GB11174-2025

Liquefied petroleum gases

液化石油气

GB 11174-2025 es una norma nacional china obligatoria de próxima entrada en vigor: Liquefied petroleum gases. Sector: Química. Enfoque: Eficiencia energética. Entrada en vigor: 1 nov 2026.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies to liquefied petroleum gases (LPG) produced by refineries and oil/gas fields, intended for use as industrial fuel, civil fuel, and automotive fuel. It is mandatory for all manufacturers and suppliers of LPG in the Chinese market. The standard covers product classification, technical requirements, testing methods, and inspection rules for both industrial/civil LPG and automotive LPG.

Requisitos técnicos

GB 11174-2025 specifies the technical requirements for LPG, categorized into industrial and civil LPG and automotive LPG. For industrial and civil LPG, the standard defines requirements for three product types: commercial propane, commercial butane, and commercial propane-butane mixtures. Key parameters include density, vapor pressure, component volume fractions (such as C3, C4, and C5+ hydrocarbons), and limits for 1,3-butadiene and dimethyl ether. The standard strictly prohibits the artificial addition of non-hydrocarbon compounds except for odorants. For automotive LPG, the standard classifies products into five grades (-10, -5, 0, 10, 20) based on the minimum temperature at which the vapor pressure reaches 200 kPa. Technical requirements cover motor octane number (MON), diene mass fraction, propane mass fraction, and strict limits on sulfur content and hydrogen sulfide. The standard also mandates that terminal LPG must have a detectable odor, requiring the addition of odorants if the natural smell is insufficient.

Métodos de ensayo

The standard outlines various testing methods to verify compliance. Vapor pressure is determined using the LPG method detailed in Appendix E or calculated via ISO 8973. Hydrocarbon composition, dimethyl ether, and sulfur compounds like hydrogen sulfide and ethanethiol are measured using gas chromatography (referencing NB/SH/T 0230 or Appendix B). Motor octane number is calculated based on composition using the method in Appendix F. Additionally, odor testing is conducted by diluting gasified LPG with purified air to 20% of its lower explosive limit and evaluated by human testers, as specified in Appendix G.

Preguntas frecuentes

What products are regulated under GB 11174-2025?

GB 11174-2025 regulates liquefied petroleum gases (LPG) used as industrial fuel, civil fuel, and automotive fuel. It covers commercial propane, commercial butane, propane-butane mixtures, and five grades of automotive LPG.

Are there any updates from the previous version of GB 11174?

Yes, GB 11174-2025 replaces GB 11174-2011 and GB 19159-2012. Key updates include the addition of 1,3-butadiene and dimethyl ether limits, changes to sulfur content indicators, revised testing methods for hydrogen sulfide, and new requirements for odorants and sampling procedures.

How does GB 11174-2025 handle odorants in LPG?

The standard requires that terminal LPG must have a detectable odor. If the natural odor is insufficient, odorants (typically sulfur-based compounds like ethanethiol) must be added. The recommended ethanethiol content is at least 30 mg/kg to ensure safety.

The summary above provides a high-level overview of GB 11174-2025. To ensure complete compliance for your LPG 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 11174-2025 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Producto
CCS: E 46
ICS: 75.160.30
Organismo competente: National Energy Administration
Comité técnico: National Technical Committee on Petroleum Products and Lubricants of Standardization Administration of China

Relaciones

Sustituye a:GB 11174-2011 (Vigente) , GB 19159-2012 (Vigente)