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Before a TLS special container is delivered, it undergoes a comprehensive series of tests to guarantee its structural integrity, safety, and functionality. These meticulous inspections ensure that potential issues are identified and resolved early, minimizing risks during operation. Below is an in-depth overview of these essential tests:

1. Welding Test
Purpose:The welding test is critical for ensuring the structural stability of the container. It verifies the quality and strength of all welded joints, detecting defects such as cracks, porosity, or weak connections that might compromise the container’s reliability.
Testing Methods

• Visual Inspection: Examine weld seams for surface defects like unevenness, undercuts, or spatter.
• Non-Destructive Testing (NDT): Use advanced techniques such as ultrasonic, X-ray, or magnetic particle testing to identify internal defects.
• Strength Test: Apply pressure or load to assess the welds' load-bearing capacity.

Operation Stage

• Conduct immediately after completing the welding process.
• Address any defects identified before assembly to avoid further complications or costly rework.

2. Lifting Test
Purpose:The lifting test ensures the container can handle the designed load and additional stresses during lifting and transportation. It evaluates the strength and stability of lifting points and the overall structure.
Testing Methods

• Load Test: Simulate lifting scenarios by applying loads exceeding the rated capacity.
• Lifting Point Check: Verify the strength and integrity of lifting ears and points to meet international standards.
• Dynamic Testing: Assess the container's response to conditions like sudden movements or uneven loads, ensuring stability.

Operation Stage

• Perform this test after completing structural welding and assembly but before applying surface treatments.

3. Watertightness Test
Purpose:The watertightness test is essential to confirm the container’s resistance to water intrusion. This ensures the container can protect its cargo from environmental factors such as rain, snow, or humidity.
Testing Methods

• Rain Test: Use high-pressure water jets or simulate heavy rainfall to check for leaks.
• Seal Check: Focus on critical areas like door seals, welded seams, and joints to ensure they meet water resistance standards.

Operation Stage

• Conduct after installing door seals and completing welding but prior to surface treatments. This stage allows easier identification and repair of any leakage points.

4. Paint Test
Purpose:The paint test ensures the durability and visual quality of the container’s surface coating. It evaluates the paint’s adhesion, resistance to corrosion, and overall appearance under various environmental conditions.
Testing Methods

• Visual Inspection: Check for uniformity in the coating, ensuring it is free of bubbles, cracks, or peeling.
• Adhesion Test: Utilize cross-cut or pull-off methods to verify the paint’s bond to the container surface.
• Film Thickness Measurement: Measure the film thickness of the paint on the surface of the container using an electronic coating thickness gauge or a magnetic coating thickness gauge to determine the quality of the paint.

Operation Stage

• Perform this test after completing the painting process to validate the container’s visual and protective qualities.

Recommended test sequence

• Welding test → watertightness test (preliminary) → lifting test → surface treatment and painting → watertightness test (final)
• After passing all final tests, product acceptance and preparation for delivery.

Conclusion:

Each of these tests plays a vital role in ensuring the quality and reliability of TLS special containers. By addressing potential issues at the appropriate stages of production, manufacturers achieve:

• Enhanced Safety: Mitigate risks of structural failures, safeguarding personnel and cargo.
• Increased Durability: Ensure the container can withstand challenging environments and prolonged use.
• Operational Efficiency: Minimize downtime and repair costs by resolving issues before delivery.
• Compliance with Standards: Guarantee adherence to international quality and safety regulations.

Through these rigorous testing processes, TLS ensures that its special containers meet the highest standards of performance and reliability, providing customers with products they can trust for their most demanding applications.
 

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.
 
More details,please check below link:
https://www.tls-containers.com/tls-blog/category/container-test
 
 
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In industries where durability and safety are paramount, such as offshore drilling, shipping, and heavy manufacturing, structural integrity is non-negotiable. One critical method to ensure equipment resilience under extreme conditions is the Vertical Impact Test. This rigorous testing procedure plays a vital role in assessing how containers, equipment, and materials withstand sudden shocks and vertical forces. Let’s explore why the Vertical Impact Test is essential, how it’s conducted, and its benefits in various industries.
 
What is a Vertical Impact Test?
A Vertical Impact Test, sometimes referred to as a drop test, simulates real-life conditions where equipment or containers may experience sudden drops or impacts. During this test, a piece of equipment or container is dropped from a predetermined height to assess its resistance to vertical impacts. The goal is to evaluate its structural integrity, stability, and the ability to protect its contents under impact conditions.
 
