6.1 Label-Based PPE Selection & Chemical Resistance

PPE Selection and Chemical Resistance

The pesticide label states the minimum PPE for each activity. Mixing concentrate, applying diluted spray, repairing contaminated equipment, early entry, and cleaning a spill can have different requirements. Select PPE after identifying the product, formulation, task, exposure route, and label language.

Read the exact requirement

Look in Precautionary Statements, Directions for Use, and the Agricultural Use Requirements box. A label may require coveralls, long-sleeved shirt and long pants, chemical-resistant footwear, headgear for overhead exposure, protective eyewear, an apron, gloves of a stated material or EPA chemical-resistance category, or a specific NIOSH-approved respirator.

“Waterproof” and “chemical-resistant” are not interchangeable. Waterproof material prevents measurable water movement during the test period. Chemical-resistant material resists penetration by the pesticide for the intended use. A fabric work glove can be comfortable and still absorb concentrate.

If a label names materials—such as barrier laminate, butyl rubber, nitrile rubber, neoprene rubber, natural rubber, polyethylene, polyvinyl chloride, or Viton—use a permitted material. If it gives an EPA resistance category, use the category chart and the product's contact-time instructions. Do not choose gloves by color.

Gloves

Hands commonly contact containers, measuring tools, hoses, controls, and residues. Use unlined gloves when the label requires chemical-resistant gloves unless the label expressly permits another design. A fabric lining can trap pesticide next to skin.

No universal federal or Maine rule requires every pesticide glove to be at least 14 mils. Thickness affects durability and dexterity, while chemical type controls permeation. Follow the label and manufacturer compatibility data. Disposable exam gloves are not automatically suitable for concentrate handling.

Inspect gloves before use. Inflate or fill them only if the manufacturer allows that inspection method; stretching or water testing can damage some products. Replace gloves that are swollen, cracked, sticky, discolored, abraded, or leaking. Wash the outside before removal when the label or manufacturer permits reuse.

Cuff orientation is a practical drainage decision. For overhead work, arranging the sleeve over the glove cuff can keep liquid from running inside. For work with hands directed downward, the reverse arrangement may shed liquid away. The complete garment system and label matter more than memorizing one orientation for every task.

Body, footwear, and head protection

Long sleeves and long pants are ordinary work clothing, not chemical-resistant PPE. Coveralls add a layer but are not a vapor barrier. A chemical-resistant suit provides more splash protection and can add heat stress.

Wear label-required chemical-resistant footwear. Leather and absorbent athletic shoes are difficult to decontaminate after a concentrate spill, but they are not “illegal” in every pesticide task. The prohibition exists when the label or workplace rule requires chemical-resistant footwear. Wear pant legs so liquid does not funnel into the boot.

Chemical-resistant headgear protects the scalp and neck during overhead exposure. A baseball cap is absorbent and generally unsuitable when chemical-resistant headgear is required.

Eyes, face, and apron

Safety glasses protect against impact but do not provide the same splash protection as chemical-splash goggles. Use the exact label term. Direct-vent goggles can admit liquid; indirect-vent or nonvented splash goggles are designed for chemical splash. A face shield protects the face but usually does not replace required goggles unless the label or manufacturer states that it does.

A chemical-resistant apron is often label-required while mixing, loading, or cleaning equipment. It protects the torso from concentrate splash. The label determines when it is mandatory; it is not a universal legal requirement for every diluted application.

Engineering controls and WPS

Closed transfer systems, enclosed cabs, and other engineering controls can reduce exposure. Under WPS, certain controls can allow specific PPE modifications only when all regulatory and label conditions are satisfied. Never remove PPE simply because a cab has a roof.

Agricultural employers must provide label-required PPE to covered handlers, keep it clean and functional, ensure correct use, provide a clean changing and storage area, and train people who clean it. When a label requires a respirator, medical evaluation, fit testing, training, and record requirements apply.

Heat stress

PPE can trap heat and moisture. Plan work for cooler periods, supply water and rest, use shade, rotate demanding tasks, and recognize heat illness. Never defeat PPE by unzipping it in the exposure area. Stop, leave the area safely, decontaminate as appropriate, and cool down.

Selection checklist

1. Read the exact product and task PPE.
2. Identify formulation and likely splash, dust, mist, vapor, overhead, and contact hazards.
3. Check glove and garment material compatibility and condition.
4. Confirm that eye, face, foot, head, and respiratory pieces work together without gaps.
5. Add employer or site requirements that are more protective and compatible.
6. Inspect before use, control heat stress, and replace damaged equipment.

The correct exam answer follows the label and task. Reject absolute claims such as “all leather is always prohibited,” “every glove must be 14 mil,” or “a face shield always replaces goggles.”