GB/T 50205-2001 specifies the mass acceptance requirements for anti-corrosion coatings and fire-proof coatings paintings in the construction of steel structures. The standard covers the treatment of steel surfaces before painting, the application of coatings, and the detection of Coating thickness and adhesion. It is required that the painting project must be carried out after the steel structure installation and inspection are qualified. Coating paintings should meet environmental conditions, and the coating should be uniform and defect-free. Additional mass testing includes Coating thickness, adhesion, and marking integrity to ensure that the painting mass meets the design and construction standards.