GB17820-2018

Natural gas

天然气

GB 17820-2018 é uma norma nacional chinesa obrigatória vigente: Natural gas. Setor: Meio ambiente. Foco: Eficiência energética. Entrada em vigor: 1 de jun. de 2019.

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 specifies the quality requirements, testing methods, and inspection rules for commercial natural gas. It applies exclusively to treated natural gas transported through pipelines. Compliance with this standard is mandatory for all natural gas entering long-distance transmission pipelines. It does not apply to untreated wellhead gas or non-pipeline transported gas.

Requisitos técnicos

The standard classifies natural gas into two categories based on specific quality parameters: Class 1 and Class 2. The core technical requirements regulate the limits for gross calorific value, total sulfur, hydrogen sulfide, and carbon dioxide content. Natural gas entering long-distance pipelines must strictly meet the Class 1 quality requirements. Additionally, the standard mandates that at the custody transfer point's pressure and temperature conditions, the gas must not contain liquid water or liquid hydrocarbons. For civil gas applications, the standard references interchangeability requirements as specified in GB/Z 33440.

Métodos de ensaio

GB 17820-2018 outlines specific testing methodologies by referencing various national standards. The determination of sulfur compounds, including total sulfur and hydrogen sulfide, is conducted using methods from the GB/T 11060 series. The calculation of gross calorific value relies on compositional analysis performed according to GB/T 13610 or GB/T 27894. For arbitration purposes, specific primary testing methods are designated for each parameter. Sampling procedures must follow GB/T 13609 or GB/T 30490 at the agreed custody transfer point.

Perguntas frequentes

What products are regulated under GB 17820-2018?

This standard regulates treated commercial natural gas that is transported through pipelines. It is mandatory for gas entering long-distance transmission pipelines.

Is GB 17820-2018 a mandatory standard?

Yes, all technical content within GB 17820-2018 is mandatory. Manufacturers and suppliers must comply with the specified quality limits for Class 1 and Class 2 gas.

What are the key quality parameters specified in this standard?

The standard sets limits for gross calorific value, total sulfur, hydrogen sulfide, and carbon dioxide. It also requires the absence of liquid water and hydrocarbons at transfer conditions, referencing GB/Z 33440 for interchangeability.

The summary above provides a high-level overview of GB 17820-2018. To ensure complete compliance for your natural gas 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 17820-2018 today to access all detailed parameter tables, specific limit values, and comprehensive testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: E24
ICS: 75.060
Órgão competente: National Energy Administration
Comitê técnico: National Energy Administration

Relações

Substitui:GB 17820-2012