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                                RESTRICTED USE PESTICIDE
DUE TO ACUTE TOXICITY
For retail sale to and use only by Certified Applicators or person
under their direct supervision, and only for those uses covered by the
Certified Applicator鈥? certification
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DIRECTIONS FOR USE OF THE PRODUCT

METH-O-GAS 庐 100
COMMODITY FUMIGANT
EPA REGISTRATION NUMBER

5785-11
DANGER PELIGRO

Si Usted no entiende la etiqueta, busque a alguien para que se la explique a Usted en detalle.
(If you do not understand the label, find someone to explain it to you in detail.)

READ THIS BOOKLET AND ENTIRE LABEL CAREFULLY PRIOR TO
USE. USE THIS PRODUCT ACCORDING TO LABEL INSTRUCTIONS.




GreatCorporation
Lakes
Chemical
P.O. Box 2200, West Lafayette, Indiana 47906

庐Registered trademark of Great Lakes Chemical Corporation.
漏 1997 Great Lakes Chemical Corporation

MOG100-10 REV GLK 159E
TABLE OF CONTENTS

Section Number

Statement of Warranty and Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Precautionary Statements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Aeration and Reentry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Statement of Practical Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Spill and Leak Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Storage, Handling and Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Directions for Use
Commodity, Food, and Feed Fumigation Directions . . . . . . . , . . . . . . . . . . . . . . . . . . . .7
A. Chamber and Vault Fumigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
B. Vacuum Chamber Fumigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
C. Railroad Car, Truck, Van, Trailer or Air and Sea
Container Trailer Fumigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
D. Tarpaulin Fumigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
E. Warehouse, Grain Elevator, Food Processing
Plant, Restaurant, and Other Structures Containing Commodities . . . . . . . . 12
F. Shipboard, In Transit Ship or Shiphold Fumigation . . . . . . . . . . . . . . . . . . . 13

Table I. Application Summary for Stored Products Pests
Infesting Raw Agricultural Commodities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table II. Application Summary for Processed Food . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table Ill. Application Summary for Structures Containing Raw or
Processed Commodities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Table IV. Application Summary for Non-Food Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17




Page 2
STATEMENT OF WARRANTY AND LIABILITY
Seller warrants that this product complies with the specifications expressed in this label. SELLER MAKES NO
OTHER WARRANTIES; AND DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FOR THE INTENDED
PURPOSE. Seller鈥? liability for default, breach, or failure under this label shall be limited to the amount of the
s
purchase price. Seller shall have no liability for consequential damages.
Many pesticidal chemicals are poisonous and may leave a toxic residue on the plants to which they are
applied. The U.S. Environmental Protection Agency has established maximum amounts of such pesticidal
chemicals that may remain on raw agricultural products, and it is the user鈥? responsibility to see that there is
s
no residue on such crops in excess of these amounts. The 鈥? Directions for Use鈥? are based on the best
available information, and if followed carefully should not leave excessive residues. However, Great Lakes
Chemical Corporation assumes no responsibility as to their accuracy nor for any loss due to excessive
residues.

PRECAUTIONARY STATEMENTS
HAZARDS TO HUMANS
DANGER
Extremely hazardous liquid and vapor under pressure. Liquid or vapor can cause serious skin or eye injury
which may have a delayed onset. Do not get liquid on skin, in eyes or on clothing.
Do not breathe vapor. Inhalation may be fatal or cause serious acute illness or delayed lung or nervous
system injury. Methyl bromide vapor is odorless and nonirritating to skin and eyes during exposure.
Exposure to toxic levels may occur without warning or detection by the user.
AIR CONCENTRATION LEVEL
The acceptable air concentration level for persons exposed to methyl bromide is 5 ppm (20 mg/m3). The air
concentration level is measured by a direct reading detection device, such as a Matheson-Kitagawa,
Draeger, or Sensidyne.
AERATION AND REENTRY
After fumigation, treated areas must be aerated until the level of methyl bromide is 5 ppm or less. Do not
allow entry into the treated area by any person before this time, unless protective clothing and a respiratory
protection device (NIOSH/MSHA approved self-contained breathing apparatus (SCBA) or combination
air-supplied/SCBA respirator) is worn.




Page 3
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Applicators and other handlers must wear:
Loose-fitting or well ventilated long-sleeved shirt and long pants.
Shoes and socks.
Full-face shield or safety glasses with brow and temple shields (Do NOT wear goggles).
When the acceptable air concentration level is above 5 ppm and a respirator
is required, protect the eyes by wearing a full-face respirator.
No respirator is required if the air concentration level of methyl bromide in the working area is measured to be
5 ppm or less.
A respirator is required if the acceptable air concentration level of 5 ppm is exceeded at any time. The
respirator must be one of the following types: (a) a supplied-air respirator (MSHA/NIOSH approval number
prefix TC-19C) OR (b) a self-contained breathing apparatus (SCBA) (MSHA/ NIOSH approval number prefix
TC-13F).
WORK SAFETY REQUIREMENTS
1. Do not wear jewelry, gloves, goggles, tight clothing, rubber protective clothing, or rubber boots when
handling. Methyl bromide is heavier than air and can be trapped inside clothing and cause skin injury.
2. If liquid fumigant splashes or spills on clothing or shoes, remove them at once.
3. Immediately after contamination remove outer clothing, shoes, and socks and do not reuse until
thoroughly aerated or ventilated. Keep such clothing and shoes outdoors until thoroughly aerated. Then
follow the PPE manufacturers instructions for cleaning/ maintaining PPE. If there are no such instructions
for washables, use detergent and hot water. Keep and wash PPE and work clothing separately from
other laundry.
4. Discard clothing, shoes and other absorbent materials that have been drenched or heavily contaminated
with this product. Do not reuse them.
5. Follow PPE manufacturer鈥? instructions for cleaning/maintaining protective eyewear and respirators.
s


USER SAFETY RECOMMENDATIONS
Users should:
鈥? Wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet.
鈥? Remove clothing immediately if pesticide gets inside. Then wash thoroughly and put
on clean clothing.
鈥? Remove PPE immediately after handling this product. As soon as possible, wash
thoroughly and change into clean clothing.




