What is an important step in verifying if a cleaning solution is effective?

An important step in verifying the effectiveness of a cleaning solution is checking the concentration levels using test strips. This procedure is crucial because the efficacy of many cleaning agents is directly tied to their concentration. If a solution is too diluted, it may not be strong enough to remove dirt and bacteria effectively. Conversely, if it is too concentrated, it could be harmful to surfaces or pose safety risks.

Using test strips allows one to accurately gauge the concentration of active ingredients in the cleaning solution, ensuring that it meets the recommended levels for optimal performance. This step is commonly overlooked but is essential for ensuring that the cleaning solution will function as intended in practical applications, whether in home cleaning or commercial use.