supported by standards defining protection concepts.
- IEC/EN 60079-0 General Requirements
- IEC/EN 60079-1 Flameproof Ex d
- IEC/EN 60079-2 Pressurisation Ex p
- IEC/EN 60079-5 Quartz-filled Ex q
- IEC/EN 60079-6 Oil-filled Ex o
- IEC/EN 60079-7 Increased Safety Ex e
- IEC/EN 60079-11 Intrinsic Safety Ex i
- IEC/EN 60079-15 Non Incendive Ex n
- IEC/EN 60079-18 Encapsulated Ex m
- IEC/EN 60079-28 Optical safety Ex op
- IEC/EN 60079-31 Dust protection Ex t
- ISO/EN 80079-36 General Requirements (mechanical equipment)
- ISO/EN 80079-37 constructional safety "c", control of ignition source "b", liquid immersion "k" Ex h
Our Offering
DNV offers comprehensive evaluation, testing, and certification services for both ATEX and IECEx approvals. We provide pre-evaluation services to assess technical and compliance requirements upfront.
We offer a range of additional Hazardous Area Services globally, including assemblies of equipment and market access for regions like USA, Canada, and Brazil.
DNV offers a full scope of IECEx product certification services designed for manufacturers who require third party evaluation, testing and certification of their products to demonstrate conformity to the IECEx International Electrotechnical Commission System for Certification.
Our IECEx Certification Body and ATEX Notified Body Hazardous Area services are issued by DNV Presafe AS in Oslo, Norway.
