What is the term for a material that allows no measurable movement of the pesticide through it during use?

The correct term for a material that allows no measurable movement of the pesticide through it during use is non-permeable material. Non-permeable materials are specifically designed to prevent the passage of liquids, vapors, or gases, ensuring that hazardous substances do not leak or migrate through the material. This characteristic is crucial for ensuring safety during pesticide handling and application, as it minimizes the risk of exposure to harmful chemicals.

Chemical resistant materials refer to substances that can withstand contact with chemicals without degrading or losing their functionality, but they do not necessarily imply that there is no movement of substances through them. Protective equipment encompasses a broader range of gear designed to safeguard individuals from exposure to chemicals, but it may not specify the permeability characteristics of the materials used. An impenetrable barrier suggests complete prevention of movement, but the terminology is less commonly used in the context of pesticide handling compared to non-permeable materials. Therefore, non-permeable material is the most precise and appropriate term in this context.