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basis, commodities may be fumigated within the structure of a ship if Methods
Development first approves the fumigation. For approval, call the Center for
Plant Health Science & Technology (CPHST) (tel: 919-513-2496)
1 T/C unit must be calibrated annually by the Center for Plant Health Science and Technology (CPHST) in
Raleigh, North Carolina. If requested, CPHST will calibrate a commercial fumigator’s T/C unit.
Chemical Treatments Fumigants • Methyl Bromide • Ship Fumigation
Taking Safety Measures When Fumigating Ships
10/2002-04 Treatment Manual 2-6-3
PPQ
◆ Fans (circulation, exhaust, and introduction)
◆ Framework and supports
◆ Gas sampling tubes (leads)
◆ Gas supply line
◆ Heat supply
◆ Insecticides and spray equipment
◆ Methyl bromide
◆ Padding
◆ Portable generator as backup unit to operate T/C unit, auxiliary
pump, and lights
◆ Sand or water snakes
◆ Scales or dispensers
◆ SCBA or supplied air respirator
◆ Tape
◆ Tarpaulin and supports
◆ Thermal conductivity unit
◆ Volatilizer
◆ Warning signs
PPQ officer and fumigator should be prepared to use auxiliary power if
shore power is not available as most ships’ power is 220 volts.
Taking Safety Measures When Fumigating Ships
The most important consideration when fumigating ships is the
protection of human life. The commercial fumigator has the following
safety responsibilities when fumigating ships:
◆ Observe all safety precautions while fumigating
◆ Prevent access of unauthorized personnel, including the ship’s
crew, to the fumigated area
◆ Conduct fumigation properly to result in an effective treatment
◆ Evacuate gas from ship and aerate when fumigation is completed
◆ Test, with a gas detector, all areas aboard ship to ensure freedom
from MB before allowing crew members access to the ship
The commercial fumigator must abide by the following guidelines
when fumigating ships:
Chemical Treatments Fumigants • Methyl Bromide • Ship Fumigation
Preparing to Fumigate
2-6-4 Treatment Manual 10/2002-04
PPQ
◆ Have a representative present throughout the entire fumigation.
The representative must be familiar with directions for using the
fumigant, warnings, antidotes, etc., shown on the label, on the
gas cylinder, and contained in the manufacturer’s application
manual.
◆ Have adequate first-aid equipment, SCBA, and other safety
equipment available
◆ Have all areas of the ship tested with a gas detector prior to crew
re-entry. Pay particular attention to all fumigated areas, crew
quarters, and the engine rooms
◆ Provide for immediate contact with the responsible ship’s officer
to provide information and access to areas of the ship which may
be needed to assure a safe fumigation
Preparing to Fumigate
Step 1—Meeting With Ship’s Captain and Agent
When planning a ship fumigation, meet with the ship’s captain, agent,
and the fumigation company representative to discuss the conditions
of the fumigation. If cargo is present in an area about to be fumigated,
determine if any materials might be adversely affected by the fumigant
(see Methyl Bromide—Properties for a list of commodities adversely
affected by MB). Notify the ship’s agent of possible effects and if
conditions permit, allow removal of the material from the hold for an
alternate treatment.
Discuss plans for removing all crew from the ship. It is the
responsibility of the commercial fumigator to comply with all label
requirements, and with State, local, and U.S. Coast Guard regulations
(see Coast Guard Regulations in Appendix B) concerning shipboard
fumigation.
Step 2—Selecting a Treatment Schedule
Refer to treatment schedule T402 (SHIPS) for the correct treatment.
Select a treatment schedule based on the plant pest and commodity to
be fumigated. Consider all the commodities present in the area to be
fumigated when determining the best treatment available. In the case
of khapra beetle fumigation, determine if finely milled products
(example—flour) will be fumigated. If finely milled products are to be
fumigated, give the captain the option to use the 12 hour schedule.
Have the finely milled products destroyed either by incineration or by
sterilization after the fumigation has been completed. If the captain
elects not to remove and destroy the finely milled products, then use
the 24 hour treatment schedule.
Chemical Treatments Fumigants • Methyl Bromide • Ship Fumigation
Preparing to Fumigate
10/2002-04 Treatment Manual 2-6-5
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