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GB/T 5390-2025: Noise test code for portable hand-held forestry and gardening machinery with internal combustion engine - Engineering method (Grade 2 accuracy) GB/T 5390: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5390-2025 | English | 754 |
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Noise test code for portable hand-held forestry and gardening machinery with internal combustion engine - Engineering method (Grade 2 accuracy)
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GB/T 5390-2025
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| GB/T 5390-2013 | English | 594 |
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Forestry and garden machinery -- Noise test code for portable hand-held machines with internal combustion engine -- Engineering method (Grade 2 accuracy)
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GB/T 5390-2013
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| GB/T 5390-2008 | English | 879 |
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Forestry machinery -- Noise test code for portable hand-held machines with internal combustion engine -- Engineering method (Grade 2 accuracy)
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GB/T 5390-2008
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| GB/T 5390-1995 | English | 239 |
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Portable chain saws--Measurement at the operatorposition of air-borne noise
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GB/T 5390-1995
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| GB 5390-1985 | English | 199 |
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Gasoline powered chain saws--Measurement at the operatorposition of air-borne noise from chain saws
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GB 5390-1985
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Basic data | Standard ID | GB/T 5390-2025 (GB/T5390-2025) | | Description (Translated English) | Noise test code for portable hand-held forestry and gardening machinery with internal combustion engine - Engineering method (Grade 2 accuracy) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B95 | | Classification of International Standard | 65.060.80 | | Word Count Estimation | 38,312 | | Date of Issue | 2025-10-31 | | Date of Implementation | 2026-05-01 | | Older Standard (superseded by this standard) | GB/T 5390-2013 | | Issuing agency(ies) | State Administration for Market Regulation and Standardization Administration of China | GB/T 5390-2025: Noise test code for portable hand-held forestry and gardening machinery with internal combustion engine - Engineering method (Grade 2 accuracy)
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 65.060.80
CCSB95
National Standards of the People's Republic of China
Replaces GB/T 5390-2013
Portable handheld operation powered by internal combustion engine
Forestry and Garden Machinery Noise Measurement Standard
Engineering method (Level 2 accuracy)
Released on October 31, 2025; to be implemented on May 1, 2026.
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 2
4.Quantities to be measured and quantities to be determined 2.
5.Determination of A-weighted sound power level 2
6.Determination of A-weighted emitted sound pressure level at operator position 4
7.Test and operating conditions 5
8 Test Report 6
9.Noise emission value labeling and verification 8.
Appendix A (Normative) Measurement Conditions for Chainsaws (see Chapter 7) 9
Appendix B (Normative) Measurement Conditions for Brush Cutters, Lawn Mowers, and Trimmers (see Chapter 7) 12
Appendix C (Normative) Measurement Conditions for Bar-Type Power Pruning Saws (See Chapter 7) 17
Appendix D (Normative) Measurement Conditions for Hedge Trimmers (see Chapter 7) 21
Appendix E (Normative) Measurement Conditions. Hair dryer/vacuum blower/backpack sprayer (see Chapter 7) 24
Appendix F (Informative) Example 29.Hydraulic brake mounted on chainsaw guide plate to simulate sawing load
Appendix G (Informative). Summary of interlaboratory trials of chainsaws, brush cutters, and lawnmowers in.2007-2008.(30 pages)
Appendix H (Informative) Determination and labelling of A-weighted sound power level of outdoor machinery noise according to EU Directive.2000/14/EC
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/T 5390-2013 "Noise Measurement of Portable Hand-Operated Forestry and Garden Machinery Powered by Internal Combustion Engines".
The "Standardized Engineering Method (Level 2 Accuracy)" differs from GB/T 5390-2013 in that, apart from structural adjustments and editorial changes, its main technical changes are as follows.
as follows.
---The terms and definitions have been changed (see Chapter 3, Chapter 3 of the.2013 edition);
---The usage requirements for microphone windshields have been changed [see Chapter 5d), 6.1.c (Chapter 5d), 6.1.c in the.2013 edition)];
---The content of "Microphone Position Coordinates" has been changed (see Chapter 5, Chapter 5 of the.2013 edition);
---The content of "Noise Emission Value Labelling and Verification" has been revised (see Chapter 9, Chapter 9 of the.2013 edition);
---The transverse width of the timber used in the chainsaw test was changed from.200 mm ± 10 mm to 150 mm ± 10 mm.
