GB/T 30790.7-2014 "Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 7: Execution and supervision of paint work" applies to the implementation and management of paint work for steel structures in workshops or on-site. It specifies core requirements such as construction qualifications, prerequisites, and quality plans. The standard is associated with multiple supporting testing methods. During the painting process, a coating thickness gauge must be used to measure the dry film thickness, while a cross-cut tester or pull-off adhesion tester is required to inspect the coating adhesion. Additionally, relevant standards must be referenced to evaluate surface cleanliness, providing a unified basis for the standardization and quality control of painting operations.