This standard specifies the test method and result evaluation of the mold resistance performance of interior and exterior wall paint films in architectural coatings. Determination of mold resistance of other paint films can also refer to this standard. This test should be performed by personnel with some microbiological knowledge. This standard is applicable to the determination of the mold resistance of interior and exterior wall paint films. The mold resistance of other types of paint films can be measured with reference to this standard.