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GB 28378-2012

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标准详细信息 GB 28378-2012; GB28378-2012
中文名称: 淋浴器用水效率限定值及用水效率等级
英文名称: Minimum allowable values of water efficiency and water efficiency grades for showers
行业: 国家标准
中标分类: Y71
国际标准分类: 91.060
字数估计: 6,000
引用标准: GB/T 8170-2008
起草单位: 国家排灌及节水设备产品质量监督检验中心
归口单位: 全国工业节水标准化技术委员会用水产品和器具用水效率分技术委员会
标准依据: 国家标准公告2012年第9号
提出机构: 国家发展和改革委员会和水利部
发布机构: 中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
范围: 本标准规定了淋浴器的用水效率限定值、节水评价值、用水效率等级、技术要求和试验方法。本标准适用于公称压力不大于1.0 MPa, 水介质温度不大于90℃条件下, 安装在盟洗室(洗手间、浴室)、淋浴房等卫生设施上使用的淋浴器。本标准不适用于自带加热装置的淋浴器。

GB 28378-2012
Minimum allowable values of water efficiency and water efficiency grades for showers
ICS 91.060
Y71
中华人民共和国国家标准
淋浴器用水效率限定值及用水效率等级
2012-04-01发布
2013-04-01实施
中华人民共和国国家质量监督检验检疫总局
中国国家标准化管理委员会发布
前言
本标准的第4.2条、第4.3条和第4.5条为强制性的,其余为推荐性的。
本标准依据GB/T 1.1-2009给出的规则起草。
本标准由国家发展和改革委员会和水利部提出。
本标准由全国工业节水标准化技术委员会用水产品和器具用水效率分技术委员会(SAC/TC442/
SC1)归口。
本标准起草单位:国家排灌及节水设备产品质量监督检验中心、中国标准化研究院、申鹭达集团有
限公司、九牧集团有限公司、辉煌水暖集团有限公司、中宇建材集团有限公司、乐家洁具(佛山)有限公
司、和成(中国)有限公司、福建福泉集团有限公司、潮安县康纳陶瓷洁具有限公司、广东省潮州市梦佳陶
瓷制作有限公司、广东欧美尔工贸实业有限公司、潮州市牧野陶瓷制造有限公司、潮州市非凡工艺实业
有限公司、潮安县鹏王陶瓷实业有限公司、潮安县欧贝尔陶瓷有限公司、广东欧陆卫浴有限公司、鹤山市
康立源卫浴实业有限公司、广东希恩卫浴实业有限公司、佛山市法恩洁具有限公司、开平市金汇丰实业
有限公司、合肥荣事达电子电器有限公司、福建省中心检验所、上海市质量监督检验技术研究院。
本标准起草人:朱双四、白雪、朱春雁、洪建城、林孝发、瓮贤敏、金明红、程晓敏、郑爱芬、朱一军、
唐敏俊、王建业、蔡建设、彭益群、邵则亮、洪金福、陈淑定、苏锡波、陈克平、黄礼辉、郑锡标、苏树周、
陈绍伟、陈放青、黄记源、黄镇怀、严邦平、刘亚清、潘保春。
淋浴器用水效率限定值及用水效率等级
1 范围
本标准规定了淋浴器的用水效率限定值、节水评价值、用水效率等级、技术要求和试验方法。
本标准适用于公称压力不大于1.0MPa,水介质温度不大于90℃条件下,安装在盥洗室(洗手间、
浴室)、淋浴房等卫生设施上使用的淋浴器。
本标准不适用于自带加热装置的淋浴器。
2 规范性引用文件
下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文
件。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。
GB/T 8170-2008 数值修约规则与极限数值的表示和判定
3 术语和定义
下列术语和定义适用于本文件。
3.1
淋浴器 showersforbathing
由阀体、花洒、连接管等部件组成的用于淋浴的器具。
3.2
流量均匀性 differenceamongflowrates
在规定的动压下,最高平均流量与最低平均流量之差。
3.3
淋浴器用水效率限定值 minimumalowablevaluesofwaterefficiencyforshowers
淋浴器允许的最大流量。
3.4
淋浴器用水效率等级 waterefficiencygradesforshowers
依据淋浴器的流量均匀性和流量值确定,分成1、2、3三个等级,1级表示用水效率最高,3级表示用
水效率限定值。
3.5
额定用水效率等级 ratedwaterefficiencygrade
淋浴器出厂时,由生产厂家按本标准规定注明的淋浴器用水效率等级。
4 技术要求
4.1 基本要求
淋浴器应符合产品明示要求。本标准数据判定采用修约比较法,数值修约按GB/T 8170-2008的
规定进行,修约数位应与前述极限值位数一致。
4.2 流量均匀性
在(0.10±0.01)MPa,(0.20±0.01)MPa和(0.30±0.01)MPa动压下,流量均匀性不大于0.10L/s。
4.3 最小流量
在(0.30±0.01)MPa动压下,流量不小于0.07L/s。
4.4 淋浴器用水效率等级
在(0.10±0.01)MPa动压下,依据表1判定该淋浴器的用水效率等级,此用水效率等级不应低于
该淋浴器的额定用水效率等级。
表1 淋浴器用水效率等级指标
用水效率等级 1级 2级 3级
流量/(L/s) 0.08 0.12 0.15
4.5 淋浴器用水效率限定值
淋浴器用水效率限定值为用水效率等级的3级。
4.6 淋浴器节水评价值
淋浴器节水评价值为用水效率等级的2级。
5 试验方法
5.1 流量均匀性测试
