ABSTRACT
Steel tanks fabricated in the 1950s and 1960s are not much different from the tanks of today. Yes, it's true that advancements in corrosion protection and secondary containment have remarkably changed products built to Underwriters Laboratories UL 58 standard for underground storage tanks (USTs). And it's true that extraordinary innovations in aboveground storage tank (AST) design have forever altered the concept of what a UL 142 tank would look like.
