GB 6376-2025Tractors - Limits of emitted noise (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB 6376-2008 "Tractor Noise Limits". Compared with GB 6376-2008, except for structural adjustments and editorial changes... Aside from the changes, the main technical changes are as follows:

a) The correspondence between noise limits for tractor cab type and power rating has been changed (see Table 1,.2008 version of Table 1);

b) Noise limits for wheeled tractors and tracked tractors have been changed (see Table 1,.2008 edition of Table 1);

c) Noise limits for boat-type tractors have been increased (see Table 1);

d) The static environmental noise limits for tractors have been removed (see Table 1 in the.2008 edition);

e) The method for measuring tractor noise has been changed (see Chapter 5,

3.2 of the.2008 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the Ministry of Industry and Information Technology of the People's Republic of China. This document was first published in 1986, revised for the first time in.1995, revised for the second time in.2008, and this is the third revision.

With the advancement of technology and the increasing emphasis on environmental and human health, controlling tractor noise has become an essential aspect of environmental protection. An important measure to protect drivers' hearing. When setting noise limits, environmental protection needs, driver hearing safety, and the domestic tractor production capacity must be considered. The technical level of the products, etc. At the same time, given the advancements in technology, particularly in noise control, tractors are committed to achieving the highest standards in their design and manufacturing processes. To minimize noise emissions and mitigate potential impacts on the environment and human health, noise control should be fully assessed during the tractor design phase. Feasible solutions and technical means. Tractor noise limits

1 Scope

GB 6376-2025 is the Chinese national standard on tractors - limits of emitted noise, in the field of agriculture. It carries no /T suffix, which in the Chinese system means compliance is mandatory: a product or a practice within its scope has to meet it to be lawfully made, sold or carried out in China. It was issued on 31 October 2025 by the State Administration for Market Regulation; Standardization Administration of China, and takes effect on 1 November 2026. Classification: ICS 65.060.10, CCS T 60. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This document specifies the limits for dynamic ambient noise of tractors and noise levels at the driver's operating position (near the ear). This document applies to wheeled tractors, tracked tractors, walking tractors, and boat tractors.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB/T 3871.8 Agricultural Tractor Test Procedures Part

3 Terms and Definitions

The terms and definitions defined in GB/T 6960.1 and GB/T 6960.7 apply to this document.

4.Noise Limits The dynamic environmental noise of the tractor and the noise at the driver's operating position (near the ear) should meet the requirements of Table 1.

5.Test Methods Noise measurement of hand-held tractors shall be conducted in accordance with the provisions of GB/T 6229; dynamic environmental noise measurement of wheeled, tracked, and boat-type tractors shall be conducted in accordance with... The noise measurement at the driver's operating position (near the ear) of wheeled, tracked, and boat-type tractors shall be conducted in accordance with the provisions of GB/T 41971.8. It shall be conducted in accordance with the regulations. Table

1 Noise Limits for Tractors type Rated power (P) kW Dynamic environmental noise dB(A) Noise at the driver's operating position (near the ear) dB(A) No driver's cab Has a driver's cab Enclosed driver's cab and other Wheeled tractor belt drive P<=14.3 86 95 14.3 < P < 18.0 87 96 P>=18.0 88 97

7 Cab, Seat and Covers

GB/T 41971 Measurement of Dynamic Noise from Agricultural and Forestry Tractors

8 Noise Measurement

GB/T 6229 Test Methods for Hand Tractors

GB/T 6960.1 Tractor Terminology Part