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Do not tape across middle of the packet. Do not exceed label
dosage. Plates and packets must never be subdivided to reduce
the amount of phosphine. Plates must never touch each other.
Important
A relative humidity of at least 40% and an air temperature above 40 °F will
produce satisfactory results for a phosphine fumigation.
Chemical Treatments Fumigants • Phosphine • Tarpaulin (NAP Chamber or Container)
Concentration Readings
10/2002-04 Treatment Manual 2-10-9
PPQ
◆ Take prepared boards into the container and secure one board in
each end, bag side up to the load. If load is covered with paper,
secure cardboard to paper. As an alternative, boards may be
securely nailed to the wall.
◆ If possible, drape remaining doorway with polyethylene film
before door is closed. Secure edges to door jams and floor. Close
door and secure. If doorway is draped with polyethylene, it may
not be necessary to seal the door from the outside. If doorway is
not draped, seal all cracks, openings, and joints with masking
tape and/or caulking compound from outside.
◆ Placard all doors of the container with the appropriate warnings.
Concentration Readings
The officer will take readings at the time indicated in the particular
fumigation schedule using sampling tubes appropriate for the
phosphine levels to be measured, or by using an electrochemical
device approved by the Center for Plant Health & Technology (CPHST)
in Raleigh, North Carolina.
Refer to the section for tarpaulin fumigation with methyl bromide for
additional information on the following:
◆ selected fumigation sites
◆ placing gas sampling tubes
◆ sealing tarpaulins
◆ taking concentration readings
◆ securing fumigation areas
Chemical Treatments Fumigants • Phosphine • Tarpaulin (NAP Chamber or Container)
Concentration Readings
2-10-10 Treatment Manual 10/2002-04
PPQ
10/2002-04 Treatment Manual 2-11-1
PPQ
Treatment Manual
2 Chemical Treatments 11
Aerosols and Micronized Dusts
Contents
Introduction page-2-11-1
Aerosols page-2-11-1
Micronized Dusts page-2-11-2
Cartridges page-2-11-2
Equipment page-2-11-2
Methods and Procedures for Application page-2-11-2
Treatment of Passenger Compartments and Cargo Aircraft page-2-11-2
Treatment of Separate Cargo Compartments and Containerized or Palletized
Cargo page-2-11-3
Precautions for Both Aerosols and Micronized Dusts page-2-11-4
Precautions in Use of CO2 Fire Extinguishers page-2-11-4
Introduction
This section includes information about aerosols and micronized
dusts. Use this information with the T409 series of treatments, and
with Table 5-5-1: Determine the Amount of Aerosol, to conduct a safe
and effective aerosol disinfestation.
Aerosols
When applying an aerosol, the dispenser nozzle(s) should be directed
upward at an angle of 45 ° and moved from side to side in order to get
uniform distribution of the material. During discharge, the dispensing
valve should be depressed fully, and the nozzle held 45 cm (18 inches)
or more from all surfaces. Devices are available for depressing the
valve and expending all the aerosol in the can or a trigger mechanism
for ease in dispensing the material. Aerosol dosages are based on a
dispensing rate of 1 g per second, unless otherwise noted. The
applicator should use a dust mask, or face mask (with filter) for
personal protection. The PPQ quarantine dosage shall not be applied
in the presence of passengers, crew, or animals, except as noted in the
schedules.
Chemical Treatments Aerosols and Micronized Dusts
Micronized Dusts
2-11-2 Treatment Manual 10/2002-04
PPQ
Micronized Dusts
Both domestic and foreign quarantine programs use dust to kill pests
such as the Japanese beetle and pests of foreign origin. This method
may be used in treating aircraft, railroad cars, trucks, and palletized
or containerized cargo. Specific instructions for domestic quarantine
use are included in Program Manuals.
Cartridges
Prefilled cartridges are used (available as follows: green–1 g; yellow–3
g; red–5 g; and blue–13 g). Combinations of these sizes will give the
correct amount and the dust may be combined into a single cartridge
to reduce the number of individual “shots” required. Care must be
taken in combining the material to insure no exposure to the dust
occurs through dermal contact or inhalation.
Store filled pesticide cartridges in a cool, dry, protected location.
Damaged cartridges and empty cartridges should be disposed of by
　
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