(1)Scope: Covers pesticides which when applied, forms a gas to control pests.
(a)Types of fumigants include aluminum phosphide, methyl bromide, chloropicrin, 1,3-D (Telone), dazomet, metam sodium and iodomethane.
(b)Types of fumigations include soil, space (warehouse), vertical storage, flat storage, tarpaulin, spot (includes grain handling equipment, empty tanks and empty silos), chamber, vehicle and rodent burrows.
(3)All work with fumigants must follow the instructions and precautions in the manufacturer’s application manual and on the product label and MSDS.
(4)All entry points into fumigated interior areas must have signs that identify the area as fumigated and prohibit entry.
(5)Leave the signs posted according to the instructions of the manufacturer of the fumigating chemical or until the hazard resulting from the fumigation is gone, whichever is the longer time.
(6)After fumigation, there must be a way to aerate the fumigated area without contaminating other areas where there are employees.
(7)If the fumigation process requires the worker to be in the fumigated area, there must be at least one other person present to assist during an emergency. That person must have the same training and access to the same personal protective equipment as the first worker.
(8)Fumigation chambers or areas must not allow the toxic fumigants to escape or otherwise enter other areas where they can be hazardous to other workers.
(9)If the fumigant concentration can exceed 10 percent of the lower explosive limit (LEL), all electrical equipment, fittings, and connections must be vapor proof.
Rule 437-004-9010 — Fumigated Areas.,