From: Dave Salman( Salman.Dave@epamail.epa.gov )
Date: Fri, 19 Sep 2003 14:24:15
I don't know if the correct description is flammable or explosive, but here is a link to a case study from Japan which characterizes the incident as an explosion.
or http://www.jaish.gr.jp/sai_s_shsi/1055 if you prefer reading the original version in Japanese.
These are from the Japan Int'l Center for Occupational Safety and Health - English language homepage: http://www.jicosh.gr.jp/english/