This standard specifies the anti-bacterial performance test method and effect evaluation of antibacterial coatings (paint films) used in construction and wood. It covers how to determine the resistance of Coatings to bacteria, and is applicable to the performance testing of different Coatings. The standard refers to relevant normative documents, including the condition adjustment method of Coating samples, the sampling method of Coating samples, etc., to ensure the accuracy and conformity of the test. It is suitable for evaluating the antibacterial effect of Coatings, thereby assisting in the selection and application of efficient antibacterial coatings.