Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering one-stop explosion-proof technology consulting services.
How to check the explosion-proof certification
Buyers and selectors of explosion-proof electrical equipment always opt for manufacturers or distributors with valid explosion-proof certificates.
So, as a consumer, how can users verify if the explosion-proof certificate is genuine and valid?
Currently, there are over a dozen authorized certification bodies in China that issue explosion-proof certificates.
There is no unified query platform for explosion-proof certification issued by various institutions.
Explosion-proof certificates issued by various institutions can only be checked on their respective websites.
Of course, every issuing organization can verify the authenticity of certificates by phone.
If the query certificate is genuine, the main parameters and validity period will be displayed below.
Of course, it wouldn't be found then.
It's worth noting that due to each issuing authority manually uploading their certification documents, there is a certain lag.
That being said, the newly acquired certificate may not yet be searchable on their website, which would require direct consultation with the issuing authority.

What should a company pay attention to when applying for an explosion-proof certification?
Many clients are baffled when inquiring about the application for explosion-proof certification, not knowing where to start.
Based on years of industry experience, Zhongnuo Testing summarizes several points to note when a company applies for an explosion-proof qualification certificate.
Are you sure of the product's explosion-proof marking?
Do you offer samples and technical drawings?
3. Can we accommodate product modifications?
4. Have you identified a specific certification body?
These 4 points are注意事项 for applying for explosion-proof certification. For specific application procedures, feel free to message or leave a comment. Shenzhen Zhongnuo Testing Technology Co., Ltd. offers one-on-one services to answer your questions.

What should be noted when applying for explosion-proof certification?
Is the product design in accordance with the GB/T3836 standards?
2. Can certification documents be provided?
(1) Drawing Documents: Includes circuit diagrams, assembly drawings, structural drawings, PCB layouts, part number diagrams, BOM sheets, etc.
(2) Product Corporate Standards and Instructions
(3) Product Name, Model, Applicant Company
(4) Samples: Complete machine samples, batteries, unencapsulated circuit boards, non-metallic material surface samples, etc.
(5) Additional Materials: Casting Sealing Process Documents, Copy of Ex Component Explosion-Proof Certificate, Battery Testing Report, Shell Material Testing Report, Wireless Transmission Power Testing Report, etc.
Not all of the above information is required; it depends on the actual structure of the product and its explosion-proof type.
3. Do you have engineers with explosion-proof technology expertise?
4. Are there specific requirements for certification bodies and explosion-proof ratings?
5. Next is the budget for the costs.
For more details, please DM Shenzhen ZhongNuo Testing Technology Co., Ltd. for communication!

Expiration Date and Renewal of Explosion-Proof Certificate
The current validity period for domestic explosion-proof certification is 5 years from the date of issuance.
If the certificate is due to expire, you may choose to renew it or replace it. When the explosion-proof qualification certificate of the enterprise is about to expire,
The company should provide an application letter for certificate renewal within three months before and after the validity period, and should bring relevant documents for a new application for renewal.
Overseas explosion-proof certification, such as ATEX and IECEx certificates, is valid for a specific period.
Because their method of evidence collection is the type test method.
A combination of product certification and factory production quality system audit.
Ensure the validity of the certificate.
explosion-proof certification application consulting services - Shenzhen ZN Testing Technology Co., Ltd.