GB19997-2025

Harvesting machinery—Noise limits

收获机械噪声限值

GB 19997-2025 est une norme nationale chinoise obligatoire à venir : Harvesting machinery—Noise limits. Secteur : Électronique. Thème principal : Sécurité des produits. Entrée en vigueur : 1 nov. 2026.

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 is mandatory and applies to self-propelled combine harvesters, corn harvesters, forage harvesters, cotton harvesters, and sugarcane combine harvesters. It specifically regulates dynamic environmental noise and operator ear-level noise limits based on engine power and cab types. Manufacturers must ensure their agricultural machinery complies with these limits before entering the Chinese market. It does not apply to machinery outside these specified categories.

Exigences techniques

The standard establishes strict noise emission limits categorized by the machinery's engine power rating (in kW) and the type of operator cab installed. It defines three primary cab configurations: enclosed operation cabs, general operation cabs, and simple or non-cab setups. Compliance with the specified dB(A) limits for both dynamic environmental noise and operator ear-level noise is legally required. A significant technical update in this version is the introduction of specific noise limits for machinery equipped with single-cylinder engines, alongside updated tiers for multi-cylinder engines. The standard also enforces structural requirements; for instance, high-power machinery must be equipped with enclosed cabs, while low-power machinery is restricted from using them. Engineers must verify the exact power tier and cab configuration to determine the applicable limit.

Méthodes d’essai

Noise measurement procedures must be conducted in accordance with the referenced industry standard JB/T 6268, which dictates the methodology for measuring self-propelled harvesting machinery noise. The testing evaluates the A-weighted sound pressure levels during dynamic operation for environmental noise and at the operator's ear position. Accurate testing requires strict adherence to the operational conditions specified in the referenced standard.

Questions fréquentes

What products are regulated under GB 19997-2025?

The standard applies to self-propelled combine harvesters, corn harvesters, forage harvesters, cotton harvesters, and sugarcane combine harvesters equipped with various engine types and cab configurations.

Are there any updates from the previous version of GB 19997-2025?

The 2025 revision updates the engine power tier classifications, modifies the noise limits for existing categories, and introduces new noise limits specifically for harvesting machinery equipped with single-cylinder engines.

How does GB 19997-2025 differ from international ISO standards?

GB 19997-2025 is a mandatory national standard specifying strict dB(A) limits for the Chinese market. It references the industry standard JB/T 6268 for its specific measurement procedures, meaning compliance requires meeting both the strict limits and the prescribed Chinese testing methodology.

The summary above provides a high-level overview of GB 19997-2025. To ensure complete compliance for your harvesting machinery entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 19997-2025 today to access all detailed parameter tables, specific dB(A) limits, and testing procedures.

Indications d’applicabilité

Type: Sécurité
CCS: B91
ICS: 65.060.50
Autorité compétente: Ministry of Industry and Information Technology
Comité technique: National Technical Committee on Agricultural Machinery of Standardization Administration of China

Relations

Remplace:GB 19997-2005 (En vigueur)