1. In the preparation stage of certification materials, the following materials need to be prepared:
1. Apply for three certificates of enterprises (business license, organization code certificate and tax registration certificate);
2. enterprise standards for products, which should include the name of enterprise standard, enterprise number, date of publication and implementation, basis for compilation, proposer, drafter, cited documents, product specifications and models, basic parameters, explosion-proof marks, use environment conditions, explosion-proof related technical conditions, test methods, inspection rules, judgment methods, product marks, packaging and transportation conditions, etc. The enterprise standard template can be downloaded from the Internet;
3. the product instruction manual, which should include the basic parameters of the product, environmental conditions for use, explosion-proof marks, product appearance, installation and use specifications, safety precautions, warnings and other precautions related to explosion-proof;
4. product drawings, which should include assembly drawing, parts drawing related to explosion protection, circuit schematic diagram, printed circuit board drawing, silk screen drawing, component material list and nameplate drawing, etc., and drawings unrelated to explosion protection are not required. The drawings shall reflect the explosion-proof structure and parameters;
5. Description of model specifications. If it is a series product, there must also be a description of model specifications, which can be placed in enterprise standards and specifications;
6. process documents, such as products with pouring and sealing structure, need to provide pouring and sealing process documents;
7. battery specification, products with batteries in them shall be provided;
8. If the parts with explosion-proof certificates are used in the products, the explosion-proof certificates of the corresponding parts shall be provided;
9. All the above materials are in duplicate, and each page is stamped with the official seal.
2. Product sample sending and inspection stage:
1. Select explosion-proof laboratories recognized by the state (***9), submit an application and sign an inspection contract;
2. submit the technical data for review, and those that fail to pass the review need to be returned for revision;
3. According to the product specifications and model series, the representative products are sent for inspection, and the samples to be sent for inspection should be consistent with the provided product drawings. The number of prototypes depends on the explosion-proof type and specifications of the products, generally 1-3 pieces, 3 pieces of glass, 3 pieces of samples for N-type or potting type, and at least 1 set of parts before potting type. Non-metallic standard samples should be provided for those with non-metallic shells, if there is a special disassembly structure.
4. Conduct the test
3. Obtain the certificate
1. Receive the certificate and report and check whether the information is wrong;
2. Check online whether the certificate number is consistent with the paper certificate;
3. Complete the certification.
from anhong authentication network.