Bacterial test strips can be used to detect bacteria in the entire coating production system at any time. Using bacterial test strips to detect bacterial content does not require preparation time and can be tested at any time to quickly obtain results: bacteria (24-48 hours); Mold and yeast (72 hours). No need to conduct additional microbiological experiments, thus saving time and costs. The detection results are accurate and reliable, which can provide timely and effective monitoring of the bacterial content in the electrophoresis paint tank solution and provide a basis for taking sterilization measures. Bacterial test strips can also be used to monitor other systems on the coating line, such as anode systems, water flushing systems, etc. Using bacterial test strips is easy to operate, even people without microbiology training can operate them.