The ASTM D3928-2000A (2018) standard provides a test method for evaluating the uniformity of gloss or Gloss. It is mainly used for Coating application on a test board that simulates the interior-wall section. The method involves visual evaluation of changes in gloss or Gloss, which may be caused by short wet edge time, poor levelling, and pigment orientation or flotation during and after application. Due to the subjectivity of application and evaluation, this method is only suitable for comparative tests in the same laboratory, and the rating results of different laboratories may be inconsistent. The values given in the standard should be regarded as the standard, and the values in parentheses are for reference only. This standard does not address all safety issues related to its use. It is the responsibility of the user to determine appropriate safety and health practices and to determine the applicability of regulatory restrictions before use.