ISO 16276-2-2007 "Criteria for evaluation and acceptance of corrosion protective coatings systems for steel structures, adhesion/cohesion (breaking strength), Part 2: Cross-cut test and X-cut test" provides a standardized method for evaluating coating adhesion in the field. This standard specifies the use of cross-cut and X-cut tests to evaluate the adhesion and cohesion of coating systems on steel structures. Through the test methods defined in ISO 2409 and ASTM D 3359, ISO 16276-2 aims to provide a uniform evaluation standard for the practical application of coatings. This document specifies not only the implementation details of the test, but also the sampling plan and acceptance criteria to ensure the performance and Reliability of the coating during use. ISO 16276-2 is suitable for construction sites and industrial environments and is essential for assessing and maintaining the mass of coatings.