IECEx Certification:
The Global Passport for HazLoc Safety
While UL is the standard for North America and ATEX is the law in Europe, IECEx is the “Global Passport.” It is an international certification system designed to facilitate the world trade of equipment and services for use in explosive atmospheres while maintaining a single, high-level standard of safety.
The Role of IECEx in Global Industry
The IECEx System (International Electrotechnical Commission System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres) is a voluntary system. However, it is the most widely recognized framework globally because it is based on IEC International Standards.
The ultimate goal of IECEx is “One track, one certificate, one mark”—allowing a manufacturer to test their product once and have that test accepted by participating countries worldwide (such as Australia, Brazil, China, and many others) without the need for redundant local testing.
Expert Insight: Think of IECEx as the “Gold Standard of Evidence.” Even in regions where a local certification is legally required, an IECEx test report (ExTR) and Quality Assessment Report (QAR) are almost always the primary documents used to “fast-track” that local approval.
The Three Pillars of the IECEx System
Unlike ATEX, which focuses primarily on the hardware, IECEx is a comprehensive safety ecosystem divided into three distinct schemes:
- IECEx Certified Equipment Scheme: This is the most common, covering the design, testing, and manufacturing of HazLoc hardware.
- IECEx Certified Service Facilities Scheme: This certifies the organizations that repair and maintain Ex equipment. It ensures that a “Flameproof” motor remains flameproof after a bearing change.
- IECEx Certificate of Personnel Competence (CoPC): This is unique to IECEx. It certifies the knowledge and skills of individual people (engineers, installers, and inspectors). It proves that the person working on your site actually understands the complexities of explosive atmospheres.
Decoding the IECEx Marking
IECEx markings are very similar to ATEX markings because they both use the same protection concepts, but you won’t see the European CE mark or the ATEX “Ex” Hexagon on a pure IECEx certificate.
- Ex: Symbol indicating that the product complies with the IEC 60079 series of standards.
- Protection Method: e.g., db (Flameproof), ia (Intrinsically Safe), pxb (Pressurized).
- Equipment Group: e.g., I (Mining), II (Gas), III (Dust).
- Gas/Dust Subgroup: e.g., IIC (Hydrogen) or IIIB (Non-conductive dust).
- Temperature Class: e.g., T6 (Max surface temp 85°C).
- Equipment Protection Level (EPL): e.g., Ga, Gb, or Gc. This is the IECEx way of defining the risk level (similar to ATEX Categories).
| EPL (IECEx) | EVNIRONMENT | RISK LEVEL | EQUIVALENT ATEX CATEGORY |
| Ga / Da | Zone 0 / 20 | Very High (Constant Risk) | Category 1 |
| Gb / Db | Zone 1 / 21 | High (Likely Risk) | Category 2 |
| Gc / Dc | Zone 2 / 22 | Enhanced (Unlikely Risk) | Category 3 |
Official IECEx Resources & Verification
The transparency of IECEx is one of its greatest strengths. Every valid certificate in the world is searchable in real-time.
- IECEx Online Certificate System: The world’s only real-time database where you can verify the status of any IECEx equipment, service facility, or personnel certificate.
- Official IECEx Website: The central portal for the latest system rules, guides, and news regarding international HazLoc safety.
- IECEx Personnel Certification Guide: Information for professionals looking to prove their expertise through the CoPC scheme.