GB2626-2019

Respiratory protection—Non-powered air-purifying particle respirator

呼吸防护自吸过滤式防颗粒物呼吸器

GB 2626-2019 é uma norma nacional chinesa obrigatória vigente: Respiratory protection—Non-powered air-purifying particle respirator. Setor: Médico. Foco: Segurança de produtos. Entrada em vigor: 1 de jul. 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 non-powered air-purifying particle respirators designed to protect against airborne particulates. It covers various facepiece types, including disposable facepieces, replaceable half facepieces, and full facepieces. This standard is not applicable to respiratory protective equipment designed for harmful gases and vapors, oxygen-deficient environments, underwater operations, escape, or firefighting. Manufacturers of particle respirators targeting the Chinese market must ensure their products comply with these regulations.

Requisitos técnicos

The standard classifies filter elements into KN (for non-oily particles) and KP (for oily and non-oily particles) categories, with efficiency levels of 90, 95, and 100. It mandates strict physical and chemical performance criteria, including minimum filter efficiency limits under continuous loading conditions. Manufacturers must ensure that materials in contact with the skin are harmless and possess sufficient structural strength to prevent deformation during normal use. The standard also sets specific limits for breathing resistance (inhalation and exhalation), total inward leakage (TIL), and inward leakage (IL) based on the facepiece category and filter class. Additionally, it outlines requirements for dead space, field of vision, headband strength, and exhalation valve protection. For products claiming flame resistance, components must self-extinguish within a specified timeframe after flame exposure. Practical performance evaluation through human subject testing is also a newly introduced requirement.

Métodos de ensaio

The standard details rigorous testing procedures, including temperature and humidity pretreatment and mechanical strength pretreatment to simulate aging. Filter efficiency is tested using specific aerosols like NaCl for KN classes and DOP or equivalent oils for KP classes, with continuous loading to determine minimum efficiency. Leakage is evaluated using a human subject test chamber with specific head movements. Testing also encompasses breathing resistance via a standard headform, exhalation valve leakage rates, dead space CO2 volume fraction, and field of vision measurements. Material strength is verified through axial pull tests on headbands, connections, and exhalation valve guards.

Perguntas frequentes

What products are regulated under GB 2626-2019?

It regulates non-powered air-purifying particle respirators, including disposable facepieces, replaceable half facepieces, and full facepieces. It does not apply to respirators for harmful gases and vapors, or for oxygen-deficient, underwater, escape, and firefighting environments.

Are there any updates from the previous version of GB 2626?

The 2019 version modifies the inhalation and exhalation resistance requirements, updates exhalation valve tightness testing, adds practical performance requirements, and introduces new testing parameters for filter efficiency loading endpoints and particle size conversion methods.

How does GB 2626-2019 differ from international respirator standards?

GB 2626-2019 is a mandatory Chinese national standard with specific classifications (KN/KP) and testing methodologies tailored for the Chinese market. While it shares similarities with international standards like EN 149 or NIOSH protocols, manufacturers must specifically comply with GB 2626 testing and labeling requirements to legally sell in China.

The summary above provides a high-level overview of GB 2626-2019. 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 2626-2019 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: C73
ICS: 13.340.30
Órgão competente: Ministry of Emergency Management
Comitê técnico: National Technical Committee on Personal Protective Equipment of Standardization Administration of China

Relações

Substitui:GB 2626-2006