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Emergency Procedures For Toxic Vapor Release on Tankers or accidental Chemical Spill on Containerships

The procedures mentioned below are guidelines in event of an accidental Toxic Vapor Release on Tankers and for an accidental Chemical Spill on Containerships.

In Case Of Tankers: Raise alarm
If in port, advise terminal
Stop any Cargo Operations and then Shut Tank and Manifold Gate Valves

All crew to muster inside accommodation and close all doors

Stop air conditioning / ventilation to living and working spaces.

(But maintain to operate the Pump Room Exhaust Fans, if applicable)

Notify nearest coast state and other vessels in vicinity

If at sea, Master to alter course, if possible, to blow vapors away from accommodation

Check MSDS for emergency procedures

Crew, wearing SCBA and PPE, go about to isolate source of leak.

In Case Of Container ships:

Raise alarm

Identify the cargo involved in the spill – if it is IMDG cargo, then from corresponding UN number, the specific EmS (“Emergency schedule for Spillage and Fire” in IMDG Supplement) is to be noted.

If not, it can be washed overboard if vessel is not in a special area or less than 12 miles from coast.

Refer to the appropriate EmS Spillage Schedule of spilt cargo for general guidance and measures for spill on deck and under deck.

Consider sealing off ventilation, air conditioning and other openings to living and working spaces.

If necessary, seek expert advice from shore

If the chemical in the spill is harmful to skin or if in least doubt, chemical suit to be worn by persons tackling the spill

If the spill is inside a confined space, SCBA is to be used.

If the cargo is a marine pollutant, it is to be collected onboard and discharged ashore. Any pollution to be reported as per SOPEP.

Any contaminated clothing to be discarded

First aid to be administered if required, as per MFAG

(“Medical First Aid Guide” in IMDG Supplement)





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