This standard specifies the scope, terms and definitions, classification and labeling, requirements, test methods, inspection rules and product marking, packaging, transportation and storage of cement-based self-leveling mortar for floor use. This standard applies to cement-based self-leveling mortar for floor use. The products included in this standard should not cause harmful effects on the human body, living things and the environment, involve safety and environmental protection issues related to use, and should comply with the relevant standards and specifications of our country.