This document specifies the terms and definitions, classification and labeling, technical requirements, sample and specimen preparation, test methods, inspection rules and signs of one-component polyurethane foam caulking agent (hereinafter referred to as PU caulking agent) for building doors and windows, Packaging, transportation and storage. This document applies to aerosol canned one-component polyurethane foam caulking for building doors and windows using polyol and polyisocyanate as the main raw materials.