The ASTM D4585/D4585M-18 standard is used to evaluate the water resistance of coatings in a controlled condensing environment. This method simulates the durability of coatings in humid conditions by exposing the sample to a controlled temperature environment in saturated steam. Test results are used to determine whether the coating can resist water-induced deterioration, including Color change, blistering, gluing loss, etc. The standard does not provide guidance on specific sample prepative or test conditions, but emphasizes the conformity of the test environment and periodic drying of the sample to ensure the accuracy of the results.