1. a Certificate of Conformity
IECEx 02 Certificates
Requirements for,
and content of
a Certificate of Conformity
Theo Pijpker
Certification Manager KEMA Quality B.V.

2. Topics ISO Guide 65 - Minimum requirements for the
contents of certificates
ISO Guide 67 - Certification System No. 5 elements
Current content of IECEx on-line certificates
How to deal with:
product families
the product description
component versus equipment certificates

3. ISO 65 minimum requirements
As a minimum, a certificate shall permit identification of
the following:
name and address of the supplier of the product(s)
the products certified, which may be identified by type or range of products
the product standards or other normative documents to which each product or product type is certified
the applicable certification system
the effective date of the certification

4. ISO 67 - Certification system 5 elements
sampling as requested by the CB
testing and/or assessment
initial assessment of the production process/QS
evaluation of test and assessment reports
decision on certification
licensing (right to use certificates or marks)
surveillance of the production process/QS
surveillance by testing or inspection of samples from the factory or the open market, or both

5. IECEx 02 Certificates
The on-line IECEx Certificates of Conformity include
(of course) the ISO 65 minimum requirements:
name and address of the supplier (manufacturer)
type or range of product(s) certified
product standards (IEC / series)
certification system (IECEx 02)
date of certification
The IECEx CoC however includes much more
information as required by ISO 65 >>

6. IECEx 02 certificates - additional information
Information provided but not required by ISO 65:
Types of protection
Marking
Production sites
Link to ExTR and QAR
Product description
Electrical data
If applicable: Ex d flamepath dimensions
Quite often: Notes for installation and use
If applicable: Conditions of certification (X-certificate)
Sometimes: Manufacturer’s documents

7. All that additional information: do we need it? (1)
When focussing on an IECEx CoC that is/will be
accepted worldwide, it must have a very clear and logical
format for all parties involved. Therefore:
Types of protection, marking, product description and electrical data all help to identify the products certified and should / must be in the CoC
Production sites and QAR are not directly linked to the product itself but are included in the CoC as part of the ISO 67 type 5 certification system

8. Additional information (2)
Notes for installation and use can perhaps better be replaced by a standard text in the CoC referring to the instructions provided with the equipment as verified by the ExCB
“X”- conditions and e.g. flamepath dimensions must be in the certificate as required by the standard used
Manufacturer’s documents: only the manufacturer and ExCB have full access to these documents, so why have them in the certificate?

9. Product families (1)
ISO 65: “the certified products may be identified by the type or range of product(s)”:
A limited number of models / types / variations can easily be identified in the body of the CoC
In case of a large product range (enclosures, barriers, terminal blocks) it must still be possible to identify every type from the scope of the certificate. Usually this requires an Annex to the CoC

10. Product families (2)
For determining the “logical” scope of the CoC, following questions may help:
same (main) type of protection?
Example: Ex d motors <-> Ex e motors
same function?
Example: an Ex i caplight versus an Ex e lighting fixture
same intended purpose?
Example: caplight <-> lighting fixture
any prescribed interconnections?
Example: Ex d [ia] transmitter with Ex ia remote sensor

11. Product description
Not required by ISO 65 but surely a good description
helps to identify the product.
When we write the description, should it be:
a functional description?
a safety concept description?
both?
Suggestion: 80 % safety, 20 % functional
How detailed should the description be?
Suggestion: not longer / more detailed than necessary to understand what kind of product is certified

12. Component versus equipment
Definitions (based on IEC ):
Equipment: items applied as a whole or in part for the utilization of (electrical) energy
Component: a part not intended to be used alone and which requires additional consideration when incorporated into equipment
Compared with an equipment CoC, a U-certificate must
often contain more information about the intended use
and operating limits of the component, to make sure that
the component can be used easily in the equipment.

13. Component certificates (1)
The series does not provide much guidance, ExCB must decide on a case-to-case basis what information should be included in the CoC
IEC requires that:
the operating temperature limits must be specified
a T-class shall not be specified.
Instead of T-class, often the temperature rise related to the max. allowed power dissipation before a T-class is reached is given
For terminal blocks, the rated current is given based on a temperature rise of 40 K

14. Component certificates (2)
Typical components:
Ex d enclosures
Ex i optocouplers, fuses
Ex e terminal blocks, enclosures
For enclosures the additional information in the certificate is of mechanical nature, e.g. the maximum allowed number/size of cable/conduit entries
For optocouplers, terminal blocks, fuses the additional information is merely of electrical nature, e.g. Um, U, I ratings
Any other useful information should be provided, depending on the type of protection

15. Recommendations
The ExTAG/92/CD paper, as prepared by Baseefa, is a good basis for further clarification of the content of a certificate, and should be developed further by a new (?) ExTAG working group
The ExTAG/92/CD, once approved, should be used by all ExCBs as soon as possible in order to assure more consistency regarding the content of IECEx certificates
Perhaps a similar document should be issued for the content of an ExTR?

16. Thank you for your attention !
Theo Pijpker
KEMA Quality B.V.