The physical destruction or decomposition of chemical protective clothing by a chemical action is called?

• A. Permeation
• B. Degradation
• C. Penetration
• D. Breakthrough Time

Answer: (B)

When assessing how chemical protective clothing responds to exposure, the key distinction is how the chemical interacts with the material itself. Permeation means the chemical moves through the fabric at a molecular level, but the fabric may stay intact while the chemical passes through. Penetration refers to a physical breach, like a tear or opening, that allows the chemical to reach the skin. Breakthrough time is about how long the garment can resist leakage before the chemical is detected on the inner surface. Degradation describes the chemical action that actually attacks the material, causing damage such as swelling, cracking, softening, embrittlement, or dissolution. This is the term that captures the idea of physical destruction or decomposition of the clothing due to chemical action, indicating the protective gear is losing its integrity. A chemical that degrades the fabric can compromise protection even without rapid permeation or a visible hole, which is why degradation is the best fit.