GB26569-2011

Civil coalbed methane (coal mine gas)

民用煤层气（煤矿瓦斯）

GB 26569-2011 é uma norma nacional chinesa obrigatória vigente: Civil coalbed methane (coal mine gas). Setor: Máquinas. Foco: Segurança de produtos. Entrada em vigor: 1 de nov. de 2011.

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 civil coalbed methane (coal mine gas) used for residential and commercial fuel applications. It specifies the quality requirements, testing, and transportation guidelines for gas extracted during coal mining operations. It is not applicable to non-civil or industrial-grade coalbed methane.

Requisitos técnicos

The standard categorizes civil coalbed methane into four classes (Class I to IV) based on methane content and gross calorific value. The methane content must not be lower than 30% for any class. It also sets strict limits on *total sulfur content* and *hydrogen sulfide content* to ensure safety and environmental compliance. Additionally, the standard mandates specific water dew point requirements under delivery pressure and temperature conditions. Odorants must be added to the gas supplied for residential use to ensure detectability in case of leaks. The standard also references *GB 50028* and *GB 50251* for pipeline transportation and storage, with specific pressure limits for Class III and IV gases.

Métodos de ensaio

The standard outlines testing procedures using referenced methods such as gas chromatography (*GB/T 13610*) for methane content, calorific value determination (*GB/T 12206* or *GB/T 11062*), and various methods for sulfur and hydrogen sulfide content analysis. Water dew point is measured according to *GB/T 17283*.

Perguntas frequentes

What products are regulated under GB 26569-2011?

It regulates civil coalbed methane (coal mine gas) used for residential and commercial fuel purposes.

Are there any mandatory clauses in GB 26569-2011?

Yes, Clause 4.1 regarding the minimum methane content and Clause 6.3 regarding the determination of product conformity are mandatory.

Were there any updates to the standard?

Yes, a modification sheet (No. 1) was approved in 2015, updating the gross calorific value indicators for the different gas classes.

The summary above provides a high-level overview of GB 26569-2011. 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 26569-2011 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: D20
ICS: 75.160
Órgão competente: National Mine Safety Administration
Comitê técnico: National Mine Safety Administration

Relações

Substituída por:GB 26569-2026 (Futura)