流量均匀性(ΔF)测试分别在(0.10±0.01)MPa,(0.20±0.01)MPa和(0.30±0.01)MPa动压下
各测试3次,分别计算平均值,并计算最高平均流量与最低平均流量之差。
在(0.10±0.01)MPa测试3次的流量分别为f11、f12、f13,平均值为F1=(f11+f12+f13)/3;
在(0.20±0.01)MPa测试3次的流量分别为f21、f22、f23,平均值为F2=(f21+f22+f23)/3;
在(0.30±0.01)MPa测试3次的流量分别为f31、f32、f33,平均值为F3=(f31+f32+f33)/3;
其平均值最大值为Fmax(以实际的最大值),其平均值最小值为Fmin(以实际的最小值);
淋浴器流量均匀性及流量测试装置应满足图1的规定。
图1 流量试验装置示例
5.2 流量测试
产品与管径15mm的供水管道连接成使用状态,用冷水进行试验,冷水温度≤30℃,开启淋浴阀
调整动态压力为0.1MPa±0.01MPa,形成稳定连续的水流,根据以下要求测量相应流量。
a) 单柄单控淋浴阀,将手柄开启到最大位置;
b) 双柄双控淋浴阀,分别将手柄开启到冷、热水最大位置,取流量的最大值;
c) 单柄双控淋浴阀,手柄分别开启到冷、热水开启至最大位置以及混合水最大位置(即中间位),
取流量的最大值。
生产厂家应根据本标准的要求和测试结果,确定产品的流量和额定用水效率等级,产品、出厂说明
书及包装上注明该产品的流量、额定用水效率等级、所依据的标准号。

GB 28378-2012
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.060
Y 71
Minimum Allowable Values of Water Efficiency
and Water Efficiency Grades for Showers
淋浴器用水效率限定值及用水效率等级
ISSUED ON. APRIL 1, 2012
IMPLEMENTED ON. APRIL 1, 2013
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Technical Requirements ... 5
5 Test Methods ... 6
6 Instructions for Water Efficiency Grades ... 7
Foreword
The Clause 4.2, 4.3 and 4.5 in this Standard are mandatory, while the rest are
recommended.
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard was proposed by Ministry of Water Resources of National Development
and Reform Commission.
This Standard shall be under the jurisdiction of Subcommittee on Water Efficiency of
Water-Using Products and Appliances of National Technical Committee for
Standardization of Industrial Water Conservation (SAC/TC 442/SC 1).
Drafting organizations of this Standard. National Center for Supervision & Inspection
of Drainage Irrigation & Water-Saving, China National Institute of Standardization,
Shenluda Group Co., Ltd., Jomoo Group Co., Ltd., Brilliant Plumbing Group Co., Ltd.,
Joyou Group Co., Ltd., Lejia Sanitary Equipment (Foshan) Co., Ltd., Hecheng (China)
Co., Ltd., Fujian Fuquan Group Co., Ltd., Chaoan Konna Sanitary Wares Co., Ltd.,
Guangdong Chaozhou Mengjia Ceramics Industry Co., Ltd., Guangdong Oumer
Industrial and Commercial Co., Ltd., Chaozhou Muye Ceramics Manufacture Co., Ltd.,
Chaozhou Uncommon Craft Industrial Co., Ltd., Chaoan Pengwang Ceramic Industrial
Co., Ltd., Chaoan Oubeier Sanitary Ware Co., Ltd., Guangdong Oulu Sanitary Ware
Co., Ltd., Heshan Kangliyuan Sanitary Ware Industry Co., Ltd., CAE Sanitary Fittings
Industry Co., Ltd., Foshan City Faenza Sanitary Ware Co., Ltd., Kaiping City Jinhuifeng
Industrial Co., Ltd., Hefei Royalstar Electronic Appliances Co., Ltd., Fujian Provincial
Central Testing Institute, and Shanghai Institute of Quality Inspection and Technical
Research.