(See A.1,.2013 edition of A.1);
---The test settings for the chainsaw have been changed (see Figure A.1, Figure A.1 from the.2013 version);
---The test settings for brush cutters and lawn mowers have been modified (see Figures B.1 to B.3, Figures B.1 to B.3 in the.2013 version);
---A noise measurement method for the trimming machine has been added (see Appendix B);
---The test setup for the lever-type powered pruning machine has been modified (see Figures C.1 and C.2, Figures C.1 and C.2 from the.2013 version);
---The test setup for the hedge trimmer has been modified (see Figures D.1 and D.2, Figures D.1 and D.2 from the.2013 version);
---The noise measurement method for backpack sprayers has been added, and the settings for machines with different air ducts have been changed (see Appendix E,.2013).
Appendix E of the.2008 edition);
---The test settings for the hair dryer/vacuum have been changed (see Figures E.1 to E.3, Figures E.1 to E.3 in the.2013 version).
This document is equivalent to ISO 22868.2021 "Noise of portable hand-operated forestry and garden machinery powered by internal combustion engines".
Determination of standard engineering method (Level 2 accuracy)
The following minimal editorial changes have been made to this document.
---To align with existing standards, the standard title has been changed to "Noise from Portable Hand-Operated Forestry and Garden Machinery Powered by Internal Combustion Engines".
Measurement Standard Engineering Method (Level 2 Accuracy)
---For ease of use of the standard, the unit of rotational speed in the entire text of ISO 22868.2021 has been converted from "s-1" to "r/min".
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 by the National Forestry and Grassland Administration.
This document is under the jurisdiction of the National Forestry Machinery Standardization Technical Committee (SAC/TC61).
This document was drafted by. Nanjing Quanfeng Technology Co., Ltd., Dekai Quality Certification (Shanghai) Co., Ltd., and Shandong Huasheng Agricultural Machinery & Pesticide Co., Ltd.
Limited Liability Company, Jiangsu Linhai Power Machinery Group Co., Ltd., Zhejiang Xinyuan Intelligent Equipment Group Co., Ltd., Zhejiang Haike Power Co., Ltd.
The company, and the Harbin Forestry Machinery Research Institute of the National Forestry and Grassland Administration.
The main drafters of this document are. Gao Yang, Zhang Haoran, Yang Majing, Liu Xiangfeng, Wang Qian, Ma Jun, Li Feng, Leng Yuehui, and Zhang Mingyuan.
This document was first published in 1985; revised for the first time in.1995; and revised for the second time in.2008, incorporating GB/T 14178-1993 "Cutting"
The "Method for Measuring Noise Near the Ear of Irrigation Machine Operators" was incorporated; it was revised for the third time in.2013; this is the fourth revision.
Portable handheld operation powered by internal combustion engine
Forestry and Garden Machinery Noise Measurement Standard
Engineering method (Level 2 accuracy)
Warning. Some of the test procedures specified in this document may lead to dangerous situations. Anyone conducting tests in accordance with this document should exercise caution.
Training in relevant job skills.
1 Scope
This document describes how to effectively determine common types of portable, handheld forestry and garden machinery powered by internal combustion engines under standardized conditions.
Standards for measuring noise emission characteristics, and for chainsaws, brush cutters, lawnmowers, trimmers, stick pruning saws, hedge trimmers, and garden blowers.
Specific requirements for air purifiers/vacuum blowers/backpack sprayers. Noise emission characteristics include A-weighted sound pressure level and A-weighted sound level at the operator's location.
Sound power level.
The noise measurement specifications described in this document help manufacturers verify the effectiveness of low-noise designs.
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 3767-2016 Acoustic pressure method for determining the sound power level and sound energy level of a noise source in an approximately free field above a reflecting surface.
Procedure (ISO 3744.2010, IDT)
room)
Note. GB/T 20247-2006 Acoustic reverberation chamber sound absorption measurement (ISO 354.2003, IDT)
ISO 3744 Engineering method for determining the sound power level and sound energy level of a noise source in an approximate free field above a reflecting surface (A-
Note. GB/T 3767-2016 Engineering method for determining the sound power level and sound energy level of a noise source using acoustic pressure method in an approximate free field above a reflecting surface.
(ISO 3744.2010, IDT)
Note. GB/T 14574-2000 Designation and verification of noise emission values for acoustic machines and equipment (eqv ISO 4871.1996)
ulary)
Note. GB/T 18960-2023 Portable Chainsaw Terminology (ISO 6531.2017, IDT)
cuttersandgrass-trimmers-Vocabulary)
Note. GB/T 18961-2023 Vocabulary for Portable Brush Cutter and Lawn Mower (ISO 7112.2018, IDT)
ISO 10517 Safety of Powered Hand-held Hedge Trimmers
Note. GB/T 42607-2023 Safety of Powered Handheld Hedge Trimmers (ISO 10517.2019, IDT)
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