Page 4
STATEMENT OF PRACTICAL TREATMENT
In all cases of overexposure, get medical attention immediately. Take person to a doctor or emergency
treatment facility.
IF INHALED: Remove exposed person from contaminated area. Keep warm. Make sure person can
breathe freely. If breathing has stopped, apply artificial respiration. If not unconscious, rinse
mouth out with water. Do not give anything by mouth to an unconscious person.
IF ON SKIN: Immediately remove contaminated clothing, shoes, and any other item on skin, Wash
contaminated skin area thoroughly with soap and water.
IF IN EYES: Hold eyelids open and flush with a steady, gentle stream of water for at least 15 minutes.
Note to Physician. Early symptoms of overexposure are dizziness, headache, nausea and vomiting,
weakness and collapse. Lung edema may develop in 2 to 48 hours after exposure, accompanied by cardiac
irregularities; these effects are the usual cause of death. Repeated overexposures can result in blurred
vision, staggering gait and mental imbalance, with probable recovery after a period of no exposure. Blood
bromide levels suggest the occurrence, but not the degree, of exposure. Treatment is symptomatic.
ENVIRONMENTAL HAZARDS
This product is toxic to fish and wildlife. Keep out of lakes, streams and ponds. Do not contaminate water by
cleaning of equipment or disposal of wastes.
SPILL AND LEAK PROCEDURES.
Evacuate immediate area of spill or leak. Use a NIOSH/MSHA approved self-contained breathing apparatus
(SCBA) or combination air-supplied/SCBA respirator for entry into affected area to correct problem. Allow
spill to evaporate. Do not permit entry into spill area by persons without appropriate respiratory protection
until concentration of methyl bromide is determined to be 5 ppm or less, Remove leaking containers to an
isolated area and cover with a polyethylene sheeting of 4 mil or greater thickness. Seal by placing the outside
edges of sheeting in a trench and cover with soil. Tamp soil down so edges will not pull loose. Discharge the
contents under the sheeting and do not disturb for at least 48 hours.
Contaminated soil, water, and other cleanup debris is a toxic hazardous waste. Report spill to the National
Response Center (800-424-8802) if the reportable quantity of 1000 pounds is exceeded.




Page 5
PHYSICAL AND CHEMICAL HAZARDS
Contents under pressure. Do not use or store near heat or open flame. In fires fueled by other materials,
Meth-O-Gas 庐 100 may liberate hazardous gases. Meth-O-Gas 庐 100, used as a gaseous fumigant, is
generally non-corrosive under dry conditions. However, the use of liquid methyl bromide with aluminum,
magnesium, zinc and alkali metals may result in the liberation of toxic gases, and possible fire and explosion.
In addition, the use of liquid methyl bromide may cause severe corrosion of containers and equipment made
of these metals.

DIRECTIONS FOR USE
It is a violation of Federal law to use this product
in a manner inconsistent with its labeling.
This fumigant is a highly hazardous material and must be used only by individuals trained in its proper use.
Before using, you must read and obey all label precautions and directions.
All persons working with this fumigant must be knowledgeable about the hazards, and trained in the use of
required respiratory protection equipment and detector devices, emergency procedures, and proper use of
the fumigant.

STORAGE, HANDLING AND DISPOSAL
Storage and Handling of Cylinders. Store in a secure manner either outdoors under ambient conditions or
indoors in a well-ventilated area. Post as a pesticide storage area.
Do not contaminate water, food, or feed by storage. Store cylinders upright, secured to prevent tipping, as
allowed by design.
Cylinders should not be subjected to rough handling or mechanical shock such as dropping, bumping,
dragging, or sliding. Do not use rope slings, hooks, tongs or similar devices to unload cylinders. Transport
cylinders using hand truck, fork truck or other device to which the cylinder can be firmly secured. Do not
remove valve protection bonnet and safety cap until immediately before use. Replace safety cap and valve
protection bonnet when cylinder is not in use.
When cylinder is empty, close valve, screw safety cap on to valve outlet, and replace protection bonnet
before returning. Only the registrant, or his designee, is authorized to refill cylinders. Do not use cylinders for
any other purpose.
Storage and Handling of Cans. Store 1 and 1.5 pound cans indoors in a locked, dry, well-ventilated area.
Do not attempt to store partially emptied cans. Keep empty cans in a well-ventilated location for at least 12
hours before disposal. Do not reuse empty cans.




