What solution is used to clean the work area in case of spills or contamination?

What solution is used to clean the work area in case of spills or contamination?

• A. 5% bleach
• B. 10% bleach
• C. Soap and water
• D. Alcohol

Answer: (B)

Disinfecting a work area after a spill relies on a strong, broad-spectrum disinfectant that can inactivate a wide range of germs on common lab surfaces. A 10% bleach solution is used because sodium hypochlorite at that concentration provides reliable, fast-acting disinfection for hard, nonporous surfaces, which is essential when dealing with spills or potential contamination. Soap and water only cleans away dirt and some germs but does not reliably disinfect, and alcohol, while a disinfectant, is less effective on organic material and porous surfaces and can be flammable. A weaker bleach solution (like 5%) may be less consistently effective for spills, so the higher concentration is preferred to ensure proper disinfecting contact. When using bleach, follow safety steps: apply the solution and keep the area wet for a recommended contact time, then rinse or wipe up and dispose of materials properly.

Disinfecting a work area after a spill relies on a strong, broad-spectrum disinfectant that can inactivate a wide range of germs on common lab surfaces. A 10% bleach solution is used because sodium hypochlorite at that concentration provides reliable, fast-acting disinfection for hard, nonporous surfaces, which is essential when dealing with spills or potential contamination. Soap and water only cleans away dirt and some germs but does not reliably disinfect, and alcohol, while a disinfectant, is less effective on organic material and porous surfaces and can be flammable. A weaker bleach solution (like 5%) may be less consistently effective for spills, so the higher concentration is preferred to ensure proper disinfecting contact. When using bleach, follow safety steps: apply the solution and keep the area wet for a recommended contact time, then rinse or wipe up and dispose of materials properly.