New Published IEC 60079-18:2025


The fifth edition of IEC 60079-18 has been published in June 2025, while the latest edition of the same European harmonized standard is still EN 60079-18:2015+A1:2017.

New Published IEC 60079-18:2025

The fifth edition of IEC 60079-18 has been published in June 2025, while the latest edition of the same European harmonized standard is still EN 60079-18:2015+A1:2017.

Question : is it possible to issue an ATEX certificate for the explosion-proof products, having Ex m protection, based on the newly published IEC 60079-18:2025?

Answer : Yes, for the explosion proof products having encapsulation protection (Ex m), according to ATEX directive (2014/34/EU) requirements, it is possible that other than and in addition to the relevant EU harmonized standards (e.g. EN 60079-18), the conformity assessment procedure and subsequent ATEX certification, to be performed based on other harmonized specifications (e.g.IEC 60079-18), therefore:

It is possible to issue the ATEX certificate with referring to IEC 60079-18:2025. in addition to EN 60079-18:2015+A1:2017.


Question : what kind of changes have been made to assessment and certification under the new standard IEC 60079-18:2025?

Answer : the procedure and acceptance condition of type tests remains unchanged in new edition (IEC60079-18:2025), and only limited changes in the definitions and constructional requirements, have been applied.


Question : what steps should holders of ATEX certificates based on the current European standard (EN 60079-18:2015+A1:2017) take to evaluate and obtain new ATEX certificate based on the new IEC 60079-18:2025?

Answer : For the purpose of existing additional IEC 60079-18:2025, it is necessary to perform the following below assessment and providing supplementary documents (if needed) by the manufacturer in the product technical file.

if you use mobile and are not able to see the whole table, to download the risk assessment file, click here.

clause of IEC 60079-18:2025

Subject of standard clause

Explanation of the significance of the changes

Type of standard change

applicability for the current project

Reason of applicability

Risk of raising non-conformity against 

IEC 60079-0:2017

Necessary measures, in case of raised risk

Minor

Extension

Major

No change

5.2. b)

Specification of compound

Specification has been extended for clarification.           Curing conditions have been added

   

x

         

5.3.2

Specification of compound

Dielectric strength test according to ANSI/UL 746A has been added as alternative.

 

x

           

7.2.1

Fault examination

For the level of protection “mc” faults need to be considered regarding the separation distances.

   

x

         

7.2.3

Isolating components

Another possibility for the construction of transformer according to IEC 60079-7 EPL “eb” added.

 

x

           

7.5.1

Switching contacts

Rating of compound shall not be exceeded was added as clarification.

   

x

         

7.5.2

Switching contacts

Consideration of fault conditions has been added.

   

x

         

 

whatsapp