The ASTM D 2486-17 standard is a standard test method for the scruf resistance of wall paints. The purpose of this standard is to evaluate the resistance of different types of coatings to repeated scrubbing during long-term use. Coatings are often exposed to high Flow rate areas such as doorways, windows, and work areas, so scrub resistance testing is essential. This standard includes two main test methods: Method A evaluates the failure period of the Coating, while Method B compares the percentage of scruf durability of the tested Coating with the known reference Coating. With these tests, the durability and durability of the Coating in actual use can be determined, providing consumers and manufacturers with consistent product performance standards.