What is UL 1746?

UL 1746 is a technical standard that specifies requirements and test methods for underground storage tanks (USTs). USTs are commonly used to store substances such as fuel, oil, or chemicals underground, and they play a crucial role in many industries.

Why is UL 1746 important?

The purpose of UL 1746 is to ensure the safety and integrity of USTs, as well as to prevent potential environmental hazards. Compliance with this standard is often required by regulatory agencies and can help organizations avoid costly fines and penalties.

Main requirements of UL 1746

UL 1746 covers various aspects of UST design, construction, installation, and maintenance. Here are some of the main requirements outlined in the standard:

Corrosion Resistance: The tank material should be resistant to corrosion, ensuring its long-term durability.

Leak Detection: USTs must have a reliable system in place to detect leaks promptly and effectively.

Overfill Prevention: Measures should be implemented to prevent overfilling of the tank, which can lead to spills and contamination.

Ventilation: Adequate ventilation is necessary to prevent the accumulation of hazardous vapors.

Secondary Containment: USTs must have a secondary containment system to contain leaks or spills.

Testing and certification process

In order to comply with UL 1746, USTs need to undergo rigorous testing by accredited laboratories. These tests evaluate factors such as the tank's ability to withstand external forces, resistance to corrosion, leak detection capabilities, and compliance with installation requirements.

If a tank meets all the necessary criteria, it can receive UL certification. This certification demonstrates that the UST complies with the safety standards set forth by UL 1746.

In conclusion

UL 1746 is an essential technical standard for ensuring the safety and environmental protection of underground storage tanks. By complying with this standard, organizations can minimize the risk of leaks, spills, and contamination, while also avoiding legal and financial consequences. It is crucial to work with reputable manufacturers and installers who understand and follow UL 1746 requirements to ensure the longevity and reliability of USTs.