Page 6
Disposal of Pesticide. Pesticide wastes are toxic. Improper disposal of excess pesticide is a violation of
Federal law. If these wastes cannot be disposed of by use according to label instructions, contact your State
Pesticide or Environmental Control Agency, or the Hazardous Waste representative at the nearest EPA
Regional Office for guidance.
Disposal of Cylinders. To insure proper return of empty or partial cylinders, make return shipping
arrangements with the seller of the product.
Disposal of Cans. Before disposal, empty the can by using the product according to the label. Keep empty
cans in a well-ventilated location for at least 12 hours before disposal. Cans can be recycled in some
recycling centers. Otherwise, dispose of empty cans in a sanitary landfill, or by other procedures approved
by state and local authorities.

COMMODITY, FOOD, AND FEED FUMIGATION DIRECTIONS.
THE FOLLOWING PRECAUTIONARY PROCEDURES MUST BE FOLLOWED FOR ALL USES.
When used for fumigation of enclosed spaces (e.g., warehouses, grain bins or elevators, vaults, chambers,
trucks, vans, railroad cars, ships, and other transport vehicles, and tarpaulin-covered commodities), two
persons trained in the use of this product must be present during introduction of the fumigant, initiation of
aeration, and after aeration when testing for reentry. Two persons do not need to be present if application,
aeration, monitoring and/or testing is conducted remotely (outside the area being fumigated).
Do not fumigate with this product when the space, commodity, or structure (excluding dwellings) to be
fumigated is below 40掳F for control of insects or below 20掳F for control of rodents and other warm-blooded
pests.
If monitoring indicates concentration of fumigant is insufficient to be effective for the target pest, additional
fumigant may be added as required; but, concentration is not to exceed prescribed rates of application.
When fumigating tanks, silos, etc., of stored bulk flour, empty or draw down flour to less than one meter deep.
Do not introduce liquid methyl bromide into flour storages. Set up fans or air circulation to avoid localized
high concentrations of methyl bromide when shooting gaseous methyl bromide into the storage. Do not
overdose flour storages. It is recommended that the fumigant be applied outside flour storages that are
inside buildings and allowed to drift in through open hatches.
PLACARDING OF FUMIGATED AREAS
The applicator (or supervisor of the application) must placard all entrances to the fumigated area with signs
bearing:
鈥? skull and crossbones symbol.
鈥? "DANGER/PELIGRO,"
鈥⑩?? Area under fumigation, DO NOT ENTER/NO ENTRE,鈥?
鈥⑩?? Methyl Bromide Fumigant in use,鈥?
鈥? the date and time of fumigation, and
鈥? name, address, and telephone number of the applicator.




Page 7
Do not allow entry by unprotected persons into the fumigated area until the signs are removed. Do not
remove warning signs until the fumigated area and the treated commodity are completely aerated. To
determine whether aeration is complete, each fumigated site or vehicle must be tested and shown to contain
5 ppm or less of methyl bromide in the airspace around and, when feasible, in the mass of the commodity. If
5 ppm or less of methyl bromide is detected, the warning sign may be removed. However, if greater than 5
ppm of methyl bromide is detected, the warning signs must be transferred with the commodity to the new
site. Workers who transfer or handle incompletely aerated commodity must be informed and appropriate
measures must be taken (i.e. ventilation or respiratory protection) to prevent exposures from exceeding 5
ppm of methyl bromide.
A. Chamber and Vault Fumigation.
All precautionary procedures as outlined immediately following COMMODITY, FOOD, AND FEED
FUMIGATION DIRECTIONS must be followed.
Load the chamber with the material to be fumigated, close exhaust ports, turn on circulating fan and close
chamber door. Determine the proper rate of application and exposure time from appropriate table.
Introduce the fumigant into the chamber by releasing it into the air stream in front of a blower or fan,
passing it through a vaporizer, or allowing it to evaporate from a shallow pan. All controls should be
outside the chamber.
At the end of the exposure period, aerate by opening the exhaust port, turning on the exhaust fan and
opening the chamber door slightly or an inlet port to permit fresh air to enter. At the end of the aeration
period, check fumigant concentration with a detection device. See Aeration and Reentry Section.
B. Vacuum Chamber Fumigation.
All precautionary procedures as outlined immediately following COMMODITY, FOOD, AND FEED
FUMIGATION DIRECTIONS, must be followed.
Place articles to be fumigated in the steel chamber and draw the vacuum (25-27 inches mercury).
Release fumigant into the chamber (usually through an appropriate heating unit to insure complete non-
destructive vaporization of methyl bromide). See appropriate table for rates of application and exposure
times, At the end of the exposure time, release the vacuum and change the air in the chamber at least two
times. A vacuum of 15 inches mercury should be drawn for this purpose. After purging chamber, check
fumigant concentration with a detection device. See Aeration and Reentry Section.
C. Railroad Car, Truck, Van, Trailer or Air and Sea Container Fumigation.
All precautionary procedures as outlined immediately following COMMODITY, FOOD, AND FEED
FUMIGATION DIRECTIONS, must be followed.
Railroad car should be placed on seldom used trackage or siding so that it will not have to be moved
while under fumigation. Park vehicle or container out of traffic area; if possible on the lee side of a
building to protect from winds. Do not fumigate while strong winds are blowing. Seal the doors,
ventilators and other openings. If vehicle or container can not be adequately sealed, cover with tarpaulin
or Plastic sheeting. See Tarpaulin Fumigation Section.




