- Israel hits symbols of Hamas rule; scores killed
- Mississippi abortion law can’t be enforced
- Teacher who survived Sandy Hook has book deal
- Jury awards Jesse Ventura $1.8M in case vs. ‘American Sniper’ author Chris Kyle
- Middle Eastern firm’s deal to manage U.S. cargo port raises security concerns
- Bob McDonnell’s defense: Lonely wife developed ‘crush’ on CEO
- Chinese hackers stole ‘huge quantities’ of sensitive data on Israel’s Iron Dome
- House Republicans unveil bill to speed deportations of border children
- Californians protest middle school for hiring white man to teach cultural studies
- Killer’s sentencing overturned because mother couldn’t find seat in courtroom
Board releases final report on Tesoro explosion
Question of the Day
ANACORTES, Wash. (AP) - The U.S. Chemical Safety Board has released its final report on the April 2010 explosion that killed seven workers at the Tesoro refinery in Anacortes.
The report was approved Thursday night at a meeting at Anacortes High School, The Skagit Valley Herald reported (http://www.goskagit.com/ ).
It blames the facility’s safety culture, industry standards and state and federal oversight for the catastrophic rupture of a heat exchanger at the refinery.
The federal agency is calling for more conservative standards for the use of carbon steel and calls on the state of Washington to adopt more rigorous safety management standards.
The explosion was caused by what is called a High Temperature Hydrogen Attack that severely cracked and weakened carbon steel tubing leading to a rupture.
A draft report detailing investigation findings and recommendations was released by the board in January.
After receiving input from the United Steelworkers, the American Petroleum Institute, the Western States Petroleum Association, American Fuel and Petrochemical Manufacturers and others in industry operations and regulation, the board made a few substantial revisions to the report in its final form.
Nelson Curves are industry guidance documents used to predict and manage High Temperature Hydrogen Attack damage based on the heat and pressure a material is exposed to.
The final report recommended establishing a much more conservative Nelson Curve for carbon steel, prohibiting the use of the material in processes that operate in temperatures above 400 degrees Fahrenheit and 50 pounds per square inch of pressure.
The final version also changed recommendations made to the state of Washington.
Information from: Skagit Valley Herald, http://www.skagitvalleyherald.com
TWT Video Picks
- Boehner rules out impeachment: 'Scam started by Democrats'
- Obama thanks Muslims for 'building the very fabric of our nation'
- Obama's brother wears Hamas scarf bearing anti-Israel slogans in photo
- Obama: 'Not a new Cold War,' but new Russia sanctions announced
- Smugglers, rainstorm combine to poke holes in border fence
- Federal judge grants 90-day stay in D.C. gun case
- PHILLIPS: Once-in-a-century stupidity
- D.C. seeks to stay judge's order allowing gun owners to carry in public
- Illegal immigrants demand representation in White House meetings
- PRUDEN: When the hangman botches the job
Obama's biggest White House 'fails'
Celebrities turned politicians
Athletes turned actors
20 gadgets that changed the world