Which materials provide the best protection if gloves are required for a pesticide in chemical resistance category 'D'?

The correct answer is based on the specific characteristics of materials used for chemical resistance in handling pesticides. In chemical resistance category 'D', the materials are classified based on their ability to provide protection against various pesticides, particularly those that may be more hazardous or have a higher risk of penetration.

Barrier laminate or butyl rubber is known for its superior resistance to a wide range of chemicals, including solvents and pesticides. These materials are designed to prevent the penetration of harmful substances, which makes them ideal for situations where there is potential exposure to chemicals that can be harmful to skin or health.

In contrast, materials like latex, nitrile, and polyethylene have different levels of resistance. While nitrile, for example, offers good resistance to many chemicals, it may not provide the same level of protection against the specific pesticides classified in category 'D' as barrier laminate or butyl rubber does. Similarly, polyethylene provides limited chemical resistance and is typically used for general-purpose applications rather than for handling hazardous chemicals.

Thus, the selection of barrier laminate or butyl rubber for chemical resistance category 'D' ensures the highest level of safety when handling potentially harmful pesticides.