Technical: In 2004 in-tank explosions resulted in the total loss of two chemical tankers. The requirements for inerting of cargo tanks did not apply to these vessels.
In recent years there have been a significant number of similar explosions and fires on board tankers. The majority of these explosions appear to take place in connection with tank washing and gas-freeing operations. As a consequence of the accidents in 2004, the inert gas requirements for oil and chemical tankers have now been amended. Read the full article in the PDF: