This standard specifies the minimum allowable values of water efficiency, evaluating values of water conservation, water efficiency grade and test method of water closet.
This standard is applicable to evaluation for water efficiency of various water closets installed in cold water pipeline in building facilities and used on the condition of water supply pressure not greater than 0.6MPa.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB 6952 Sanitary Wares
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB 6952 and the followings apply.
3.1
average water consumption of water closet
water consumption of water closet measured and calculated according to the test method and calculation formula specified in the standard
3.2
minimum allowable values of water efficiency for water closet
permissible maximum water consumption of water closet in accordance with the general technical requirements, flushing function requirements, matchability technical requirements under the test condition specified in the standard
Note: water consumption of single-flush water closet refers to the average water consumption and that of dual-flush water closet includes average water consumption and full-flushing maximum water consumption.
3.3
evaluating values of water conservation for products
permissible maximum water consumption of water-saving water closet in accordance with the general technical requirements, flushing function requirements, matchability technical requirements under the test condition specified in the standard
Notes:
1 Evaluating values of water conservation is adopted for evaluating water-saving water closet.
2 Water consumption of single-flush water closet refers to the average water consumption and that of dual-flush water closet includes average water consumption and full-flush maximum water consumption.
