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See Chinese contents: GB 38448-2019 GB 38448-2019: Minimum allowable values and grades of the energy efficiency and water efficiency for smart water closets
This Standard specifies minimum allowable values and grades of the energy efficiency and water efficiency, technical requirements and test methods for smart water closets. This Standard is applicable to smart water closets that are installed on the coldwater pipeline in the building facility and used under the condition that static pressure of water supply is 0.1MPa ~ 0.6MPa.
