Shenzhen Zhongnuo Inspection Technology Co., Ltd. offers ATEX and IECEx certification consulting services, well-versed in international explosion-proof standards such as IEC 60079, EN 60079, and ISO 80079. Familiar with the international explosion-proof certification factory audit system, we provide reference materials, preliminary explosion-proof technology, and factory inspections for certification. We offer robust support for enterprise explosion-proof product export certification!
What does the explosion-proof marking Ex db ib IIC T4 Gb mean?
The explosion-proof marking can be considered a proof document for explosion-proof equipment. Through the explosion-proof marking, one can understand the type of explosion-proofing adopted by the equipment.
Explosive areas and防爆zones, etc.
What is an explosion-proof marking? What does an explosion-proof marking signify? How do you interpret the explosion-proof marking on explosion-proof equipment?
In response to these issues, ZhongNuo Inspection provides a detailed explanation for your reference.
For example, explosion-proof marking Ex db ib IIC T4 Gb.
This is a composite explosion-proof marking.
Ex indicates explosion-proof; all explosion-proof equipment must be marked with the Ex symbol.
DB IB refers to the explosion-proof type of protection for the equipment, which means it is both intrinsically safe and explosion-proof.
IIC refers to equipment suitable for explosive gas atmospheres of IIC class gases (representative and).
T4 refers to the temperature category, indicating that the surface temperature of the equipment does not exceed 135°C.
Gb refers to the equipment protection level, applicable to Zones 1 and 2.
The example above illustrates a common explosion-proof symbol used for equipment in an explosive gas environment.
If the equipment is used underground in coal mines or in environments with combustible dust, the explosion-proof markings are different.
If it's an ATEX explosion-proof certification mark, it gets more complex.
Corporate clients seeking more information on explosion-proof certifications and explosion-proof markings.
Feel free to DM Shenzhen ZN Technology Co., Ltd. at any time!

What are the applications for IECEx certification? -- Shenzhen ZhongNuo Inspection Technology Co., Ltd.
IECEx is an international certification, and there are several ExCB and ExTL in China as well.
It's widely known that the process for applying for an IECEx certification is rather complex, with a normal certification cycle of 5 to 6 months.
During the certification process, it is also necessary to provide and modify various certification materials and technical documents. Many businesses have indicated they cannot bear it.
So there are also many IECEx certified agents on the market, such as Shenzhen Zhongnuo Testing Technology Co., Ltd.
We are familiar with the product standards (IEC 60079 series) and system standards (ISO 80079-34) of IECEx certification.
Familiar with the entire, can provide certified document samples.
We can also assist with initial product explosion-proof design and rectification, as well as provide explosion-proof system training for corporate clients.
To ensure the company's application for IECEx certification.

What are ATEX certification and IECEx certification?
ATEX is the EU's CE certification directive for explosive atmosphere, and all explosion-proof products used in potentially explosive areas in the EU market must obtain ATEX certification.
It is mandatory; the certification standards are the EN60079 series.
IECEx certification is an international explosion-proof certification applicable to member countries of the IECEx system. Some member countries directly recognize the IECEx certification.
For instance, New Zealand and Australia; some member countries can convert their IECEx certification to local explosion-proof certification.
For instance, China is also a member of the IECEx system.
But China has its own explosion-proof certification system, adhering to the standard GB/T3836.
So products with IECEx certification still need to obtain domestic explosion-proof certification before they can be put into use.

IECEx explosion-proof certification applicable standards -- Shenzhen ZN Testing Technology Co., Ltd.
1. IEC 60079-0 Explosive Atmospheres, Part 0: Equipment, General Requirements
2. IEC 60079-1 Explosive Atmospheres, Part 1: Equipment Protected by a Flameproof "d" Enclosure
3. IEC 60079-2 Explosive Atmospheres, Part 2: Equipment Protected by Positive Pressure Enclosures, Type “p”
4. IEC 60079-5 Explosive Atmospheres, Part 5: Equipment protected by filling with sand type “q”
5. IEC 60079-6 Explosive Atmospheres, Part 6: Equipment protected by oil immersion "o"
6. IEC 60079-7 Explosive Atmospheres – Part 7: Equipment protected by intrinsic safety “i”
7. IEC 60079-11 Explosive Atmospheres, Part 11: Equipment protected by intrinsic safety "i"
8. IEC 60079-15 Explosive Atmospheres, Part 15: Equipment protected by non-sparking type “n”
9. IEC 60079-18 Explosive Atmospheres, Part 18: Equipment protected by “m” type of encapsulation
ATEX Certification and IECEx Certification Consultancy Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.