Page 8
The end(s) of the shooting line(s) should be anchored inside an evaporation pan unless a volatizer is used to
apply gaseous fumigant. Use a fan or blower to aid in even distribution of the fumigant. Always apply
fumigant from outside the vehicle. Place warning signs on doors and as needed to be easily visible. Secure
or lock vehicle or container to ensure it is not moved before aeration. DO NOT FUMIGATE VEHICLES IN
TRANSIT.
Consult appropriate table for specific articles, rates of application and exposure times.
After the appropriate exposure period, open the unit and aerate at least one hour. The vehicle must be
aerated to 5 ppm or less before movement is allowed. The vehicle may then be resealed for shipment. See
Aeration and Reentry Section.
D. Tarpaulin Fumigation.
All precautionary procedures as outlined immediately following COMMODITY, FOOD, AND FEED
FUMIGATION DIRECTIONS, must be followed.
The article or stacked articles should be placed on a concrete floor or other air-tight surface. If the floor or
surface is not air-tight, it may be made so by sealing or covering it with additional tarpaulin or
polyethylene sheeting. Provide a space on top of the stack for a gas expansion dome to facilitate
distribution. Evaporating pans are essential for the volatilization and uniform dispersion of fumigant
except where a vaporizer is used. Shallow pans or basins made of plastic or metal (except aluminum) are
satisfactory for this purpose. Use one evaporator pan for each 1000 cubic feet contained under the tarp.
For delivery of Meth-O-Gas庐 100 from outside the tarpaulin, do not use polyvinyl tubing; polyethylene
tubing is recommended. Anchor one end of each tube into an evaporating pan with tape or a suitable
weight. This ensures that the liquid will be directed into the evaporating pan. Place evaporating pan(s)
with anchored applicator tubing in the center of the expansion dome. Extend the free ends of the
polyethylene tubes outside the area to be covered. Cover and seal the stack with a gas tight tarpaulin or
polyethylene sheeting of 4 mil or greater thickness. Allow a margin of at least two feet at the base of the
stack for sealing. Sweep around the stack to provide a clean surface for sealing the tarpaulin. Seal
tarpaulin to floor by sand and/or water snakes, by taping or by means of moist soil or sand.
Attach each polyethylene tube to a can applicator or cylinder valve outlet and release fumigant. Use a
cylinder dispenser or scale to meter small amounts from cylinders. Special units are available for use of 1
and 1.5 pound cans that combine opener and evaporating pan functions, and are designed to be used
with all parts under the tarpaulin. Fans normally should be used in tarp fumigations to aid in the even
distribution of fumigant. A vaporizer or heat exchanger may be required and is also useful to aid in
application and distribution of the fumigant. Dosage rates and exposure times are shown in Tables I
through IV. At the end of the exposure period, unseal opposite ends of the tarpaulin and allow to aerate
for at least one hour before completely removing the tarp. Check fumigant concentration with a detection
device before allowing unprotected persons to enter the area. See Aeration and Reentry Section.
E. Warehouse, Grain Elevator, Food Processing Plant, Restaurant, And Other Structures Containing
Commodities.
All precautionary procedures as outlined immediately following COMMODITY, FOOD, AND FEED@
FUMIGATION DIRECTIONS, must be followed.
Check with appropriate municipal and county authorities before fumigating to be completely familiar with
local regulations. Ordinances may require watchmen or locks, during fumigation and/or notification of the
nearest fire station.
1. Preparation for Fumigation. Remove or protect the following items from the structure to be
fumigated: 1) all food and feed commodities not included in Tables I or II; 2) medicinals not sealed in
metal or glass; 3) pets (including fish and birds); 4) furs, horsehair articles, and leather goods



Page 9
sensitive to methyl bromide; 5) rubber goods (natural latex); 6) carbonless carbon forms and
blueprints; 7) cinder blocks; 8) articles containing sulfur; 9) seeds, bulbs, and live plants; 10) live
cultures.
Prior to fumigation, extinguish all open flames and turn off all high temperature electrical equipment
including laboratory ovens, pilot lights, gas refrigerators, oil burners, etc. Meth-O-Gas 庐 100 in the
presence of intense heat from such sources may generate some hydrobromic acid which may be
injurious to commodities and equipment.
2. Sealing the Building. The most important part of the fumigation is the preparation and sealing of the
structure. A thorough sealing job is necessary. Avoid fumigating under windy conditions.
Sealing of the building begins with the closing of all external openings to the building. Wrap roof
ventilators, chimneys and other large openings with a tarpaulin or plastic sheet and seal with duct or
other appropriate tape. Screened and small openings may also be sealed with a wide, commercial
duct or masking tape. Cleaning of the surfaces to be taped and the use of commercial spray-on
adhesives will improve sealing.
For masonry or metal structures, seal all cracks and other air leaks with caulking material or tape, and
seal cracks around doors, windows, vents and other openings. Wooden structures and others that
can not be readily sealed may be completely enveloped with an impervious tarpaulin. Seal securely
all seams between tarps and seal the lower edges of the tarp to the ground with moist soil or with sand
or water snakes. To prevent escape of gas through the ground and avoid injury to nearby plants, wet
the soil to a depth of six inches for a distance of one foot outward from the edge of the tarp.
Exterior doors and windows should be tightly sealed and locked. Large exterior doors may require
additional efforts to seal properly. Check for cracks around the eaves, in the floor and roof, and seal
them.
Storage or work areas in a building that are not to be fumigated should be carefully sealed off.
Adjoining buildings sharing a common wall should be cleared of occupants before fumigation. If this
is not feasible, seal with a gas tight tarp or polyethylene sheeting (thickness of 4 ml or greater) to
prevent spread of the fumigant to undesirable areas. In all such cases where the adjoining building is
occupied, it should be checked frequently with a suitable gas detector during fumigation to ensure
the safety of the occupants. Check local regulations for specific requirements.
Doors or hatches on milling machinery should be opened prior to fumigation. These include elevator
boots, conveyor lids, settling chamber doors, dust trunks, and any other openings that will allow
fumigant into the equipment. Inside doors, openings to attics and crawlspaces, cabinets, lockers,
and drawers should also be opened to facilitate treatment and aeration. 鈥? Dead鈥? spouts are
particularly difficult to penetrate and should be opened before the fumigation.
Set up fumigant application equipment and fans as necessary to achieve uniform fumigant
concentrations and to facilitate thorough aeration after the exposure period. The choice of a fan or
fans depends upon fan capability to perform the desired function without jeopardizing the success of
the fumigation. Small battery operated fans may be suitable in very small situations. A fan with tubing
attached may be useful for internal recirculation of the fumigant within a building or space to aid in
reaching and maintaining equalized concentrations. Adequate fans should also be available to
effectively aerate difficult to ventilate situations because of construction or unexpected wind direction
or calm. It may be possible to use heating system fans or other installations already in a building for
improved circulation or distribution of Meth-O-Gas庐 100, as well as aid in ventilation after the
exposure period. All fans used for the fumigation should be running when fumigant is being
introduced, and left running until uniform distribution has been accomplished. Fumigators should
not enter a space or building under fumigation to turn fans off or on.



