GB6376-2025
Tractors—Limits of emitted noise
拖拉机 噪声限值
GB 6376-2025 is an upcoming mandatory Chinese national standard for Tractors—Limits of emitted noise. It appears in the Electronics compliance cluster with a testing methods focus and has an implementation date of Nov 1, 2026.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the regulation of dynamic environmental noise and operator position noise (ear-level) for various agricultural and industrial tractors. Specifically, it covers wheeled tractors, crawler tractors, walking tractors, and boat-type tractors. It is mandatory for all manufacturers producing or importing these tractor types into the Chinese market. The standard does not apply to static environmental noise, as this metric was removed in the latest revision.
Technical requirements
GB 6376-2025 establishes strict noise emission limits categorized by tractor type, transmission mode (e.g., belt drive vs. direct drive), and rated power (P in kW). The standard evaluates two primary noise metrics: dynamic environmental noise and operator ear-position noise. For operator position noise, the limits are further differentiated based on the presence and type of a cab. Categories include no cab, enclosed cab, and other cab types. Manufacturers must ensure their products meet the specific dB(A) limits assigned to their tractor's power tier and cab configuration. A notable update in this 2025 edition is the inclusion of boat-type tractors (both three-wheel and four-wheel configurations) and the exclusion of static environmental noise testing. Additionally, for certain specialized equipment like metallic crawler tractors, the dynamic environmental noise requirement is exempted, focusing compliance solely on operator hearing protection.
Testing methods
The standard mandates specific testing procedures based on the tractor category. Noise measurement for walking tractors must be conducted according to GB/T 6229. For wheeled, crawler, and boat-type tractors, dynamic environmental noise is measured following GB/T 41971, while the operator position noise evaluation follows GB/T 3871.8. Manufacturers must refer to these referenced testing standards to ensure accurate compliance verification.
FAQs
What products are regulated under GB 6376-2025?
This standard regulates the noise emissions of wheeled tractors, crawler tractors, walking tractors, and boat-type tractors. It is mandatory for all these tractor types manufactured or sold in China.
Are there any significant updates from the previous version of GB 6376?
Yes, compared to the 2008 version, this edition has updated the noise limits for wheeled and crawler tractors, added specific limits for boat-type tractors, and removed the requirements for static environmental noise. The measurement methods have also been comprehensively updated.
How does GB 6376-2025 handle noise measurement procedures?
The standard references Chinese national testing methodologies rather than ISO standards directly. For example, it mandates the use of GB/T 41971 for dynamic environmental noise measurement. Manufacturers must ensure compliance is verified using these specific Chinese test procedures.
The summary above provides a high-level overview of GB 6376-2025. To ensure complete compliance for your tractors entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 6376-2025 today to access all detailed parameter tables, power thresholds, and testing procedures.
Applicability hints
- Type
- Environmental protection
- CCS
- T 60
- ICS
- 65.060.10
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- National Technical Committee on Tractors of Standardization Administration of China
Relationships
Replaces:GB 6376-2008 (Current)