When handling corrosive and toxic substances, chemical resistant gloves should be worn. When selecting gloves to handle a substance, the suitability of the gloves should be considered. Depending on the material of the gloves, they could be easily permeable by some substances. An employee is handling tetrachloroethylene solution for a metal-cleaning process. Dermal exposure to tetrachloroethylene can cause skin irritation, and long-term exposure to it can have adverse neurological effects on humans. As a protective measure, the employee wears rubber-blend gloves while handling the tetrachloroethylene solution. The average thickness of the gloves is 0.67 mm, and the mass diffusivity of tetrachloroethylene in the gloves is 3 × 10^-8 m²/s. Estimate how long can the employee’s hand be in contact with the tetrachloroethylene solution before the concentration of the solution at the inner glove surface reaches 1% of the concentration at the outer surface. Is this type of glove suitable for handling tetrachloroethylene solution?