Page 10
See appropriate table for rate of application and exposure times.
3. Fumigating the Structure. Inside Release. Cylinders should be placed by a team of two people and
the location of each cylinder in the building should be mapped. The cylinders should be arranged so
that the fumigators can walk away from the released gas as they open each subsequent cylinder. It is
recommended that polyethylene sheeting or something functionally similar be used underneath
cylinders and at the point of release to prevent staining or damage to floor surfaces. Narrow cylinders
should be secured to prevent tipping.
Cylinders should be placed within a room for best distribution into all areas. Cylinders should be
placed in a normal upright position and the shipping caps removed. Standpipes or curved pipes
directed up and away from the cylinder can be attached. Polyethylene, nylon or similar tubing,
possibly divided with tees or crosses, or other equipment can also be attached to facilitate distribution
of the gas within the room or space to be fumigated.
Place warning signs or placards on all entrances to the building. Signs and placards should conform
to all local, state, and federal regulations. It is best to inform police, fire and health officials that a
fumigation process is about to begin. Observe the location of the nearest outside telephone for use in
case of an emergency.
Practice or review the shooting procedure so that the operation will be done efficiently and safely.
Respiratory protection equipment should be checked for leaks and other problems before the
鈥減ractice session鈥? While wearing respiratory protection, quickly open and close the cylinder valves
.
to make certain they are in working order and thus avoid delay during the actual release.
Applicators should not be in the building longer than 30 minutes while releasing the gas. If it is
impossible for one team to do it within this time period, additional experienced teams should be used.
Two people should work together while the gas is being released and when entering the structure
during aerating and testing.
Fumigators should always remain in sight of each other from the time they open the first cylinder until
the time they leave the building together. While the fumigant is being released, it is advisable to have
additional people, with respiratory protection equipment ready, waiting outside to assist if necessary.
One member of the team should record the release of the fumigant from each cylinder so that none
are missed. After making sure fumigation area is vacated, immediately lock and seal the last exit. If
guards are used, they should remain on duty during release, exposure, and aeration periods to
prevent unauthorized entry.
4. Fumigating the Structure. Outside Release. Releasing the fumigant from outside the space to be
fumigated is possible in some situations and can minimize applicator exposure to the fumigant.
Prepare the building as outlined previously.
Secure the ends of each 鈥? shooting鈥? line or hose to each point where the fumigant is to be released,
using evaporating pans or plastic sheeting to prevent possible damage to some surfaces. Run each
line to the cylinder(s) or manifold located outside the area to be treated. Connect each line to the
cylinder(s) or manifold.
When fumigating storages of bulk grain or other bulk commodities, such as silos, grain bins, tanks,
etc., the fumigator should plan sealing and fumigant distribution to effectively fumigate all the target
pests contained in the sealed space. The fumigant can be applied in several locations such as the top
and bottom of the storage. For bulk commodities more than 20 feet deep, a permanent or temporary
fumigant recirculation system should be considered. When recirculating fumigant through a closed
loop system, plan to run fans long enough to achieve at least three complete cycles.




