Disposal of flammable substances with ignition sources

  • Safety Flash
  • Published on 16 January 2015
  • Generated on 17 August 2025
  • IMCA SF 01/15
  • 2 minute read

A Member has reported an environmental incident in which flammable substances were disposed of from a vessel in the same bags as potential ignition sources. 

Following a port call by the vessel, a large amount of waste was offloaded alongside. The waste disposal contractor were advised by the vessel crew that they were offloading a number of hazardous substances including, aerosols, hydrocarbons, oily rags, oil filters and paint thinners. The waste disposal contractor was informed that the vessel crew would separate the special waste, in particular separate the flammable paint thinners into a metal drum to avoid contact with the other materials which provided a potential ignition source.

However, once the waste was lifted off the vessel and transported back to the yard of the waste disposal contractor, it was clear that vessel crew had in fact placed all the waste into black bags and had not segregated the special waste. As the bags were not transparent, a chemist was obliged to open it (which they should not have had to do) in order to identify and separate the flammable paint thinners from the other ignition sources.

Findings

Our Member’s investigation noted the following:

  • The vessel crew had not followed their Garbage Management Plan and as a result placed a number of their colleagues and also waste disposal contractor personnel at significant risk of exposure to a fire by placing flammable paint thinners in the same bag as ignition sources such as oily rags and other hydrocarbons.

  • There was poor communication about the on-board waste procedure between the various departments.

  • The vessel also incurred an extra cost as a result of the disposal company having to segregate the hazardous waste.

Action

Our Member took action to ensure that:

  • All personnel are aware of the dangers of storing/disposing of flammable substances with ignition sources.

  • Clear plastic bags are used on board for all waste bins.

  • Bags containing hazardous substances for disposal are clearly labelled to indicate contents.

  • Flammable substances are not being stored/disposed with ignition sources; crew should be vigilant of this fact, especially when disposing and storing hazardous substances.

  • Vessel management delivered a presentation to the crew on ensuring proper waste segregation on-board.

Latest Safety Flashes:

Brazil: diver permanently disabled after decompression illness

Conviction of diving company upheld as work accident suffered by a diver who lost strength in his upper limbs and the ability to move, requiring permanent use of a wheelchair.

Read more
Diver reports unwell post-dive: non-decompression illness

A diver experienced a dizzy spell about one hour after completing a diving operation

Read more
Shore-side crane boom collides with vessel mast

During shipyard lifting operations, the boom of a dock crane made contact with the vessel mast.

Read more
Injury sustained while operating steel lifting magnet

While preparing to transfer steel plates using a steel lifting magnet, a crew person was injured.

Read more
Head Injury in Engine Room

A Chief Engineer sustained a head laceration injury.

Read more

IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of the entire offshore industry.

The effectiveness of the IMCA Safety Flash system depends on the industry sharing information and so avoiding repeat incidents. Incidents are classified according to IOGP's Life Saving Rules.

All information is anonymised or sanitised, as appropriate, and warnings for graphic content included where possible.

IMCA makes every effort to ensure both the accuracy and reliability of the information shared, but is not be liable for any guidance and/or recommendation and/or statement herein contained.

The information contained in this document does not fulfil or replace any individual's or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.

Share your safety incidents with IMCA online. Sign-up to receive Safety Flashes straight to your email.