GB28377-2019

Minimum allowable values of water efficiency and water efficiency grades for urinals

小便器水效限定值及水效等级

GB 28377-2019 é uma norma nacional chinesa obrigatória vigente: Minimum allowable values of water efficiency and water efficiency grades for urinals. Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de jan. de 2021.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to various types of urinals (excluding waterless urinals) installed on cold water supply pipelines in building facilities, operating under a static water pressure not exceeding 0.6 MPa. It is mandatory for evaluating the water efficiency of these products. It references terms defined in GB/T 9195.

Requisitos técnicos

The standard classifies water efficiency grades for urinals into three levels, with Grade 1 being the most efficient and Grade 3 being the minimum allowable value. Manufacturers must ensure their products meet at least Grade 3 requirements to enter the market. It also specifies the water-saving evaluating value as Grade 2. Additionally, the standard outlines functional requirements including washing function, sewage replacement function, and water seal depth for urinals with an integral trap. Compliance with these functional metrics is essential for overall certification.

Métodos de ensaio

Testing procedures are detailed in the normative appendix and include the average water consumption test conducted under specific static pressures (0.17 MPa and 0.55 MPa). It also covers the washing function test using ink lines, the sewage replacement test using methylene blue solution, and various trap tests such as water seal depth and recovery. These tests must be performed using a standardized supply system.

Perguntas frequentes

What products are regulated under GB 28377-2019?

It regulates various types of urinals installed in building facilities, excluding waterless urinals, operating under a static pressure of 0.6 MPa or less.

What is the minimum allowable water efficiency grade?

The minimum allowable value corresponds to Grade 3. Products must meet this threshold to be compliant. The water-saving evaluating value is Grade 2.

Are there any updates from the previous version of GB 28377-2012?

Yes, the 2019 version modifies the scope, some terms, basic requirements, and water efficiency grade indicators. It also adds flushing function requirements and a calculation formula for average water consumption.

The summary above provides a high-level overview of GB 28377-2019. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 28377-2019 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: Q31
ICS: 91.140.70
Órgão competente: Standardization Administration of China
Comitê técnico: National Technical Committee on Water Conservation of Standardization Administration of China

Relações

Substitui:GB 28377-2012