This standard specifies the terms and definitions, classification and marking, requirements, test methods, inspection rules and signs, Encasement, transportation and storage, etc. of water-based inorganic dry powder interior decoration materials for buildings. It is suitable for interior-wall inorganic dry powder construction coating materials using water as dispersing medium, mainly composed of inorganic adhesive materials, redispersible adhesive powders, inorganic fillers, functional aids and Miscellaneous mineral particles. According to the different effect of Coating decoration, these materials are divided into textured and flat-coated types, which are labeled as Class I and Class II respectively. Class I is textured dry powder interior decoration materials, which are suitable for non-flat decorative coatings for making various modeling patterns. Class II is a flat-coated dry powder interior decoration material, suitable for the production of flat decorative coatings.