PRESSURE POINTS

摘要

THE US NATIONAL Transportation Safety Board (NTSB) has issued five recommendations as a result of its investigation into a chlorine release incident involving a rail tank car at the Axiall Corp Natrium plant in New Martinsville, West Virginia in August 2016. The leak happened shortly after a tank car had been loaded with 178,400 Ib (80,920 kg] liquefied compressed chlorine; the tank sustained a 42-inch (107-cm) crack in its shell, releasing the entire load over the course of 2.5 hours. A large vapour cloud migrated south along the Ohio River valley, resulting in inhalation injuries.