What Is an IECEx Ex Test Report (ExTR)?
An IECEx Ex Test Report (ExTR) is one of the most important technical documents within the IECEx Certification System. While the IECEx Certificate of Conformity confirms that a product has been certified, the ExTR provides the detailed engineering evidence supporting that certification.
The ExTR records the design evaluation, laboratory testing, construction assessment, and technical verification performed by an IECEx Testing Laboratory (ExTL). It demonstrates how explosion-protected equipment complies with the applicable IEC 60079 standards before certification can be granted.
Although many engineers are familiar with the IECEx Certificate of Conformity, fewer understand the critical role played by the ExTR during product certification. Understanding this document helps engineers, manufacturers, procurement teams, and inspectors better evaluate hazardous area equipment.
Quick Answer
Quick Answer
An IECEx Ex Test Report (ExTR) is the detailed technical assessment prepared by an IECEx Testing Laboratory (ExTL). It documents the testing, evaluation, and compliance assessment demonstrating that explosion-protected equipment satisfies the applicable IEC 60079 standards before an IECEx Certificate of Conformity can be issued.
What Is an IECEx Ex Test Report (ExTR)?
An IECEx Ex Test Report is the official technical report produced during the evaluation of equipment submitted for IECEx certification. It documents the engineering assessment performed by an IECEx Testing Laboratory and serves as the primary technical basis for certification.
Unlike the IECEx Certificate of Conformity, which summarizes the certification outcome, the ExTR contains detailed technical information describing how compliance with the relevant IEC standards has been demonstrated.
The ExTR is reviewed by an IECEx Certification Body (ExCB) before an IECEx Certificate of Conformity can be issued.
Why Is an ExTR Important?
The ExTR provides objective technical evidence that hazardous area equipment has successfully completed independent testing and evaluation.
Without an ExTR, an IECEx Certification Body cannot determine whether the equipment satisfies the applicable requirements of the IEC 60079 series.
The report provides confidence that the certified equipment has been evaluated for:
- Explosion protection performance
- Electrical safety
- Mechanical integrity
- Construction compliance
- Temperature performance
- Applicable protection concepts
For manufacturers, the ExTR serves as the technical foundation supporting product certification. For certification bodies, it provides the evidence required to issue an IECEx Certificate of Conformity.
Who Prepares the ExTR?
An ExTR is prepared by an IECEx Testing Laboratory (ExTL), which is a laboratory accepted within the IECEx Certification System to perform testing and technical evaluations of explosion-protected equipment.
The ExTL conducts testing in accordance with the applicable IEC 60079 standards and documents the results within the Ex Test Report.
The completed report is then submitted to the IECEx Certification Body (ExCB), which reviews the findings before deciding whether certification can be granted.
What Information Does an ExTR Contain?
Although the exact format may vary depending on the equipment and applicable standards, an Ex Test Report typically includes detailed engineering information such as:
- Manufacturer information
- Product identification
- Equipment description
- Applicable IEC 60079 standards
- Explosion protection concept
- Engineering drawings and construction assessment
- Laboratory test results
- Temperature rise evaluation
- Ingress protection assessment
- Assessment conclusions
The report provides substantially more technical detail than the Certificate of Conformity and is intended primarily for certification and engineering evaluation rather than routine field use.
How Is an ExTR Used During IECEx Certification?
The Ex Test Report plays a central role in the IECEx certification process. It provides the technical evidence required by the IECEx Certification Body (ExCB) to determine whether explosion-protected equipment complies with the applicable IEC 60079 standards.
The simplified certification process follows these steps:
- The manufacturer submits the product for certification.
- An IECEx Testing Laboratory (ExTL) performs testing and technical evaluation.
- The ExTL prepares the Ex Test Report (ExTR).
- The IECEx Certification Body (ExCB) reviews the ExTR together with the Quality Assessment Report (QAR).
- If all requirements are satisfied, the IECEx Certificate of Conformity (CoC) is issued.
Without a satisfactory ExTR, an IECEx Certificate of Conformity cannot be granted.
What Standards Are Evaluated in an ExTR?
The ExTR identifies the IEC standards used to evaluate the equipment. The applicable standards depend on the explosion protection technique used by the product.
Examples include:
| IEC Standard | Subject |
|---|---|
| IEC 60079-0 | General Requirements |
| IEC 60079-1 | Flameproof Enclosures (Ex db) |
| IEC 60079-7 | Increased Safety (Ex eb) |
| IEC 60079-11 | Intrinsic Safety (Ex i) |
| IEC 60079-18 | Encapsulation (Ex mb) |
| IEC 60079-31 | Protection by Enclosures for Dust (Ex tb) |
Additional IEC standards may be included depending on the product design and protection concept.
Typical Tests Documented in an ExTR
The exact testing program varies according to the equipment type and applicable standards, but an ExTR commonly documents:
- Construction assessment
- Mechanical strength testing
- Impact resistance testing
- Ingress Protection (IP) verification
- Temperature rise measurements
- Dielectric strength testing
- Creepage and clearance verification
- Flame transmission testing for flameproof equipment
- Thermal endurance evaluation
- Routine examination of product markings
Each test demonstrates compliance with specific technical requirements contained within the applicable IEC standards.
