Shenzhen ZhongNuo Testing Technology Co., Ltd. offers ATEX and IECEx certification consulting services. We are well-versed in international explosion-proof standards such as IEC 60079, EN 60079, and ISO 80079. We are familiar with the international explosion-proof certification factory audit system and can provide reference materials, preliminary explosion-proof technology, and factory inspections for certification. We offer robust support for enterprises seeking export certification for explosion-proof products!
Explosion-proof electrical products, also known as Ex products, must obtain explosion-proof certification before they can be used in hazardous explosive areas.
To eliminate unnecessary duplicate inspections and certifications of Ex products across international borders.
Established in 1996 to promote international trade, the guo ji Diangong Hui Explosion-Proof Electrical Product Certification Organization, abbreviated as IECEx certification system, was officially founded.

Can IECEx certification be converted to a domestic explosion-proof certification? -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
Currently, the IECEx certification is driven by standards, which is a voluntary certification.
But the IECEx certification is well-recognized in the international market.
Most IECEx member states directly or indirectly recognize IECEx certifications.
If the product has obtained IECEx certification,
Provide a valid Report (Ex Report issued by other member countries' Ex certification bodies (Ex CB) within the IECEx system and the Factory Quality Condition Report (QAR)).
Testing is only partially required for manufacturers from other member states holding an IEC Ex certificate to apply for their regional certification pathways.
For instance, China, also a member of IEC, but explosion-proof products in China require an application for a Chinese explosion-proof certificate or coal safety certification.
This cannot be substituted with IECEx. In summary, if a country is a member of the IEC but also has its own mandatory explosion-proof certification,
Typically, it is mandatory to apply for your own explosion-proof certification rather than simply substitute with an IECEx explosion-proof certification.
Of course, at times, it is possible to utilize the existing IECEx Report (additional test items may be required).
To convert into a domestic mandatory explosion-proof certification, but it is absolutely necessary to pass the confirmation and review by the application institution.

Can a domestic NEPSI explosion-proof certification be converted to an international IECEx certification?
Domestic explosion-proof certifications cannot be directly converted to IECEx certifications. This is because the domestic explosion-proof certification standards (GB/T3836) are essentially direct references to the international IECEx explosion-proof certification standards (IEC60079). Therefore, having NEPSI certification does not allow for a direct conversion to IECEx certification.

Do I need an ATEX certification if I already have an IECEx certificate? -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
If explosion-proof products are being exported to Europe, an ATEX certification must be applied for.
IECEx certification is the standard certification issued by the International Electrotechnical Commission (IEC) for electrical equipment used in explosive environments.
ATEX certification is the European Union's standard certification for the use of electrical equipment in explosive environments.
They belong to different certifications; one cannot replace the other.
ATEX Certification and IECEx Certification Consultancy Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.