EEMUA 180:2007 PDF Download

EEMUA 180:2007 standard, also known as the Guide for Designers and Users of Frangible Roof Joints for Fixed Roof Storage Tanks, offers guidance to designers and users of vertical fixed roof storage tanks. The purpose of this standard is to provide practical steps that can be taken in the design, operation, and maintenance of these tanks in order to make the roof-to-shell joint more vulnerable to failure compared to the shell-to-bottom joint. This ensures that in the event of rapid increases in vapor pressure and tank failure, the tank's contents are retained.

The standard emphasizes the importance of having relatively weak roof-to-shell joints, known as frangible roof joints, as a safety measure. It provides guidance on the design and implementation of these joints to ensure their functionality. Furthermore, the standard addresses tanks that were built before 1985 when frangibility was not a design requirement and offers guidance on how to determine the actual frangibility of these older tanks.