What is UL 58?

UL 58, also known as the Standard for Steel Underground Tanks for Flammable and Combustible Liquids, is a technical specification developed by Underwriters Laboratories (UL), an independent testing and certification organization. This standard provides guidelines for the design, construction, and performance of steel underground storage tanks used for storing hazardous liquids such as gasoline, diesel, and various chemicals.

Design and Construction Requirements

UL 58 sets forth specific requirements for the design and construction of steel underground tanks. These requirements include the type of materials that should be used, minimum thicknesses of various components, welding techniques, corrosion protection measures, and proper installation methods. The standard ensures that tanks are structurally sound, can withstand external forces such as soil pressure and traffic loads, and will maintain their integrity throughout their intended service life.

Performance Testing and Compliance

In order to comply with UL 58, manufacturers must subject their tanks to various performance tests. These tests assess the tank's ability to resist leakage, withstand hydrostatic pressure, and endure environmental factors such as temperature changes and exposure to corrosive substances. Upon passing these tests, tanks receive UL certification, indicating that they meet the stringent safety and quality standards set by UL.

Importance of UL 58

The regulations established by UL 58 play a crucial role in ensuring the safety and reliability of underground storage tanks for flammable and combustible liquids. By adhering to this standard, manufacturers can minimize the risk of leaks, spills, and other potentially hazardous incidents. Additionally, compliance with UL 58 helps to enhance industry credibility, instilling confidence in customers and regulatory agencies regarding the quality and durability of these tanks. Ultimately, UL 58 contributes to protecting public safety and safeguarding our environment.