Final answer:
The symbol indicates that you should wash your hands after using the solution, as per CDC handwashing recommendations, to ensure safety and prevent contamination.
Step-by-step explanation:
If you notice a symbol on a bottle of solution that shows hands and a sink with running tap water, you should understand it as an instruction for washing hands. This symbol typically means that you need to wash your hands after using the product, likely because it contains chemicals or substances that could be harmful if they remain on your skin.
Following the CDC handwashing recommendations, you should wet your hands with clean, running water, apply soap, and rinse thoroughly to ensure all potential contaminants are washed away. It is important to dry your hands properly with a clean towel afterward, and if possible, use a towel to turn off the faucet to avoid recontamination.
In a laboratory or classroom setting, handwashing is a critical safety practice to prevent the spread of contaminants and to maintain personal and public health. Always adhere to safety symbols and instructions when handling any solutions or chemicals.