Explosion proof certificate: a document used to determine whether the equipment meets the requirements of the standard, undergoes type testing, and adapts to routine testing. The certificate can be for Ex devices or Ex components.
At present, the validity period of the domestic explosion-proof certificate is 5 years from the date of issuance.
If the certificate expires, you can choose to renew or renew it.
When the validity period of the explosion-proof certificate of the enterprise is about to expire, the enterpriseZhongnuo TestingAn application letter for certificate replacement should be provided within three months before and after the validity period, and the following information should be brought to reapply for certificate replacement. If there is any unexpected situation, it should be notified in a timely mannerZhongnuo TestingThe center. The application letter includes the product name, model, original explosion-proof level, original explosion-proof certificate number, and an explanation of whether the product has been changed. The enterprise should also send the expired explosion-proof certificate and the inspected technical data toZhongnuo TestingThe center will re-examine and provide samples for retesting.
Foreign explosion-proof certificates, such as ATEX and IECEx certificates, have no limited validity period. Because their method of obtaining evidence is through type testing, which combines product certification with factory production quality system review to ensure the validity of the certificate.
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