What does "breakthrough time" refer to?

The term "breakthrough time" specifically refers to the duration that protective gloves can effectively barrier against chemicals before the chemicals permeate through the material. This measure is critical when selecting gloves for specific tasks in cosmetology or any setting where exposure to harmful substances is possible. Understanding breakthrough time ensures that professionals are using suitable gloves to safeguard their skin and health while performing procedures involving chemicals.

The other options do not accurately represent this concept. For example, applying gloves, the speed of chemical reactions, and the overall lifespan of gloves are relevant considerations in safety and usage, but they do not define the specific timeframe wherein gloves maintain their protective qualities against chemical penetration.