Some materials that are chemical-resistant to this product are barrier laminate or viton ≥ 14 mils. Handlers applying via weed sprayer (see Term used in this labeling section) while irrigation system is operating or handlers who may be exposed to liquid spray while repairing a malfunctioning chemigation system or shutting off equipment must wear: • chemical-resistant coveralls over long-sleeve shirt and long pants, • chemical-resistant gloves, • chemical-resistant footwear plus socks, • chemical-resistant headgear, and • respirator of the type specified in the respiratory protection section in the PPE requirements on this label. Handlers wearing chemical-resistant attire are limited to 30 minutes of exposure in any 60 minute period to prevent heat illness, and, as required by the Worker Protection Standard for Agricultural Pesticides, employers of these handlers must take any necessary steps to avoid heat illness. Except as required above, handlers transferring or loading liquid formulations, handlers operating motorized ground equipment with open cabs, handlers repairing or inactivating irrigation or chemigation equipment during application, and handlers cleaning up spills or equipment, must wear: • coveralls over long-sleeve shirt and long pants, • chemical-resistant gloves, • chemical-resistant footwear plus socks, • chemical-resistant apron if transferring or loading the fumigant or cleaning up spills or equipment, • protective eyewear, and • respirator of the type specified in the respiratory protection section in the PPE requirements on this label if triggered. All other handlers, including handlers operating motorized ground equipment with closed cabs (except for handlers who set up and calibrate chemigation and irrigation equipment and start the application from inside the application block) as stated in this labeling must wear: • long-sleeve shirt and long pants, • shoes plus socks, and • respirator of the type specified in the respiratory protection section in the PPE requirements on this label if triggered. All handlers who set-up and calibrate chemigation and irrigation equipment and start the application from inside the application block must wear: • long-sleeve shirt and long pants, • shoes plus socks, • protective eyewear, and • respirator of the type specified in the respiratory protection section in the PPE requirements on this label if triggered. When an air-purifying respirator is required under this label’s Directions for Use, Protection for Handlers, Respiratory Protection and/or Stop Work Triggers section, handlers must wear at minimum either: • A NIOSH certified full face piece air-purifying respirator equipped with an organic vapor (OV, NIOSH approval prefix TC-23C) cartridge and a particulate pre-filter (Type N, R, P, or HE, NIOSH approval number prefix TC-84A), or • A gas mask with a canister approved for organic vapor (NIOSH approval number prefix TC-14G). Cartridges or canisters must be replaced when odor or sensory irritation from this product becomes apparent during use, if the measured concentration of MITC is greater than 6000 ppb (6 ppm), or, in the absence of any other instructions or indications of service life, at the end of each day’s work period, whichever occurs first.