Page 11
After making sure fumigation area is vacated, immediately lock and seal the last exit. If guards are
used, they should remain on duty during release, exposure, and aeration periods to prevent
unauthorized entry.
Open the valves to release the fumigant. Respiratory equipment must be available in the event of a
major leak or equipment failure.
5. Aerating the Building. When the exposure period is complete, aeration generally should be started
by opening previously sealed doors and windows on the ground floor. Ventilators accessible from
the outside should be opened at this time.
After partial aeration, a team of at least two trained people with appropriate respiratory protection,
should begin opening windows or remaining sealed openings, starting at the lower floors and
working upward. Fans should be on to assist aeration. Aeration is usually complete in four hours
depending upon weather conditions and cross ventilation. No one should be allowed inside the
building without respiratory protection until the methyl bromide concentration is 5 ppm or less in the
worker areas.
Contact the police, fire and health officials previously notified of the fumigation and inform them that it
has been completed.
F. Shipboard, In Transit Ship or Shiphold Fumigation.
IMPORTANT. Shipboard, in transit ship or shiphold fumigation is also governed by the U.S. Coast Guard
Regulations. Refer to and comply with those regulations prior to fumigation.
Prior to fumigating a vessel for in transit cargo fumigation, the master of the vessel or his representative
and the fumigator must determine whether the vessel is suitably designed and configured so as to allow
for safe occupancy by the ship鈥? crew throughout the duration of the fumigation. If it is determined that
s
the design and configuration of the vessel does not allow for safe occupancy by the ship鈥? crew s
throughout the duration of the fumigation, then the vessel must not be fumigated unless all crew
members are removed from the vessel. The crew members must not be allowed to reoccupy the vessel
until the vessel has been properly aerated and a determination has been made by the master of the
vessel and the fumigator that the vessel is safe for occupancy (5 ppm or below).
The person responsible for the fumigation must notify the master of the vessel or his representative of the
requirements: 1) relating to the use of respiratory protection equipment; 2) relating to the use of detection
equipment; and 3) that a person qualified in the use of this equipment must accompany the vessel with
cargo under fumigation. Emergency procedures, cargo ventilation, periodic monitoring and inspections,
and first aid measures must be discussed with and understood by the master of the vessel or his
representative.
During fumigation, or until a manned vessel leaves port or the cargo is aerated, the person in charge of
the fumigation shall ensure that a qualified person using gas detection equipment tests spaces for
fumigant leakage. If leakage of the fumigant is detected, the person in charge of the fumigation shall take
action to correct the leakage, or inform the master of the vessel, or his representative, of the leakage so
that corrective action can be taken.
Using appropriate gas detection equipment, monitor spaces adjacent to areas containing fumigated
cargo and all regularly occupied areas for fumigant leakage. If leakage above 5 ppm is detected, the
area should be evacuated of all personnel, ventilated, and action taken to correct the leakage, before
allowing the area to be reoccupied. Do not enter fumigated areas except under emergency conditions. If
necessary to enter a fumigated area, wear a NIOSH/MSHA approved self-contained breathing apparatus
(SCBA) or combination air-supplied/SCBA respirator (personal protection equipment). Never enter




Page 12
fumigated area alone. At least one other person, wearing personal protection equipment, should be
available to assist in case of an emergency.
If necessary to enter holds prior to discharge, test spaces directly above cargo surface for fumigant
concentration, using an appropriate gas detector and while wearing personal protection equipment. Do
not enter without respiratory protection, unless fumigation concentrations are at or below 5 ppm, as
indicated by a suitable detector.
If the fumigation is not completed and the vessel aerated before the manned vessel leaves port, the
person in charge of the vessel shall ensure that there be on board the vessel during the voyage: 1) at
least two NIOSH/MSHA approved self-contained breathing apparatus (SCBA) or combination
air-supplied/SCBA respirators; 2) one gas detection device; and 3) a person qualified in their operation.
Fumigation of any ship, shiphold, or a portion of the vessel (e.g., galley) requires careful planning. All
precautionary procedures as outlined previously must be followed. Aeration should be planned so that it
can be safely and effectively conducted. Adequate supplemental fans to ventilate quarters, decks,
bottom of shipholds, etc., should be available for use. Tubing attached to fans or used as a temporary
exhaust stack for aeration should also be prepared in advance. Recirculation systems for fumigation of
grain and other commodities in shipholds must be installed before loading.
The master of the vessel or his representative and the fumigator should discuss security of an
unoccupied vessel under fumigation and make arrangements to prevent unauthorized boarding. If a
crew member will need to board such a vessel for a necessary ship function (e.g., boiler check) the crew
member must be trained in the proper use of respiratory protection equipment. The fumigator should test
all passageways and areas where the crew member will be entering to determine if fumigant
concentrations exceed 5 ppm in the air. If concentrations exceed 5 ppm, then required respiratory
equipment must be worn.
See appropriate table for rates of application and exposure times.




Page 13
TABLE I
APPLICATION SUMMARY
METH-O-GAS 庐 100
FOR STORED PRODUCTS PESTS INFESTING RAW AGRICULTURAL COMMODITIES
(NOT PROCESSED FOOD)
EXPOSURE
DOSAGE
TOLERANCE
INSECTS CONTROLLED
COMMODITY
TIME (HRS)
(Ib/1000 ft3)
(ppm)
confused flour beetle, saw 200 3.5 24
Almonds
toothed grain beetle, 200 3.5 24
Brazil Nuts r
dermestids, Indian meal moth, 200 3.5 24
Bushnuts
rice weevil, khapra beetle,
200 3.5 24
Butternuts drugstore beetle, cigarette
beetle, warehouse moth, rusty 200 3.5 24
Cashews
grain beetle, cadelle, groundnut 200 6 6
Chestnuts bruchid, pecan weevil
200 3.5 24
Chestnuts
200 3.5 24
Filbetts
200 3.5 24
Hickory Nuts
200 3.5 24
Peanuts
200 3.5 24
Pecans
200 3.5 24
Pistachios
200 3.5 24
Walnuts
oriental fruit moth, coddling 5 5 2
Apples
moth, apple maggot, apple 20 5 2
Apricots
curculio, twig borer, melon fruit 1-2 3-4
20
fly, Mediterranean fruit fly,
Blueberries
20 5 2
Cherries Oriental fruit fly, cherry fruit fly,
brown mite, green peach aphid, 20 5 2
Nectarines
scales, thrips 20 5 2
Peaches
5 5 2
Pears
20 5 2
Plums
5 5 2
Quinces
60(e) 2-3 3-4
Strawberries
coffee bean weevil, Australian 20 5 2
Prunes
spider beetle, saw toothed and
merchant grain beetles, dried fruit
beetles, Indian meal moth,
confused flour beetle, drugstore
beetle, warehouse moth, common
grain mite
50 5 12
granary weevil, lesser grain
Barley
50 2 24
borer, rusty grain beetle,
Corn
angoumois grain moth, Indian 50 3 24
Oats meal moth, confused flour
240 1.5 2(a)
beetle, rice weevil, saw toothed
Popcorn
50 6 12(b)
grain beetle, lesser grain borer,
Rice
cadelle, khapra beetle, 50 3 24
Rice drugstore beetle, Australian
50 3 24
Rye spider beetle, cigarette beetle,
50 6 12(b)
warehouse moth, common
Rye
grain mite, flat grain beetle, 50 4 24
Sorghum (grain)
Mediterranean flour moth, red 50 3 24
Wheat flour beetle, common bean
weevil, copra beetle




