IECEx Guide
An Informative Guide comparing various elements of both
IECEx and ATEXINTERNATIONAL ELECTROTECHNICAL COMMISSION SCHEME FOR CERTIFICATIONTO STANDARDS RELATING TO EQUIPMENT FOR USE IN EXPLOSIVE ATMOSPHERES(IECEx SCHEME)

Brief Comparison between IECEx and ATEXIntroductory Note

Since the introduction of the IECEx On-Line Certificate of Conformity, late 2003, there has beena constant flow of inquires seeking an explanation of the differences between the IECEx Schemeand European ATEX System.
This document aims to provide a brief overview of the differences between the IECEx and theATEX Systems relating to specific items that are commonly raised.
This document is not a full listing of the differences and the reader is encouraged to consult an
appropriate organization, body or individual when in need of a more detailed explanation of suchdifferences.
Likewise, the information contained in this document is for information purposes with the rules ofthe IECEx Scheme and ATEX system taking precedence at all times.

Document History
Date2008 08

Summary
Original Issue (Version 1)

Address:
IECEx Secretariat
SAI Global Building
286 Sussex StreetSydney NSW 2000
Australia

Tel: +61 2 8206 6940
Fax: +61 2 8206 6272
Email: chris.agius@iecex.com
Internet: www.iecex.com

IECEx Informative Guide – IECEx/ATEX comparison August 2008

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An Informative Guide comparing various elements of both
IECEx and ATEX

Brief Table of Comparison
ITEM
Organisation / Management

IECEx
Industry Representatives(Manufacturers, Certification Bodies, Ex Equipment End
Users, Regulators, Community interests)

ATEX
E. U. Commission(Government Regulatory)Aim

One Single Certificate, for any hazardous area productand Services recognised and accepted worldwide(Market Acceptance)

Covers Equipment, Remove barriers to tradeand improve safety for equipment and workers

Validity / Legal

Today:ATEX Directive is Law in all the E. U. Countries- Products with IECEx Certificate accepted in several (Mandatory application)
countries- Alternatively a single test report (ExTR) can be
Limited to Europe
sent to any IECEx Certifier to issue locally
accepted certification

Field of Application

Current:- Electrical and Non electrical products and systems- Gas / Dust Industries- Now Covering SERVICE INDUSTRIES, e.g. Repair
and Overhaul

Standards Used

International Standards only , e.g. IEC-Electrical and non electrical products
and systems
Gas / Dust Industries
Equipment ONLY

Any recognised Standard may be applied
provided it meets the Essential Health andSafety Requirements of the Directive. However,the E.U. Commission approves list ofHarmonised Standards.
Allows for Interpretation

Compliance to Standards is mandatory

Compliance to Standards not mandatory but is
IECEx Informative Guide – IECEx/ATEX comparison August 2008

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An Informative Guide comparing various elements of both
IECEx and ATEX

ITEM

Certification ProcedureIECEx

ATEX
generally used to assess products

ExCBs issue [for Certified Equipment Program]:- ExTR (Product Type)- Ex QAR (production facility quality audit)- IECEx CoC (Certificate of Conformity)

ExNBs issue- EC Type examination certificate- Ex QAN (Quality Assessment notificationfor production facility)

ExCBs issue [for Certified Service Facilities Program]- CAR (IEC 60079-19 Compliance Report Form)- FAR (Facilities Audit Report Form)- IECEx CoC (Certificate of Conformity)
On-Line Certificate of Conformity System - Reports are officially registered on IECEx website- Electronic On-Line CoC available for full public
view, acts as master controlled version

Common Rules applicable to all applications- Rules of Procedure for each Program (IECEx 02,IECEx 03, IECEx 04)- Operational Document ODs provide Standard
operating procedures to be followed by all ExCBs- Technical Decision Sheets- Accessible full listing along with all Scheme
documents maintained and available via single
IECEx website location- Single appeals body available- Decisions of the Management Committee arebinding on all ExCBs, Certificate Holders etc.
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An Informative Guide comparing various elements of both
IECEx and ATEX

ITEM

Conformity Assessment

IECEx

ATEX

For IECEx Certified Equipment Program:
ExTR + QAR = IECEx Certificate of Conformity (CoC)ExTR = IECEx Test Report
QAR = IECEx Quality Assessment Report

Declaration of Conformity by Manufacturer todeclare that he is in possession of necessary
documents and reports.
-Certificate issued by ExNB only for
category 1 / 2 and M 1 / 2 electricalequipment-Self certification allowed for Category 3and Category 2 Mechanical.

Applicable to ALL products, no difference between Zones
or products
CoC issued via Secure IEC Website ensures FULL Publicaccess to issued CertificatesSelf Certification not permitted

For IECEx Certified Services:-Does not cover service facilities.

FAR + Assessment of Competencies = IECEx Certificate
FAR = Facilities Audit Report

Applicable to ALL Services
CoC issued via Secure IEC Website ensures FULL Publicaccess to issued CertificatesSelf Certification not permitted
Organisms for Certification

All ExCBs and ExTLs are subject to the following
assessment:

IECEx Informative Guide – IECEx/ATEX comparison August 2008

PageATEX Notified Bodies (ExNBs) appointed byindividual nomination of the governments of-3-

IECEx Guide
An Informative Guide comparing various elements of both
IECEx and ATEXITEMIECEx

ATEX
their countries.

-Initial Peer Assessment by a 3 member IECEx
Assessment Team, prior to entry to IECEx-Annual Surveillance of ExCBs and ExTLs-

5 Year re-assessment for all ExCBs and ExTLs

A common assessment system does not exist.
Surveillance of ExNBs dependant upon nationalgovernments

Dedicated IECEx Technical Secretariat to manage day today operations of the IECEx Scheme
IECEx Management Committee (ExMC)
IECEx Technical Assessment Group (ExTAG)
IECEx Conformity Mark Committee (ExMarkCo)

Manufacturer Surveillance

ExCB maintains the Status of the IECEx Certificate ofConformity based on the outcome of follow up Quality
Audits, QARs

ExNBs conduct regular audits of manufacturers

Work place Requirements

Nothing – Refers to National regulations

ATEX Directive 137 contains special
requirements for workers and management.

Putting IECEx and ATEX Together
The Key Elements:- Technically Identical Standards for Electrical Equipment since 2005 (very few exceptions)- When using IEC Standards a single set of Tests and assessments can be used for both IECEx and ATEX, in accordance with the respective
rules- An ATEX EC Type Examination can be based on an IECEx ExTR BUT ATEX documentation alone is not sufficient for IECEx- QA audits are the same for both IECEx and ATEX.
IECEx Informative Guide – IECEx/ATEX comparison August 2008

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IECEx Guide
An Informative Guide comparing various elements of both
IECEx and ATEX

ITEM

IECEx Informative Guide – IECEx/ATEX comparison August 2008

IECEx

ATEX

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