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    Basic Process of applying for an Ex Certification

    SINO Testing Services

    | 2025-11-12|Return

    The process of explosion-proof certification mainly consists of the following key steps, with the entire cycle usually taking about 2 months.

    1. Clarify Certification Requirements

    Determine the type of certification based on the product's application and target market, such as the domestic Explosion-proof Certificate, Explosion-proof 3C Certification, or international certifications (e.g., ATEX Certification, IECEx Certification).

    2. Prepare Submission Materials

    Three categories of documents must be prepared:

    Product Technical Documents: General assembly drawings, electrical schematic diagrams, list of electrical components, product specifications, enterprise standards, etc.

    Enterprise Qualification Documents: Business License

    Instructions for Submitted Samples: The samples shall be consistent with the technical documents, accompanied by the qualification certificates of explosion-proof accessories (if applicable).

    3. Review of Drawings and Materials

    Explosion-proof engineers of Shenzhen Sino-test Testing Technology Co., Ltd. will conduct a detailed assessment of the compliance of the drawings and materials with explosion-proof standards based on the product drawings provided by the customer and the certification requirements, and put forward rectification suggestions and requirements in a timely manner. The customer shall cooperate in the rectification.

    4. Sample Testing

    Send the samples to the laboratory for explosion-proof testing, including explosion-proof structure inspection, temperature group test, IP protection class test, etc. The testing cycle usually takes 2 to 4 weeks.

    5. Factory Inspection (if applicable)

    Factory audits are required for certifications such as the Explosion-proof 3C Certification, to inspect production equipment, production processes and quality system documents.

    6. Review and Issuance of Certificates

    After the samples pass the testing, the certification body will review the documents and issue the Explosion-proof Qualification Certificate or Explosion-proof 3C Certificate.

    The above information is sourced from the sharing by STS For a detailed understanding of the requirements for explosion-proof certification, please feel free to contact us!



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