Fumigants & application

Methyl Bromide fumigation

Fumigation with use of methyl bromide is permitted only when a ship is in the confines of a port (either at anchor or alongside), once crew members have disembarked. After methyl bromide fumigation at load port ventilation should be done prior to sail.

Fumigation Certificate for methyl bromide fumigation is issued by Fumigation Company that can state insects-free and gas-free condition of cargo as fumigation is complete before sailing.

Phosphine (hydrogen phosphide) fumigation

Phosphine is approved for in-ship in-transit fumigation, which is done during voyage with the purpose to prevent from idle time of ships. Unlike for methyl bromide fumigation in case of fumigation with use of phosphine Certificate of In-Transit Fumigation is issued, where insects-free and gas-free condition of goods cannot be certified. This certificate indicates only initial data of fumigation, such as dosage applied and required exposure time, as the progress of fumigation has only begun.

Along with Certificate of in-transit Fumigation clear written instructions must be given to the master of the ship, to the receiver of the cargo and to the authorities at the discharging port as to how any powdery residues are to be disposed of. Today the members of IMFO group are working on a common set of documents for in-transit fumigation. This is being done to comply with the objective of standardization followed by IMFO.

Our customers may feel confident that wherever fumigation is performed by IMFO members the same high standards of safety and compliance with international regulations are followed in strict adherence.

parameter of successful fumigation

Acceptable fumigant application method is the utmost important parameter of successful fumigation. The classic fumigation methods are:

Surface treatments, where fumigants are placed on the exposed cargo surface Subsurface treatments, where fumigants are applied into cargo mass, in such ways as:

  • Trenched-in
  • Short Probe
  • Long Probe
  • Long Probe/Short Probe combination
  • Tubing System
  • Recirculation system
  • Recommended application methods by FGIS

    The following table recommends specific fumigant application methods for various commodity and fumigant exposure time.
    • commodity depth
      exposure time
    • 6m
      9 days
    • 6m-12m
      15 days
    • 12m-20m
      not recommended
    • 20m and +
      not recommended
    • commodity depth
      exposure time
    • 6m
      8 days
    • 6m-12m
      15 days
    • 12m-20m
      18 days
    • 20m and +
      not recommended
    • commodity depth
      exposure time
    • 0m -12m
      10 days
    • 12m and +
      15 days
    • commodity depth
      exposure time
    • 6m
      4 days
    • 6m-12m
      7 days
    • 12m-20m
      9 days
    • 20m and +
      9 days