How do you check the concentration of chemical sanitizing dish machines by?

To check the concentration of chemical sanitizing dish machines, you typically use test strips specifically designed for the sanitizing agent being used, such as chlorine or quaternary ammonium compounds. Dip the test strip into the solution from the machine for the specified time, then compare the resulting color change to the provided chart to determine the concentration. Alternatively, a digital titration method can be used for more precise measurement. Regular monitoring ensures effective sanitization and compliance with health standards.