GB17820-2018

Natural gas

天然气

GB 17820-2018 est une norme nationale chinoise obligatoire en vigueur : Natural gas. Secteur : Environnement. Thème principal : Efficacité énergétique. Entrée en vigueur : 1 juin 2019.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

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.

Exigences techniques

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.

Méthodes d’essai

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.

Questions fréquentes

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.

Indications d’applicabilité

Type: Produit
CCS: E24
ICS: 75.060
Autorité compétente: National Energy Administration
Comité technique: National Energy Administration

Relations

Remplace:GB 17820-2012