Page 14
INSECTS CONTROLLED TOLERANCE DOSAGE EXPOSURE
COMMODITY
(lb/1000 ft3)
(ppm) TIME (HRS)
armyworms, cabbage looper, 50 3.5 24
Beans (all)
European corn borer, Japanese 4
Beets (roots) 30 3
beetle, pod borers, Oriental fruit
4 4(d)
Cabbage 50
fly, Mediterranean fruit fly, corn
2
Cantaloupe 20 2
earworm, green stink bug,
sawbugs, spider mites, 4
30 4
Carrots
cabbage maggots, lygus bug,
30 3 2
Citron
melon aphid, pickleworm,
Cucumbers 2.5
30 4
carrot rust fly, stink bug, bean
20 3
Eggplant leaf beetle, Mexican bean 4
beetle, diabrotica beetle, 2
Honeydew Melons 20 2.5
cucumber beetle, squash bug,
Jerusalem Artichokes 30 3.5 4
false chinch bug, loopers,
20 2
2.5
Muskmelons symphylans blister beetles,
onion maggot, onion thrips,
Okra 30 3.5 2 (c)
mealybugs, pepper maggot, 20
Onions 3 6
Colorado potato beetle, potato
3
30 4
Parsnips (roots) psyllid, squash bug, squash
3
50 2
vine borer, earwigs, darkling
Peas (with pods)
beetle 4
3
50
Sweet Corn
4 2
30
Peppers
2.5
30 3
Pimentos
4
Pineapples 20 2
3 6
Potatoes 75
2
20
Pumpkins 2.5
4
Radishes 3
30
6
30 3
Rutabagas
4 2
30
Squash (summer)
2
20 4
Squash (winter)
20 3
Text
Squash (zucchini)
3
30 4
Sugar Beets (roots)
Sweet Potatoes 75 4
Text
4
Tomatoes 20 3
30 4
Turnips (roots) 3
2
2.5
20
Watermelons
Yams 30 4
50 4
4
Cipolini Bulbs Exosoma lusitanica
Cocoa Beans cocoa moth, cigarette beetle, 50 1.5 12(a)
confused flour beetle,
warehouse moth, flat grain 16-24
1-2
50
beetle, coffee bean weevil
8
Cotton Seed Pectinophora spp., khapra 200 24(b)(c)
beetle, boll weevil, saw toothed
grain beetle
4
3
Garlic Brachycera spp., dyspessa 50
ulula, brown wheat mite, onion
maggot, onion thrips
4
3
Horseradish (roots) baris lepidii 30
3
3
Salsify Roots armyworm, flea beetle, 30
leafhoppers, stink bugs,
tarnished plant bug
24
alfalfa weevil, cereal leaf beetle 3
Hay (alfalfa) 50




Page 15
DOSAGE EXPOSURE
TOLERANCE
INSECTS CONTROLLED
COMMODITY
(Ib/1000 ft3)
(ppm) TIME (HRS)
Grapefruit (1) 2
30 3
Anastrepha spp., Proeulia spp.,
Grapes Leptoglossus spp., Megalometis 2
4
20
spp. Naupactus spp.,
Kumquat 2
30 3
Listroderes spp., Conoderus
2
(1)
3
Lemons 30
spp., Brevipalpus spp., ants
Lime (1) aphids, citrus scale, citrus 30 3 2
mites, leaf rollers, white flies,
30 3 2
Orange(1)
thrips, California orangedog,
Tangelos(1) 30 3 2
mealybugs, orange tortrix
Tanqerine(1) 30 3 2
Baled Tobacco drugstore beetle, cigarette 2-3 40-72
beetle, tobacco beetle, tobacco 4
4(a)
moth 4
Processed Tobacco (i.e. 4(a)
cigars)
24
3
Baled Cotton pink bollworm, boll weevil
4 (a) 2


1
Check with local authorities or Great Lakes Chemical
Tolerance of fruit to methyl bromide may vary with different varieties.
Corporation for additional information.
(a) Vacuum chamber fumigation.
(b) Khapra beetle quarantine.
(c) Pink bollworm quarantine.
(d) Must be used in accordance with the plant quarantine program of the USDA.
(e) Pre- and post-harvest.




