GB1788-1979

Jet fuel No.2

2号喷气燃料

GB 1788-1979 est une norme nationale chinoise obligatoire en vigueur : Jet fuel No.2. Secteur : Environnement. Thème principal : Efficacité énergétique. Entrée en vigueur : 1 juil. 1980.

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 applies to No. 2 Jet Fuel (coded as RP-2) processed from natural crude oil. It is intended for use in aviation turbine engines. This standard is mandatory for manufacturers producing jet fuel for the Chinese aviation market. It does not apply to synthetic or alternative aviation fuels not derived from natural crude oil.

Exigences techniques

The standard specifies the physical and chemical properties required for No. 2 Jet Fuel. Key parameters include density limits at 20°C, distillation characteristics (initial boiling point, 10%, 50%, 90%, and 98% distillation temperatures), and flash point (closed cup) to ensure safety. It also defines kinematic viscosity requirements at both 20°C and -40°C, along with a strict crystallization point to ensure low-temperature fluidity. Chemical composition constraints include limits on aromatic hydrocarbon content, iodine value, acidity, and total sulfur content, particularly mercaptan sulfur. Combustion performance is evaluated through smoke point, naphthalene hydrocarbon content, or luminometer value. The standard also sets maximum limits for net heat value, ensuring sufficient energy density. Corrosion prevention is addressed via copper strip corrosion and silver strip corrosion tests. Manufacturers must ensure the fuel is free from water-soluble acids, alkalis, mechanical impurities, and water. Additives to improve fuel quality are permitted under specific regulations.

Méthodes d’essai

Testing methods referenced include various Chinese petroleum industry standards (SY) and national standards (GB) for determining density (SY 2206-76), distillation (GB 255-77), flash point (GB 261-77), and kinematic viscosity (GB 265-75). Other tests cover crystallization point (SY 2204-76), aromatic content (SY 2115-77), sulfur content (GB 380-77), and combustion performance (GB 382-77). Water reaction is tested according to GB 1793-79.

Questions fréquentes

What products are regulated under GB 1788-1979?

GB 1788-1979 regulates No. 2 Jet Fuel (RP-2) derived from natural crude oil, used primarily in aviation turbine engines.

Are there any updates from the previous version of GB 1788-1979?

Yes, a modification sheet (No. 1) was issued in 1988. It updated the units for density to kg/m³ and net heat value to MJ/kg, and revised the copper strip corrosion test parameters.

Does GB 1788-1979 allow the use of additives?

Yes, the standard permits the addition of various additives, either individually or in combination, to improve or enhance the quality of the jet fuel, provided the type and amount comply with specific regulations.

The summary above provides a high-level overview of GB 1788-1979. 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 1788-1979 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Produit
CCS: E31
ICS: 75.160.20
Autorité compétente: National Energy Administration
Comité technique: National Energy Administration