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Fire Test of an UN-T75 Portable Tank on a Flat Car Phase II

Document Series
Research Results
Federal Railroad Administration
Report Number
RR 23-01
Subject Hazardous Materials
Liquid natural gas, LNG, UN-T75 tank, International Organization for Standardization, ISO, tank, fire, pressure relief valve, PRV, hazardous materials, HazMat

The Federal Railroad Administration (FRA) contracted Southwest Research Institute (SwRI) to evaluate the fire performance of an alternative fuel storage tank using analytical methods and fire testing. The objective of this project was to expose an LNG rail storage tank to fire conditions and observe the performance of the pressure relief valve (PRV) system. The tank was filled with liquid natural gas (LNG). SwRl performed the full scale UN-T75 portable tank tire test on June 29, 2022.

Last updated: Friday, January 6, 2023