‌Product Design Standards‌: shouFirstly, it is necessary to confirm whether the product design complies with the relevant standards of GB/T 3836. For example, explosion-proof products should refer to GB/T 3836.1 and GB/T 3836.2, intrinsically safe products should refer to GB/T 3836.1 and GB/T 3836.4, etc.

‌Certification Documents‌Complete certification documents are required, including schematics, assembly drawings, structural drawings, BOM (Bill of Materials), manuals, corporate standards (CS), etc. Additional documents may be needed for certain products, such as battery specifications, wireless transmission power reports, potting process files, shell material reports, and explosion-proof certificates for electrical components.

‌Sample‌Generally, 2 samples are required. For large equipment that requires on-site inspection, a functional prototype is needed. Some cases may also require the provision of batteries, shell samples, uncapped circuit boards, piezoelectric components, etc.

Note that not all of the above information is required; the specifics depend on the product structure and explosion-proof type for further assessment. If you are unfamiliar with explosion-proof design standards, certification procedures, or drawing preparation, or wish to save time and effort in obtaining the explosion-proof certification, you may choose a professional explosion-proof certification service provider, such as...Shenzhen ZhongNuo Inspection Technology Co., Ltd.We will provide you with full-process agency application services.

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