How the Vertical Impact Test is Conducted?
The test involves several key steps:

1. Preparation and Calibration: The item under test is prepared according to industry standards. It’s crucial to ensure that the test setup, including height and weight, meets compliance requirements specific to the industry.
2. Drop Mechanics: In a controlled environment, the item is dropped from a calculated height onto a solid, unyielding surface. The impact surface is often made of steel or concrete to mimic realistic conditions. This height is chosen based on potential scenarios the equipment might face in the field.
3. Data Collection: High-speed cameras and sensors capture the moment of impact, allowing engineers to analyze the forces exerted and how the item deforms or withstands the stress.
4. Post-Test Analysis: The item is inspected for signs of structural compromise, damage to its frame, or cracks in material. The results help engineers make critical design adjustments for enhanced resilience.

 
Benefits of Vertical Impact Testing

• Enhanced Safety: By verifying that equipment can withstand drops, Vertical Impact Testing ensures the safety of personnel working around heavy containers and machinery.
• Reduced Operational Downtime: When equipment is built to withstand impacts, fewer repairs are needed, reducing downtime and maintenance costs.
• Regulatory Compliance: Many industries, especially offshore, mandate rigorous testing to meet international standards. Vertical Impact Testing helps companies comply with these standards, safeguarding their operations against regulatory fines or sanctions.
• Improved Product Lifespan: The resilience gained from impact-resistant designs extends the life of equipment, reducing replacement frequency and associated costs.

 
Conclusion
For companies in sectors such as offshore, heavy manufacturing, and logistics, ensuring the durability and safety of equipment is essential. The Vertical Impact Test provides a crucial benchmark for testing and enhancing equipment resilience, ultimately contributing to a safer, more reliable operation. Whether protecting delicate electronics, high-value cargo, or vital offshore infrastructure, Vertical Impact Testing remains an invaluable part of modern quality assurance and engineering practices.
 
 
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.
 
 
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The Container Compressive Capacity Test, also referred to as the Vertical Impact Test, is a widely used method for evaluating the safety performance of containers during transportation. This test is specifically designed to determine the compressive capacity of containers when subjected to vertical impact. The following testing criteria are strictly adhered to:

1. The container is loaded with a uniformly distributed load equivalent to its rated weight, exclusive of the spreader, as well as the mass of the empty container along with its attachments, excluding the spreader. The load is then securely fastened.
2. The testing is conducted on a flat concrete floor or any other hard ground, with wooden boards not exceeding a thickness of 50mm allowed to be placed on the ground.
3. The container is tilted and lifted to an angle not less than 5° between the side beams and end beams connected to the lowest corner on the bottom of the container and the ground. The height difference between the lowest and highest corner points on the bottom surface of the container should not exceed 400mm.
4. The lowest corner point of the container with the weakest stiffness is selected as the point of impact during the test.
5. The container's initial impact velocity when touching the ground should not be less than 1m/s, and its lowest corner should be at least 50mm above the ground.
6. Upon completion of the test, the container should not display any significant permanent deformation or damage, while minor repairable open welds and deformations are permitted.

TLS Offshore Containers Int. ensures that all of its products are meticulously produced and tested in strict compliance with international standards.

Unlike ordinary dry cargo containers, which are primarily used for land transportation, offshore containers are specialized containers used on offshore oil rigs;  Therefore, there is a well-established set of European standards for their design and manufacture, including DNV 2.7-1 and EN 12079.
Marine containers are mainly used on marine drilling platforms, where the operating environment is demanding and frequent hoisting is required, which places high requirements on container hoisting equipment.
All four corners of the top of the container have a top corner piece structure. The top corner piece structure consists of a standard container top corner piece, a lifting lug, and a reinforcing piece.
The uplifted ears are located on the inner side of the top horn, adjacent to it, and are arranged and fixed to it. The four-point or two-point lifting of a container can be performed by means of a hoist, and therefore there is a higher strength requirement on the hoist itself as well as on the top of the box in which the hoist is mounted. The lifted lug material must have low-temperature shock resistance properties.
The reinforcing piece consists of a bottom plate for the lifting lug, and a coaming plate arranged on three sides of the bottom plate of the lifting lug. The setting of the coaming plate not only strengthens the lifting ear area but also protects the lifting ear.
When lifted, a special sling is used, the shackles are passed through the eye holes and locked firmly, then the sling is lifted through the main ring of the sling.