The standard "DB 34/T 1481-2011 General-purpose saturated polyester resin for powder coatings" specifies the technical requirements, performance indicators and test methods for general-purpose saturated polyester resins for powder coatings. The Resin is widely used in the production of powder coatings and has excellent weathering resistance, chemical resistance and Mechanical Properties. It is suitable for surface painting of various metals and Non-metallic substrates. The standard specifies the technical indicators of Resin's molecular structure, viscosity, solubility, thermal stability, etc., and specifies the corresponding detection methods to ensure the Stability and conformity of Coatings. This standard provides a technical basis for the production and application of powder coatings, which helps to promote the development of the powder coatings industry and improve the mass and environmental performance of coatings.