In industries like oil and gas, chemicals, and pharmaceuticals, potential explosive atmospheres from gases or dust are a constant risk. In these high-risk areas, a single spark could lead to catastrophic consequences. Therefore, ensuring the safety of both equipment and personnel is paramount.
The key to achieving this lies in choosing the correct explosion-proof certification for your equipment. These certifications aren't just a sign of compliance; they are a guarantee of quality and safety. In this article, we'll dive deep into three major authority certification systems: ATEx, IECEx, and CNEx, helping you understand their differences, functions, and importance.
ATEx Certification: The Passport to the European Market
ATEx (Appareils destinés à être utilisés en ATmosphères Explosibles) is a certification system used primarily in Europe. It is based on the European Union's ATEX Directive, which defines strict safety requirements for equipment and protective systems intended for use in explosive atmospheres.
IECEx Certification: The Global "Passport"
IECEx (International Electrotechnical Commission System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres) is an international certification system widely recognized by many countries worldwide. It is based on standards developed by the International Electrotechnical Commission (IEC).
CNEx Certification: The Mandatory Requirement for the Chinese Market
CNEx (China National Explosion-proof Certification) is a certification system specific to China. It is regulated by the State Administration for Market Regulation (SAMR) and is a mandatory legal requirement in China.
Why These Certifications Matter
Investing in equipment with authoritative explosion-proof certification brings long-term benefits to a company far beyond just a piece of paper:
Conclusion:
In hazardous environments, safety is not an option—it's a necessity. Choosing equipment with authoritative certifications like ATEx, IECEx, or CNEx is a smart investment in safety, legal compliance, and market success. By understanding and correctly applying these certification systems, you build a solid foundation of safety for your operations.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Product brochures:
Offshore pressurised mud logging cabin brochure
MCC | Switchgear | VFD | VSD pressurised shelter
Keywords: #Hazardous area certification, #ATEX certification, #IECEx, #CNEx compliant, #Explosion-proof equipment, #Industrial safety standards, #Ex protection methods, #Zone 1 Zone 2 classification, #Explosion protection techniques
The key to achieving this lies in choosing the correct explosion-proof certification for your equipment. These certifications aren't just a sign of compliance; they are a guarantee of quality and safety. In this article, we'll dive deep into three major authority certification systems: ATEx, IECEx, and CNEx, helping you understand their differences, functions, and importance.
ATEx Certification: The Passport to the European Market
ATEx (Appareils destinés à être utilisés en ATmosphères Explosibles) is a certification system used primarily in Europe. It is based on the European Union's ATEX Directive, which defines strict safety requirements for equipment and protective systems intended for use in explosive atmospheres.
- Applicable Region: Primarily EU member states.
- Certification Features: The ATEX Directive categorizes equipment into two main groups:
- Group I: For mining environments susceptible to firedamp and combustible dust.
- Group II: For all other surface industries.
- Marking: Products with ATEx certification bear the "Ex" marking, indicating their compliance with the ATEX Directive. If your equipment needs to be sold or used in the European market, ATEx certification is mandatory.
IECEx Certification: The Global "Passport"
IECEx (International Electrotechnical Commission System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres) is an international certification system widely recognized by many countries worldwide. It is based on standards developed by the International Electrotechnical Commission (IEC).
- Applicable Region: Over 30 member countries globally, including the US, Australia, Canada, Japan, and Singapore.
- Certification Features: The IECEx certification process involves rigorous testing, examination, and assessment of equipment to verify its conformity with IEC standards.
- Advantage: Due to its international mutual recognition, equipment with IECEx certification can easily enter global markets without undergoing repetitive testing in each country, greatly simplifying international trade and project implementation.
CNEx Certification: The Mandatory Requirement for the Chinese Market
CNEx (China National Explosion-proof Certification) is a certification system specific to China. It is regulated by the State Administration for Market Regulation (SAMR) and is a mandatory legal requirement in China.
- Applicable Region: China.
- Certification Features: The CNEx certification process requires products to undergo strict testing and evaluation to verify their compliance with Chinese explosion-proof standards (which often reference IEC standards but have their own specific differences).
- Importance: For any electrical equipment intended for use in hazardous environments within China, obtaining CNEx certification is a must to comply with local regulations.
Why These Certifications Matter
Investing in equipment with authoritative explosion-proof certification brings long-term benefits to a company far beyond just a piece of paper:
- Enhanced Safety: The stringent testing in the certification process ensures equipment reliability in hazardous environments. This minimizes the risk of explosive accidents and protects both valuable lives and assets.
- Legal Compliance: Adhering to the regulations and directives of ATEx, IECEx, or CNEx is fundamental for legal operations. Non-compliance can lead to hefty fines, legal consequences, and damage to a company's reputation.
- Expanded Market Access: IECEx certification serves as a passport to the global market. ATEx and CNEx certifications, in turn, open doors to the European and Chinese markets, helping you expand your business in specific regions.
