The ASTM D4227-05 (2023) standard provides a standard method for coating constructors to verify their ability to apply specific coatings to concrete surfaces. This standard evaluates the proficiency of coating constructors with the use of appropriate tools and equipment and is applicable to safe areas including in nuclear facilities. Changes or simplifications in practice may apply to specific coating jobs. Assessments are performed by qualified agencies to ensure that the coating mass meets standard requirements. Users are expected to follow safety, health and environment practices and reference the actual requirements of the standard.