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GB 25502-2017 English PDF (GB25502-2017)

GB 25502-2017 English PDF (GB25502-2017)

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GB 25502-2017: Minimum allowable values of water efficiency and water efficiency grades for water closets
This Standard specifies the minimum allowable values of water efficiency, water saving evaluation values, water efficiency grades and test methods for water closets. This Standard is applicable to the water efficiency evaluation of all types of water closets installed on cool water pipelines in building facilities and the water supply pressure is not greater than 0.6MPa.

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