She told him about a warehouse in 1987, before UL 2166 existed. A small diesel leak from a tank fitting went unnoticed for two years. The fuel soaked into a gravel floor. One day, a forkliftâs spark ignited the vapor cloud. The explosion killed two people and leveled the building. After that, the NFPA, insurance groups, and UL worked together to create UL 2166.
Elena pointed to the PDF. âUL 2166 requires a â a continuous, liquid-tight, chemically resistant membrane under the tank and the fill area, with raised curbs. If a spill happens, it stays inside a contained basin, not in the buildingâs bones.â ul 2166 pdf
Marcus shrugged. âWeâll wipe it up.â She told him about a warehouse in 1987,
Last week, the local fire marshal had signed off. Today, Marcus was showing off the room to Elena, a consultant his boss reluctantly hired after a close call with a minor electrical fire. One day, a forkliftâs spark ignited the vapor cloud
âWe need to retrofit,â he whispered.
She explained: UL 2166 is the Standard for But itâs not about the tank itself. Itâs about everything around the tank.