- Standardization and Quality Assurance: These certifications provide uniform standards for the design, manufacturing, and use of explosion-proof equipment. This not only improves equipment interoperability but also ensures consistent quality and reliability.
Conclusion:
In hazardous environments, safety is not an option—it's a necessity. Choosing equipment with authoritative certifications like ATEx, IECEx, or CNEx is a smart investment in safety, legal compliance, and market success. By understanding and correctly applying these certification systems, you build a solid foundation of safety for your operations.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Product brochures:
Offshore pressurised mud logging cabin brochure
MCC | Switchgear | VFD | VSD pressurised shelter
Keywords: #Hazardous area certification, #ATEX certification, #IECEx, #CNEx compliant, #Explosion-proof equipment, #Industrial safety standards, #Ex protection methods, #Zone 1 Zone 2 classification, #Explosion protection techniques
Written by Oliver
In the energy, chemical, and industrial sectors, the stable operation of equipment depends not only on design and manufacturing quality but also on how easy it is to maintain. When customers purchase functional containers, energy storage systems, or explosion-proof equipment, one question comes up again and again: “Will maintenance be difficult later on?”
We understand that complicated wiring, cramped service space, and cumbersome upgrade processes can all increase maintenance costs and risks. That’s why we make “easy maintenance” one of our core design principles—right from the start—optimizing everything from structural layout to reserved interfaces.
1. Easier Wiring
We use separated wiring zones inside and outside the container—high-voltage vs. low-voltage, power vs. communication—to reduce interference and misconnection risks. All cable interfaces are clearly labeled, and quick-release explosion-proof connectors make on-site wiring faster and less labor-intensive.
2. Smarter Access for Servicing
Our internal layout follows an “easy to find, easy to reach” approach—service points are positioned for quick location and direct access. Wide aisles, service doors, and removable panels next to key components mean routine checks and replacements can be done without dismantling large sections, improving efficiency.
3. Flexible Upgrades
We plan ahead for the future, reserving expansion interfaces and mounting points during the design stage. Whether adding fans, replacing controllers, or increasing voltage levels, upgrades can be carried out without large-scale modifications—extending the equipment’s service life.
4. Reducing Maintenance Costs from the Start
These conveniences are not afterthoughts—they’re built into the design from day one. With modular structures, standardized parts, and clear documentation, we help customers keep maintenance effort low and reliability high.
5. Global Service Support
For maintenance needs, we have service hubs in key regions worldwide, equipped with professional teams and spare parts. While coverage is still limited, we are committed to improving response speed to help customers solve problems quickly.
Conclusion
Maintenance should not be a burden—it should be simple and manageable. By making wiring easier, servicing smoother, and upgrades more flexible, we help customers feel confident, comfortable, and in control throughout the entire life cycle of their equipment.
TLS Offshore Containers / TLS Special Containers is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Keywords:#Structural Strength,#Finite Element Analysis,#FEA Simulation,#Load-Bearing Capacity,#Stress Distribution,#Safety Verification,#Container Durability,#Lifting Point Testing,#Design Optimization,#Engineering Validation
We understand that complicated wiring, cramped service space, and cumbersome upgrade processes can all increase maintenance costs and risks. That’s why we make “easy maintenance” one of our core design principles—right from the start—optimizing everything from structural layout to reserved interfaces.
1. Easier Wiring
We use separated wiring zones inside and outside the container—high-voltage vs. low-voltage, power vs. communication—to reduce interference and misconnection risks. All cable interfaces are clearly labeled, and quick-release explosion-proof connectors make on-site wiring faster and less labor-intensive.
2. Smarter Access for Servicing
Our internal layout follows an “easy to find, easy to reach” approach—service points are positioned for quick location and direct access. Wide aisles, service doors, and removable panels next to key components mean routine checks and replacements can be done without dismantling large sections, improving efficiency.
3. Flexible Upgrades
We plan ahead for the future, reserving expansion interfaces and mounting points during the design stage. Whether adding fans, replacing controllers, or increasing voltage levels, upgrades can be carried out without large-scale modifications—extending the equipment’s service life.
4. Reducing Maintenance Costs from the Start
These conveniences are not afterthoughts—they’re built into the design from day one. With modular structures, standardized parts, and clear documentation, we help customers keep maintenance effort low and reliability high.
5. Global Service Support
For maintenance needs, we have service hubs in key regions worldwide, equipped with professional teams and spare parts. While coverage is still limited, we are committed to improving response speed to help customers solve problems quickly.
Conclusion
Maintenance should not be a burden—it should be simple and manageable. By making wiring easier, servicing smoother, and upgrades more flexible, we help customers feel confident, comfortable, and in control throughout the entire life cycle of their equipment.
