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Explosion proof certification is the process of determining whether equipment meets the requirements of explosion-proof standards, conducting type tests and routine tests for adaptation, and issuing relevant certificates of conformity. The certificate can be for Ex devices or Ex components.

Equipment and protective systems used in explosive gas environments must comply with multiple regulations, standards, and directives in order to enter the global trade market.

At present, there are roughly the following types of explosion-proof certifications worldwide:

 1. The ATEX certification of the European Union adopts EN standards.

The ATEX Explosion Protection Directive 2014/34/EU, which regulates equipment and protective systems used in potentially explosive environments, is a mandatory regulation among EU member states. Hazardous locations or explosion-proof equipment intended for installation in the EU must comply with the ATEX Directive 2014/34/EU. The ATEX directive ensures the free circulation of goods throughout the European Union through coordinated compliance procedures. Once the product has passed the instructions and obtained compliance certification, it can be affixed with the CE and Ex markings.

2. The International Electrotechnical Commission's IECEX certification adopts IEC standards.

The purpose of IECEx certification is to establish an international certification system for explosion-proof products, to achieve unified standards, certificates, and marks in the audit of explosion-proof products, and to enable products that meet the standards to quickly enter the markets of various countries through a multi country certification mechanism, thereby promoting international trade. Under the IECEx system, only accredited certification bodies (ExCB) and inspection laboratories (ExTL) are accepted to carry out certification work for this system.

3. The CU-TR certification in the CIS region (Russia, Belarus, Kazakhstan, Kyrgyzstan) adopts standards similar to IEC.

Customs Union Technical Regulation Certification, Also known as Customs Union Technical Specification Certification, its certification mark is EAC, so it is abbreviated as CU-TR certification or EAC certification in English. Starting from February 15, 2013, in order to obtain access to the Customs Union (Russia, Belarus, Kazakhstan, Armenia, and Kyrgyzstan) for hazardous site products, it is necessary to obtain EAC (Eurasian Conformity) Ex certification. The EAC Ex certificate indicates compliance with the Customs Union Technical Regulation TP TC 012/2011 "Directive on Safety Technical Specifications for Explosion proof Equipment".

4. Local explosion-proof certifications such as UL and FM in North America mainly adopt NEC's local standards.

5. China's explosion-proof certification adopts the national standard GB/T 3836.

According to the Standardization Law of the People's Republic of China, all explosion-proof standards are mandatory and must be enforced. Explosion proof products (including imports) used in China must be certified by a designated national explosion-proof inspection agency. Explosion proof inspection and certification institutions shall comply with Chinese national standardsGB/T 3836Series, for the review and testing of explosion-proof performance of explosion-proof motors, explosion-proof electrical appliances, explosion-proof lighting fixtures, explosion-proof instruments and meters, explosion-proof communication equipment, explosion-proof transportation vehicles, and explosion-proof mechanical equipment, and issuing explosion-proof qualification certificates. In addition to using the GB/T 3836 standard, domestic coal safety certification also adopts China's unique mining product industry standards.

6. ECASEx of the United Arab Emirates.

ECASEx (Emirates Conformity Assessment System Ex) is a mandatory certification required by the Emirates Authority for Standardization&Metrology (ESMA) for electrical equipment used in potentially explosive environments.

7. INMETRO in Latin America.

The INMETRO mark managed by the national audit organization in Brazil is mandatory certification, and manufacturers need to apply for INMETRO certification according to the local law Portaria 179:2010, which stipulates regulations on the use of equipment in hazardous areas.

 8. Taiwan, China Ts.

The Ministry of Labor of the Executive Yuan has entrusted the Industrial Technology Research Institute, a non-profit organization, to carry out type testing of explosion-proof products, conduct testing on explosion-proof products in accordance with the CNS 3376 series regulations, and issue explosion-proof qualification certificates. We also accept IECEx certificates and reports to enter the Taiwan market through certification transfer.

9. ANZEx Australia.

Australia (Australia and New Zealand) directly recognizes the IECEx certificate.

10. TIIS Japan.

The Japan Industrial Safety Technology Association (TIIS) is a designated explosion-proof electrical equipment testing organization by the Japanese Ministry of Health, Labour and Welfare. If you hold certification certificates, test reports, and technical documents related to IEC 60079 regulations, you can apply for conversion to TIIS certification in Japan.

11. Korean KCs.

If the manufacturer has obtained the IECEx certificate, they can apply for the Korean KC certificate with the certificate, test report, and technical documents, or be exempted from repeated testing. There are currently three main institutions that can issue KC certificates: KGS, KOSHA, and KTL. The certificate holder must be a company registered in South Korea.

12. Saudi Arabia SASO.

The Certificate of Conformity (CoC) issued by a certification body authorized by the Saudi Arabian Standards Organization (SASO) provides access to Saudi Arabia based on the IECEx certificate.