Chief drafting staffs of this Standard. Zhu Shuangsi, Bai Xue, Zhu Chunyan, Hong
Jiancheng, Lin Xiaofa, Weng Xianmin, Jin Minghong, Cheng Xiaomin, Zheng Aifen,
Zhu Yijun, Tang Minjun, Wang Jianye, Cai Jianshe, Peng Yiqun, Shao Zeliang, Hong
Jinfu, Chen Shuding, Su Xibo, Chen Keping, Huang Lihui, Zheng Xibiao, Su Shuzhou,
Chen Shaowei, Chen Fangqing, Huang Jiyuan, Huang Zhenhuai, Yan Bangping, Liu
Yaqing, and Pan Baochun.
Minimum Allowable Values of Water Efficiency
and Water Efficiency Grades for Showers
1 Scope
This Standard specifies the minimum allowable values of water efficiency, water-saving
evaluation values, water efficiency grades, technical requirements and test methods
for showers.
This Standard is applicable to the shower with nominal pressure no greater than
1.0MPa, water medium temperature no greater than 90°C, installed in the washroom
(toilet, bathroom), shower room and other sanitary facilities.
This Standard is not applicable to the shower with its own heating device.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 8170-2008 Rules of Rounding off for Numerical Values & Expression and
Judgement of Limiting Values
3 Terms and Definitions
The following terms and definitions are applicable to this document.
The showering apparatus consists of valve body, sprinkler, connecting pipe and other
components.
3.2 Difference among flow rates
Under the specified dynamic pressure, the difference between the maximum average
flow rate and the minimum average flow rate.
3.3 Minimum allowable values of water efficiency for showers
The maximum allowable flow rate of shower.
3.4 Water efficiency grades for showers
It is confirmed as per the difference among flow rates and flow rate values, can be
water efficiency, while the Grade-3 indicates the minimum allowable values of water
efficiency.
3.5 Rated water efficiency grade
When the shower leaves the factory, the manufacturer indicates the water efficiency
grade for the shower according to the provisions of this Standard.
4 Technical Requirements
4.1 Basic requirements
Shower shall meet the express requirements of the product. This Standard data
judgment adopts the rounding off comparison method; the rounding off of the numerical
rounding off is consistent with the digits of the aforementioned minimum allowable
values.
4.2 Difference among flow rates
Under the dynamic pressures of (0.10±0.01) MPa, (0.20±0.01) MPa and (0.30±0.01)
MPa, the difference among flow rates is no greater than 0.10L/s.
4.3 Minimum flow rate
Under the dynamic pressure of (0.30±0.01) MPa, the flow rate shall be no less than
0.07L/s.
4.4 Water efficiency grades for showers
showers shall be judged as per Table 1; such water efficiency grade shall be no less
than the rated water efficiency for showers.
Table 1 -- Water Efficiency Grade Indexes for Showers
Water Efficiency Grades Grade-1 Grade-2 Grade-3
Flow rate / (L/s) 0.08 0.12 0.15
4.5 Minimum allowable values of water efficiency for showers
The minimum allowable values of water efficiency for showers indicate the Grade-3
water efficiency.
4.6 Water-saving evaluation values for showers
5 Test Methods
5.1 Test on difference among flow rates
The test on difference among flow rates (ΔF) shall be respectively performed for 3
times under the dynamic pressures of (0.10±0.01) MPa, (0.20±0.01) MPa and
(0.30±0.01) MPa; respectively calculate their average values; and calculate the
difference between the maximum average flow rate and minimum average flow rate.
3 times flow rates tested under (0.10±0.01) MPa are f11, f12, f13; average value of
F1=(f11+f12+f13)/3;
3 times flow rates tested under (0.20±0.01) MPa are f21, f22, f23; average value of
3 times flow rates tested under (0.30±0.01) MPa are f31, f32, f33; average value of
F13=(f31+f32+f33)/3;
The maximum average value Fmax (by the actual maximum value), and the minim
average value Fmin (by the actual minimum value).
Difference among flow rates ΔF = Fmax – Fmin.
The difference among flow rates and flow rate testing device for shower shall conform
to the provisions of Figure 1.
Figure 1 -- Flow Rate Testing Device Example
Flowmeter
Sample
Pressure
source
Water-supply straight pipe no
less than 300mm
5.2 Flow rate test
The product is connected to the water-supply pipe with diameter 15mm, and formed
the using state; test it by cold water, cold water temperature ≤30°C; start the shower
valve and adjust the dynamic pressure to be 0.1MPa±0.01MPa, form stable and
requirements.
a) For the single-valve single-control shower valve, adjust the handle to the
maximum position;
b) For the dual-handle dual-control shower valve, adjust the handle to the maximum
hot & cold-water positions; take the maximum flow rate value;
c) For the single-handle dual-control shower valve, adjust he handle to the maximum
hot & cold water positions, and the maximum mixed water positions (i.e. in the
middle); take the maximum flow rate value.
6 Instructions for Water Efficiency Grades
according to the requirements of this Standard and test results; the product flow rate,
rated water efficiency grade, and standard number shall be indicated on the product,
in the exit-factory instructions, and on the package.
   
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