GB 25502-2017: Minimum allowable values of water efficiency and water efficiency grades for water closets

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Scope

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.

Basic Data

Standard ID	GB 25502-2017 (GB25502-2017)
Description (Translated English)	Minimum allowable values of water efficiency and water efficiency grades for water closets
Sector / Industry	National Standard
Classification of Chinese Standard	Q31
Classification of International Standard	91.140.70
Word Count Estimation	4,454
Date of Issue	2017-03-09
Date of Implementation	2017-09-01
Older Standard (superseded by this standard)	GB 25502-2010
Quoted Standard	GB 6952
Regulation (derived from)	National Standard Notice No. 5 of 2017
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the water efficiency limit, water saving evaluation value, water efficiency grade and test method of the toilet. This standard applies to the installation of water conservancy in the construction facilities on the pipeline, the water pressure is not greater than 0.6 MPa under the conditions of the use of various types of toilet water efficiency evaluation.