Vikane Gas Fumigant

According to the label, what is the maximum allowable concentration of Vikane in the breathing zone before a structure can be reoccupied?

• 0.5 ppm
• 1 ppm ✓
• 5 ppm
• 10 ppm

Answer: The structure may be reoccupied when concentrations in the breathing zones in all units is 1 ppm or less.

When fumigating a surface ship in port, which of the following is prohibited from being on board during the process?

• The ship's captain
• People, plants, or pets ✓
• The professional fumigator
• Coast Guard officials

Answer: The label states that except for those involved in fumigation, no people, plants, or pets may be on board during fumigation.

If a connected structure cannot be isolated or sealed to prevent the passage of fumigant, what action must be taken?

• The connected structure must be fumigated with a higher concentration
• The connected structure must be vacated and treated as a fumigated structure ✓
• The connected structure must be sprayed with Chloropicrin only
• The fumigation must be canceled immediately

Answer: If state rules do not permit isolating a connected structure, that structure must be vacated and shall be considered as a fumigated structure with all applicable rules applied.

What is the maximum amount of Chloropicrin (warning agent) that should be used per container?

• No more than 3 fl oz ✓
• Exactly 1 fl oz
• No more than 10 fl oz
• 1 fl oz per 10,000 cubic feet

Answer: The mixing instructions specify using no more than 3 fl oz per container for the warning agent.

Which materials must NOT be used for chloropicrin evaporation containers or application equipment due to corrosion risks?

• Plastic and glass
• Steel and iron
• Magnesium, aluminum, or their alloys ✓
• Copper and brass

Answer: The label warns not to use containers or equipment made of magnesium, aluminum, or their alloys as chloropicrin may be severely corrosive to such metals.

To ensure proper distribution of Chloropicrin, where should the evaporation container be placed?

• In a sealed corner of the room
• In the air stream of a fan ✓
• Directly on the floor near the entrance
• Inside a secondary containment vessel

Answer: To enhance the distribution of chloropicrin throughout the structure, the label instructs to place the chloropicrin evaporation container in the air stream of a fan.

What type of PPE is required if reentry is necessary before aeration is completed?

• N95 particulate respirator
• Half-face respirator with organic vapor cartridges
• Positive pressure self-contained respiratory protection ✓
• Full-face air-purifying respirator

Answer: The label states that if reentry is necessary before aeration is completed, positive pressure self-contained respiratory protection must be worn.

When fumigating a single unit within a multi-unit structure like an apartment, how must the exterior entranceways to individual units be secured?

• With standard door latches
• With temporary tape seals
• With secondary locks accessible only to the state licensed applicator in charge ✓
• With padlocks provided by the occupant

Answer: The label requires that all exterior entranceways and doors providing access to individual units are secured with secondary locks so that only the state licensed applicator in charge can gain access.