Who Uses an ExTR?
Although the ExTR is primarily a certification document, several organizations rely on the information it contains during the certification process.
| Organization | Purpose |
|---|---|
| IECEx Testing Laboratory (ExTL) | Documents technical evaluation and testing. |
| IECEx Certification Body (ExCB) | Reviews technical evidence before issuing certification. |
| Manufacturer | Supports product certification and future product revisions. |
| Regulatory Authorities | May review technical evidence during regulatory investigations. |
End users and plant operators rarely require the complete ExTR during routine operations, although they may request confirmation that certification has been properly completed.
Is an ExTR Publicly Available?
Unlike the IECEx Certificate of Conformity, the complete Ex Test Report is generally not published in the official IECEx online database.
The report contains detailed engineering information, product construction details, laboratory test results, and other technical data that may be commercially confidential.
Manufacturers normally retain the ExTR as part of their certification documentation, while the IECEx Certificate of Conformity provides the publicly accessible summary of certification.
What Is the Difference Between an ExTR and an IECEx Certificate?
Although closely related, the ExTR and the IECEx Certificate of Conformity serve different purposes.
| ExTR | IECEx Certificate of Conformity |
|---|---|
| Detailed technical evaluation. | Official certification document. |
| Prepared by an ExTL. | Issued by an ExCB. |
| Contains laboratory testing results. | Summarizes certification status. |
| Generally confidential. | Publicly searchable through the IECEx database. |
| Supports certification. | Confirms certification. |
The ExTR provides the technical justification for certification, while the Certificate of Conformity communicates the final certification outcome.
Common Misunderstandings About ExTR
An ExTR Is the Same as an IECEx Certificate
No. An Ex Test Report (ExTR) is a detailed technical report documenting the engineering evaluation and laboratory testing performed during certification. The IECEx Certificate of Conformity (CoC) is the official document issued by an IECEx Certification Body confirming that the equipment has successfully completed the certification process.
An ExTR Can Be Used Instead of an IECEx Certificate
No. The ExTR supports the certification process but does not represent certification itself. Only an IECEx Certificate of Conformity demonstrates that a product has been formally certified under the IECEx Certified Equipment Scheme.
Every ExTR Is Publicly Available
No. Unlike IECEx Certificates of Conformity, ExTRs are generally not published in the official IECEx online database. They often contain confidential engineering information, product construction details, and laboratory test data that are retained by the manufacturer and certification body.
An ExTR Guarantees Regulatory Approval in Every Country
No. The ExTR supports IECEx certification, but individual countries may have additional regulatory requirements before hazardous area equipment can be legally installed or placed on the market.
Frequently Asked Questions (FAQ)
What is an IECEx Ex Test Report (ExTR)?
An IECEx Ex Test Report is the technical document prepared by an IECEx Testing Laboratory (ExTL) describing the testing and engineering evaluation performed on explosion-protected equipment during the IECEx certification process.
Who prepares the ExTR?
The ExTR is prepared by an IECEx Testing Laboratory (ExTL) that has been accepted within the IECEx Certification System to evaluate equipment against the applicable IEC 60079 standards.
Can I download an ExTR from the IECEx website?
Generally, no. The official IECEx online database publishes the Certificate of Conformity rather than the complete Ex Test Report, which usually contains confidential technical information.
Is an ExTR required before an IECEx Certificate can be issued?
Yes. The ExTR provides the technical evidence reviewed by the IECEx Certification Body (ExCB) before an IECEx Certificate of Conformity can be granted.
What is the difference between an ExTR and a QAR?
The ExTR evaluates the technical design and testing of the equipment, whereas the Quality Assessment Report (QAR) evaluates the manufacturer's quality management system to ensure certified products are consistently manufactured.
Conclusion
An IECEx Ex Test Report (ExTR) forms the technical foundation of the IECEx certification process. It documents the engineering assessment, laboratory testing, and compliance evaluation performed by an IECEx Testing Laboratory before an IECEx Certificate of Conformity can be issued.
Although the ExTR is generally not publicly available, understanding its purpose helps engineers, manufacturers, procurement specialists, and inspectors appreciate the rigorous technical evaluation behind IECEx-certified hazardous area equipment. Together with the Quality Assessment Report (QAR) and the IECEx Certificate of Conformity, the ExTR provides confidence that explosion-protected equipment has been independently assessed in accordance with the applicable IEC 60079 standards.
Technical Review
The information presented explains the technical purpose of the Ex Test Report (ExTR), its role within the IECEx certification process, and its relationship to the IECEx Certificate of Conformity (CoC) and the Quality Assessment Report (QAR). Engineers should always refer to the latest IECEx documentation and applicable IEC standards when evaluating hazardous area equipment.
References
- IECEx Certified Equipment Scheme – IECEx Official Documentation.
- IECEx Operational Documents (OD Series).
- IEC 60079-0 – Explosive Atmospheres – General Requirements.
- IEC 60079 Series – Explosive Atmospheres.
- IECEx Basic Rules and Rules of Procedure.
- IECEx Online Certificate Database.
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