GB18351-2025

Ethanol gasoline for motor vehicles

车用乙醇汽油

GB 18351-2025 é uma norma nacional chinesa obrigatória que entrará em vigor: Ethanol gasoline for motor vehicles. Setor: Automotivo. Foco: Segurança de produtos. Entrada em vigor: 1 de jul. de 2026.

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 ethanol gasoline for motor vehicles (E10) produced, sold, and used within the Chinese market. It specifically targets fuel blended from denatured fuel ethanol and gasoline blendstocks without oxygenates, categorized into four grades based on Research Octane Number: 89, 92, 95, and 98. This standard is mandatory for all fuel blenders and distributors involved in the E10 ethanol gasoline market in China.

Requisitos técnicos

GB 18351-2025 establishes the detailed technical specifications for ethanol gasoline for motor vehicles (E10), replacing the previous 2017 version. It introduces significant updates, including the removal of outdated Stage V and Stage VIA requirements, transitioning fully to the Stage VIB limits. The standard dictates critical parameters such as antiknock properties, distillation characteristics, and seasonal vapor pressure limits. It also enforces strict controls on harmful substances, setting rigid thresholds for sulfur content, benzene, aromatics, and olefins. Manufacturers must ensure no artificial addition of lead, iron, manganese, methylal, anilines, or compounds containing halogens, phosphorus, and silicon. A key update from the previous version is the introduction of new technical requirements for silicon content, chlorine content, and total aniline compounds. The standard also revises the testing and arbitration methods for sulfur, lead, iron, and manganese content, ensuring more robust quality control and dispute resolution.

Métodos de ensaio

The standard outlines a comprehensive suite of testing protocols, referencing numerous national (GB/T) and industry (SH/T, NB/SH/T) standards. Key evaluations include determining antiknock index via research and motor methods, measuring vapor pressure using the Reid method, and analyzing sulfur content through ultraviolet fluorescence. Specific arbitration methods are strictly designated in case of disputes, such as using GB/T 8020 for lead content and GB/T 34100 for sulfur content. Advanced analytical techniques like gas chromatography and X-ray fluorescence spectrometry are mandated for detecting trace metals and organic oxygenates.

Perguntas frequentes

What products are regulated under GB 18351-2025?

It regulates ethanol gasoline for motor vehicles (E10), specifically fuel blended from denatured fuel ethanol and gasoline blendstocks, available in grades 89, 92, 95, and 98.

What are the main updates in GB 18351-2025 compared to the 2017 version?

Major updates include the deletion of Stage V and VIA requirements, changes to vapor pressure and sulfur testing methods, and the addition of new limits for silicon content, chlorine content, and total aniline compounds. The new standard mandates a transition to Stage VIB specifications.

When do the new limits for silicon, chlorine, and aniline compounds take effect?

According to the standard's implementation clause, the provisions for silicon content, chlorine content, methylal content, and total aniline compounds will be enforced starting from the 13th month after the standard's implementation date (2026-07-01).

The summary above provides a high-level overview of GB 18351-2025. 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 18351-2025 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: 31
ICS: 75.160.20
Órgão competente: National Energy Administration
Comitê técnico: National Energy Administration

Relações

Substitui:GB 18351-2017 (Vigente)