Page 16
TABLE II
APPLICATION SUMMARY FOR PROCESSED FOOD
METH-O-GAS 100

COMMODITY INSECTS TOLERANCE DOSAGE EXPOSURE
CONTROLLED 3
TIME (hrs)
(I b/1000 ft )
(ppm)
Apples (dried) saw toothed beetle, 125 1 24
merchant beetle, dried
Apricots (dried) 125 1 24
fruit beetle, Indian meal
Cherries (dried) 125 1 24
moth, confused flour
Dates 125 1 24
beetle, Australian spider
beetle, cigarette beetle,
Figs (dried) 250 1 24
warehouse moth,
Peaches (dried) 125 1 24
common grain mite,
Prunes (dried) 125 1 24
coffee bean weevil,
carob moth
Raisins (dried) 125 1 24
Cheese (Parmesan and cheese mites, cheese 325 1-2 12-24
roquefort) skipper, cheese
maggot
Dried Peas granary weevil, lesser 125 4 24
grain borer, rusty grain
beetle, angoumois
grain moth, Indian meal
moth, confused flour
beetle, rice weevil, saw
toothed grain beetle,
lesser grain borer,
cadelle, khapra beetle,
drugstore beetle,
Australian spider beetle,
cigarette beetle,
warehouse moth,
common grain mite, flat
grain beetle,
Mediterranean flour
moth, red flour beetle,
common bean weevil,
copra beetle
Eggs (dried) larder beetle 400 l-2 12-24
Ham Houses cheese skipper, larder 325 l-2 12-24
beetle, red legged ham
beetle, mites
saw toothed beetle, flat
Processed Foods 125 l-2 12-24
grain beetle, flour
beetle, cigarette beetle,
Indian meal moth
confused flour beetle,
Processed Grain (a) 125 1.5 24
rice weevil, granary
weevil, saw toothed
grain beetle, rusty grain
beetle, lesser grain
borer, cadelle, khapra
beetle, drugstore
beetle, Australian spider
beetle, cigarette beetle




Page 17
TOLERANCE
COMMODITY EXPOSURE
INSECTS DOSAGE
3
TIME (hrs)
CONTROLLED (lb/1000 ft )
(ppm)
12-24
Processed Grain (b) flour beetle, saw 125 1-2
toothed grain beetle,
Mediterranean flour
moth
24
Processed Grain (c) flour beetle, grain 125 1.5
beetle, mealworms,
cigarette beetle, Indian
meal moth
12
Spices and saw toothed beetle, flat 400 3
Herbs (dried) grain beetle, cigarette
beetle, trogoderma
spp., Indian meal moth,
dried fruit beetle,
Australian spider beetle,
warehouse moth,
confused flour beetle,
rusty grain beetle,
lesser grain borer,
drugstore beetle
12-24
Animal Feed (i.e. cigarette beetle, saw l-2
400
toothed grain beetle,
pet food)
flour beetle, Indian meal
moth
(a) Corn grits and cracked rice.
(b) Processed grain from equipment fumigation.
(c) Processed grain used in production of fermented beverages.




Page 18
TABLE Ill
METH-O-GAS 100
APPLICATION SUMMARY FOR STRUCTURES CONTAINING
RAW OR PROCESSED COMMODITIES鈥?

TREATMENT PESTS VOLUME RATE EXPOSURE
SITE TIME (hrs)
(lb/1000 ft3)
less than 100,000 ft3
Warehouse cockroaches, confused flour beetle, 1-3 24
rice weevil, granary weevil, saw 100,000-500,000 ft3
Grain Elevator 1-1.5 24
toothed grain beetle, rusty grain beetle, 500,000-1,000,000 ft3
Food Processing 1-1.25 24
lesser grain borer, cadelle, khapra o v e r 1 , 0 0 0 , 0 0 0 f t3
Plant 1 24
beetle, drugstore beetle, larder beetle,
Restaurant carpet beetle, copra beetle, coffee
Feed Room bean weevil, groundnut bruchid,
Grain Bin common bean weevil, dried fruit
beetle, golden spider beetle, Australian
spider beetle, cigarette beetle,
angoumois grain moth, Mediterranean
flour moth, warehouse moth, Indian
meal moth, common grain mite
rats and mice 4-5 oz. 12-18
At temperatures below 60掳F., increase the dosage by 1/2 lb per 1,000 cu. ft. for every 10掳F drop in temperature or use an approved
procedure to heat the fumigant. Do not fumigate when temperature is below 40掳F.


NOTE: Remove food and feed commodities not listed in Tables I and II before fumigating structures.




Page 19
TABLE IV
APPLICATION SUMMARY FOR NON-FOOD PRODUCTS

METH-O-GAS 100

MATERIALS AND PESTS CONTROLLED DOSAGE EXPOSURE
PRODUCTS 3
TIME (hrs)
(Ib/1000 ft )
Machinery, packing & woodboring insects, 2-6 24-72
bagging material, Coleoptera, mites, spiders,
miscellaneous non-food snails, cockroaches,
cargo, (e.g., ceramic, marble, Lepidoptera
brassware, handicrafts,
burlap, appliances)
Forest and plant products woodborers, bark beetles, 3-6 16-24
(e.g., lumber, firewood, termites, carpenter ants,
driftwood, pallets, crates, horntails, old house borer,
paper, cardboard, carvings, powder post beetles,
grapevine wreaths, dried Hymenoptera, Coleoptera,
plants, Spanish moss, woodworm, wharf borer,
bamboo and wicker, mulch, wood wasps, mites,
etc.) Lepidoptera




Page 20

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