Requirements for China Ex Certification Application

To apply for China Ex certification, manufacturers are typically required to prepare a set of technical documents and product samples for evaluation. The exact requirements may vary depending on the product type and certification scope.

Technical Documentation

Applicants are generally required to submit complete technical documentation, including:

• Schematic diagrams

• Assembly drawings

• Structural drawings

• Bill of Materials (BOM)

• User manual

• Operation and safety instructions

• Internal product specifications and technical standards

Supporting Technical Documents

Depending on the product design and application, additional supporting documents may be required, such as:

• Battery specifications

• Wireless transmission power test reports

• Potting process documentation

• Housing material reports

• Existing Ex certificates for key components

Product Samples

Manufacturers are typically required to provide product samples for testing and evaluation. Common requirements include:

• Product samples (usually 2 pcs)

Additional samples may be requested depending on the product structure and certification requirements, such as:

• Battery samples

• Housing samples

• Unsealed PCB boards

• Piezoelectric components

Important Note

The final documentation and sample requirements may vary based on product category, design complexity, and applicable China Ex certification standards. It is recommended to confirm specific requirements before submission to ensure a smooth certification process.