GB 38448-2019Minimum allowable values and grades of the energy efficiency and water efficiency for smart water closets (English PDF)
智能坐便器能效水效限定值及等级
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Mandatory
Issue date
December 31, 2019
Implementation date
January 1, 2021
Scope
GB 38448-2019 is the English-translated version of 智能坐便器能效水效限定值及等级.
GB 38448-2019 specifies the minimum allowable values and grades of energy efficiency and water efficiency, the technical requirements and the test methods for smart water closets, both integral units and split seat-and-cover units, installed on cold water pipelines in buildings at a static supply pressure of 0.1 MPa to 0.6 MPa.
Three grades are defined, grade 3 being the minimum allowable level: energy consumption per 1.5 h test cycle is limited to 0.030, 0.040 and 0.060 kW·h for models with seat heating and 0.010, 0.020 and 0.030 kW·h for models without, average cleaning water consumption to 0.30, 0.50 and 0.70 L, and flushing water consumption of integral units follows the corresponding grades of GB 25502, with half-flush volume not exceeding 70% of the full-flush limit.
Technical requirements cover washing water temperature (35 °C to 42 °C at the highest setting), nozzle self-cleaning, flushing performance to GB/T 6952, ball, granule, mixed media and toilet paper discharge, drain line transport of at least 12 m, and seat temperatures of 30 °C to 42 °C. The normative annexes give the test methods, including the energy consumption test sequence at (23 ± 1) °C ambient and (15 ± 1) °C inlet water, cleaning and flushing water consumption tests at specified pressures, and the standardized water supply system.
It is a first edition, issued on 31 December 2019 with an implementation date of 1 January 2021. Classification: ICS 27.010, CCS F01. The document runs to 14 pages, delivered complete in English translation.
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Document preview — GB 38448-2019
National Standard of the People's Republic of China
- ICS
- 27.010
- Classification
- F01
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Energy and water efficiency grades of the smart toilets
- 5 Technical requirements
- 6 Test methods
- Annex A (normative) Test methods
- Annex B (normative) Standardized water supply system
3 Terms and definitions
4 Energy and water efficiency grades of the smart toilets
5 Technical requirements
6 Test methods
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Standardization Administration of China and the Department of Resource Conservation and Environmental Protection of the National Development and Reform Commission of the People's Republic of China.
This standard is under the jurisdiction of the Standardization Administration of China.
Drafting organisations: JOMOO Kitchen & Bath Co., Ltd., HEGII Sanitaryware Group Co., Ltd., Shanghai Kohler Electronics Co., Ltd., Xiamen Kemu Intelligent Technology Co., Ltd., Guangdong Lehua Home Furnishing Co., Ltd., Xiamen Oulitong Electronic Technology Development Co., Ltd., China National Institute of Standardization, China Building Material Test & Certification Group (Shaanxi) Co., Ltd., Huida Sanitary Ware Co., Ltd., Duravit Sanitary Technology (Shanghai) Co., Ltd., Foshan Jiajia Sanitary Ware Co., Ltd., Foshan Dongpeng Sanitary Ware Co., Ltd., Xiamen R&T Plumbing Technology Co., Ltd., Xiamen Zhijie Intelligent Technology Co., Ltd., Yilai (Tianjin) Sanitary Ware Co., Ltd. Shanghai Branch, Panasonic Appliances (China) Co., Ltd., Zhejiang Yihe Sanitary Ware Co., Ltd., Zhejiang Tejieer Intelligent Sanitary Ware Co., Ltd., Zhejiang Yingshili Sanitary Ware Co., Ltd., Xiwei Technology (Zhejiang) Co., Ltd., Bairui Runxing (Beijing) Technology Development Co., Ltd., Zhejiang Weiwei Electronic Sanitary Ware Co., Ltd., Guangdong Yingjing Technology Co., Ltd., Ningbo Shunjie Sanitary Ware Co., Ltd., Yueyang Technology (Xiamen) Co., Ltd., Zhejiang Xingxing Bianjiebao Co., Ltd., Ningbo Jitian Intelligent Sanitary Ware Technology Co., Ltd., Foshan Faen Sanitary Ware Co., Ltd., Foshan Gaoming Anhua Ceramic Sanitary Ware Co., Ltd., Xima Intelligent Technology Co., Ltd., Guangdong Shanggao Technology Co., Ltd., Aifeiling Sanitary Ware Technology Group Co., Ltd., Shanghai Geberit Sanitary Equipment Engineering Technology Co., Ltd., Guangdong Anbi Technology Co., Ltd., Xiamen Yousheng Kitchen and Bath Technology Co., Ltd., Guangdong Taini Technology Co., Ltd., Fulaika (Zhejiang) Intelligent Technology Co., Ltd., Quzhou Gangcheng Electromechanical Products Manufacturing Co., Ltd., Jianyan Testing Group Co., Ltd., Guangdong Fabiya Intelligent Technology Co., Ltd., Guangdong Xianghua Technology Co., Ltd., Guangdong Oubeier Intelligent Technology Co., Ltd., Guangdong Hengtongda Technology Co., Ltd., Guangdong Anbaili Sanitary Ware Technology Co., Ltd., Rifeng Enterprise Group Co., Ltd., Guangzhou Oupai Sanitary Ware Co., Ltd., Guangdong Tongyong Sanitary Equipment Co., Ltd., Guangdong Chuangchao Liuyuge Technology Co., Ltd., Guangdong Yatao Technology Co., Ltd.
Main drafters: Zhang Fan, Bai Xue, Lin Xiaowei, Xie Xufan, Wang Haitao, Lin Shan, Xie Yuerong, Wu Duanlong, Xie Xiaojun, Shang Bei, Wang Kaifang, Zhu Shuangsi, Zhu Xuedan, Zhang Xuesong, Song Baichao, Huo Chengji, Yang Lixin, Wang Bing, Huang Bo, Fang Yubao, Zhou Bin, Peng Wensong, Xu Haihong, Ruan Chunyou, Wu Haibing, Li Runfan, Jin Jianguo, Huang Qiaming, Ma Zhonghui, Li Jianfei, Liu Xiang, Yang Xinhao, Yan Bangping, Li Hongshun, Liu Rizhi, Feng Jianfeng, Lin Yubin, Deng Baoyu, Su Yaobing, Li Feiyu, Wang Changping, Zhang Zhouquan, Wu Xishan, Zhong Jiaqiang, Su Shuxun, Lin Yi, Chen Shaowei, Lin Xuan, Chen Jiaxu, Zhu Peicheng, Zhang Jinsong, Jiang Conggao, Qiu Taohui, Su Peiming, Yin Jun, Ou Zhuokun, Weng Xiaowei, Liu Guishen, Ding Zheyu, Zeng Wen, Wang Yu, Tian Tao, Li Wenqing, Chen Wenbin, Wang Ze, Li Wen, Mao Xianbian, Li Pengguo, Wang Chen, Sun Yan, Dang Jianming, Zhang Qi, Liu Shuang, Sun Jianwu.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.
Referenced standards
Normative references
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Editions of GB 38448
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB 38448-2019 | Minimum allowable values and grades of the energy efficiency and water efficiency for smart water closets | current edition | Current |
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Related Standards
GB 25502-2024 — Minimum Allowable Values of Water Efficiency and Water Efficiency Grades for Water Closets
GB/T 20810-2018 — Toilet tissue paper (including toilet tissue base paper)
GB/T 6952-2015 — Sanitary wares
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GB 38448-2019
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