csb-releases-final-report-on-facility-safety-culture-following-a-series-of-sulfuric-acid-releases-at-the-tesoro-martinez-refinery-in-california/

Washington, DC August 11, 2016 – Today the U.S. Chemical Safety Board (CSB) issued a safety alert entitled “CSB Safety Alert: Preventing High Temperature Hydrogen Attack (HTHA)” focused on preventing accidents similar to the fatal 2010 explosion and fire at the Tesoro Refinery in Anacortes, WA that fatally injured 7 workers.

The CSB’s investigation into the catastrophic failure of a forty-year-old heat exchanger at the Tesoro Refinery determined that the fatal explosion and fire was caused by a damage mechanism known as high temperature hydrogen attack, or HTHA, which severely cracked and weakened the carbon steel heat exchanger over time, leading to a rupture. The CSB’s report released in May 2014 concluded that the standard industry uses for determining vulnerability of equipment to HTHA is inadequate.  To address its findings, the CSB made recommendations intended to prevent HTHA to the industry group that issues guidance on HTHA, the American Petroleum Institute (API)…(read more)
Updated: September 1, 2016 — 3:30 pm