TLS Offshore Containers / TLS Special Containers is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Keywords:#Structural Strength,#Finite Element Analysis,#FEA Simulation,#Load-Bearing Capacity,#Stress Distribution,#Safety Verification,#Container Durability,#Lifting Point Testing,#Design Optimization,#Engineering Validation
Written by Snowy
For functional containers working offshore or in coastal environments, the daily challenge isn’t just waves and wind — it’s the constant presence of salt spray in the air. Chloride ions in salt spray can penetrate coatings and even reach the steel itself, causing corrosion that weakens structural strength and shortens service life. To combat this, TLS has optimized every stage of welding, coating, and corrosion protection so that containers can last longer in harsh marine conditions.
1. Welding – The First Barrier Against Corrosion
Before leaving the factory, every weld is inspected to ensure there are no pores, slag inclusions, or other defects. During welding, TLS minimizes excess spatter and residue — not just for appearance, but to reduce tiny gaps where salt spray could start corrosion. For critical structural points, we use full welding rather than spot welding, which improves strength and reduces stress concentration points.
2. Coating – A Durable Protective Layer
Steel left unprotected near the sea can start rusting within months. TLS uses a multi-stage coating process: first, surfaces are sandblasted to remove scale and oil while creating a rough texture for better adhesion. Next, we apply a zinc-rich primer for cathodic protection, followed by a highly weather-resistant polyurethane topcoat that maintains color and adhesion under UV light and salt spray. Every coating layer meets strict thickness standards so that protection is not compromised by application variations.
3. Corrosion Protection – From Design to Final Details
Corrosion prevention starts at the design stage, not just during painting. TLS adds drainage slopes or holes in areas prone to water collection — such as the container base, door frames, and rainwater channels — to reduce moisture buildup. For bolts, locks, and other fittings, we use stainless steel or hot-dip galvanized materials, and then apply touch-up coatings after installation to avoid weak points.
4. Realistic Service Life Expectations
Under normal use and maintenance, TLS containers can maintain their structure and corrosion protection for around 20 years in a C5-M (marine, very high corrosion) environment. This doesn’t mean the container becomes unusable after 20 years — it means corrosion risks remain controlled and the coating still performs during this period. With lower usage or regular maintenance, lifespan can be even longer.
TLS Offshore Containers / TLS Special Containers is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Conclusion
Salt spray corrosion is a fact of life in coastal and offshore environments, but it doesn’t have to shorten your equipment’s life. With precise welding, advanced coating systems, and thoughtful corrosion prevention in design, TLS ensures every container can perform reliably for years, even in the toughest marine conditions.
Keywords:#Offshore Containers,#Salt Spray Corrosion,#Marine Environment Protection,#Welding Quality,#Coating System,#Corrosion Prevention,#Structural Strength,#Zinc-Rich Primer,#Polyurethane Topcoat,#C5-M Corrosion Resistance
1. Welding – The First Barrier Against Corrosion
Before leaving the factory, every weld is inspected to ensure there are no pores, slag inclusions, or other defects. During welding, TLS minimizes excess spatter and residue — not just for appearance, but to reduce tiny gaps where salt spray could start corrosion. For critical structural points, we use full welding rather than spot welding, which improves strength and reduces stress concentration points.
2. Coating – A Durable Protective Layer
Steel left unprotected near the sea can start rusting within months. TLS uses a multi-stage coating process: first, surfaces are sandblasted to remove scale and oil while creating a rough texture for better adhesion. Next, we apply a zinc-rich primer for cathodic protection, followed by a highly weather-resistant polyurethane topcoat that maintains color and adhesion under UV light and salt spray. Every coating layer meets strict thickness standards so that protection is not compromised by application variations.
3. Corrosion Protection – From Design to Final Details
Corrosion prevention starts at the design stage, not just during painting. TLS adds drainage slopes or holes in areas prone to water collection — such as the container base, door frames, and rainwater channels — to reduce moisture buildup. For bolts, locks, and other fittings, we use stainless steel or hot-dip galvanized materials, and then apply touch-up coatings after installation to avoid weak points.
4. Realistic Service Life Expectations
Under normal use and maintenance, TLS containers can maintain their structure and corrosion protection for around 20 years in a C5-M (marine, very high corrosion) environment. This doesn’t mean the container becomes unusable after 20 years — it means corrosion risks remain controlled and the coating still performs during this period. With lower usage or regular maintenance, lifespan can be even longer.
TLS Offshore Containers / TLS Special Containers is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Conclusion
Salt spray corrosion is a fact of life in coastal and offshore environments, but it doesn’t have to shorten your equipment’s life. With precise welding, advanced coating systems, and thoughtful corrosion prevention in design, TLS ensures every container can perform reliably for years, even in the toughest marine conditions.
Keywords:#Offshore Containers,#Salt Spray Corrosion,#Marine Environment Protection,#Welding Quality,#Coating System,#Corrosion Prevention,#Structural Strength,#Zinc-Rich Primer,#Polyurethane Topcoat,#C5-M Corrosion Resistance
