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GB/T 19725.1-2020 English PDF

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GB/T 19725.1-2020: Agricultural and forestry machinery - Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers - Part 1: Machines fitted with an integral combustion engine
Status: Valid

GB/T 19725.1: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 19725.1-2020English564 Add to Cart 3 days [Need to translate] Agricultural and forestry machinery - Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers - Part 1: Machines fitted with an integral combustion engine Valid GB/T 19725.1-2020
GB 19725.1-2014EnglishRFQ ASK 3 days [Need to translate] Agricultural and forestry machinery -- Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers -- Part 1: Machines fitted with an integral combustion engine Obsolete GB 19725.1-2014
GB 19725-2005English959 Add to Cart 4 days [Need to translate] Forestry machinery -- Portable brush cutters and grass trimmers -- Safety requirements Obsolete GB 19725-2005

PDF similar to GB/T 19725.1-2020


Standard similar to GB/T 19725.1-2020

GB/T 24674   LY/T 1346   GB/T 21962   GB/T 19724   GB/T 19726.1   GB/T 19725.2   

Basic data

Standard ID GB/T 19725.1-2020 (GB/T19725.1-2020)
Description (Translated English) Agricultural and forestry machinery - Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers - Part 1: Machines fitted with an integral combustion engine
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B95
Classification of International Standard 65.060.80
Word Count Estimation 30,376
Date of Issue 2020-04-28
Date of Implementation 2020-04-28
Older Standard (superseded by this standard) GB 19725.1-2014
Quoted Standard GB/T 23821-2009; LY/T 1035-2001; ISO 683-9-1988; ISO 7112; ISO 7918; ISO 8380; ISO 8893; ISO/TR 11688-1; ISO 12100-2010; ISO 14982-1998; ISO 22867; ISO 22868; IEC 60745-1-2006
Adopted Standard ISO 11806-1-2011, IDT
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration
Summary This standard specifies the safety requirements and test methods for the design, structure and use of portable side-mounted power brush cutters and lawn mowers (hereinafter referred to as complete machines) that use an internal combustion engine as a power source and transmit mechanical power to cutting accessories. This standard specifies methods for eliminating or reducing various hazards arising from the use of brush cutters and lawn mowers, and specifies the requirements for information provided by manufacturers on safe operation. This standard covers all serious hazards, dangerous situations and serious hazard events associated with the whole machine during normal use and reasonable and foreseeable misuse of the machine by the manufacturer. This standard does not apply to complete machines equipped with non-integral metal cutting attachments, such as chain slinger or slinger blades. This standard applies to portable side-mounted power cutters produced after its implementation

GB/T 19725.1-2020: Agricultural and forestry machinery - Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers - Part 1: Machines fitted with an integral combustion engine



---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.
Agricultural and forestry machinery--Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers--Part 1. Machines fitted with an integral combustion engine ICS 65.060.80 B95 National Standards of People's Republic of China Replace GB 19725.1-2014 Agriculture and forestry machinery portable brush cutter and lawn mower safety Requirements and tests Part 1. Side-mounted power machinery (ISO 11806-1..2011, IDT) 2020-04-28 release 2020-04-28 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Contents

Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Safety requirements and/or protective measures 3 4.1 General 3 4.2 Handle 3 4.3 The distance between the handle and the cutting accessory (only for brush cutter) 4 4.4 Strap 5 4.5 Balance 6 4.6 Strength of cutting accessories 6 4.7 Fixing of cutting accessories 7 4.8 Cutting accessory safety cover 7 4.9 Transport guard 7 4.10 Length of flexible cutting rope 8 4.11 Engine starting device 8 4.12 Engine stop switch 8 4.13 Throttle control 8 4.14 Clutch 10 4.15 Fuel tank 10 4.16 Protection of high voltage live parts 10 4.17 Protection of hot parts 10 4.18 Exhaust gas 11 4.19 Vibration 11 4.20 Noise 12 4.21 Electromagnetic compatibility 12 5 Usage Information 12 5.1 Operating Instructions 12 5.2 Logo 14 5.3 Warning 15 5.4 Label test 15 Appendix A (Normative Appendix) Cutting Accessories Impact Test 17 Appendix B (Normative Appendix) Parabolic Test 19 Appendix C (Informative Appendix) List of Serious Hazards 23 References 24

Foreword

GB/T 19725 "Safety requirements and tests of portable brush cutters and lawn mowers for agricultural and forestry machinery" is divided into the following two parts. --- Part 1. Side-mounted power machinery; --- Part 2. Piggyback power machinery. This part is part 1 of GB/T 19725. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB 19725.1-2014 "Safety Requirements and Tests of Portable Brush cutters and Lawn Mowers for Agriculture and Forestry Machinery. Side-mounted power machinery ", the main technical content has no change compared with GB 19725.1-2014. The translation method used in this part is equivalent to the adoption of ISO 11806-1..2011 "Safety Requirements and Trials of Portable Brushcutters and Lawnmowers for Agriculture and Forestry Machinery" Test Part 1. Side-mounted power machinery ". The documents in China that have a consistent correspondence with the normatively cited international documents in this section are as follows. --- GB/T 5390-2013 Forestry and garden machinery specification for noise measurement of portable handheld operating machinery powered by internal combustion engine Engineering method (level 2 accuracy) (ISO 22868..2011, IDT) --- GB/T 5395-2014 Forestry and garden machinery vibration measurement specification for portable handheld operating machinery powered by internal combustion engine Handle vibration (ISO 22867..2011, IDT) --- GB/T 15706-2012 General principles of machinery safety design risk assessment and risk reduction (ISO 12100..2010, IDT) --- GB/T 18961-2012 Forestry machinery portable brush cutter and lawn mower vocabulary (ISO 7112..2008, IDT) --- GB/T 21398-2008 Agricultural and forestry machinery electromagnetic compatibility test methods and acceptance rules (ISO 14982..1998, IDT) --- GB/T 25078.1-2010 Recommendations for the design and implementation of acoustic low noise machines and equipment. Part 1. Planning (ISO /TR 11688-1..1995, IDT) --- LY/T 1036-2000 Portable brush cutter and lawn mower cutting accessories safety cover size (eqvISO 7918..1995) --- LY/T 1349-2000 Portable brush cutter and lawn mower cutting accessories safety cover strength (eqvISO 8380..1993) --- LY/T 3165-2019 Forestry machinery portable brush cutter and lawn mower engine performance and fuel consumption (ISO 8893. 1997, IDT) Please note that some content of this document may involve patents. The issuer of this document does not assume responsibility for identifying these patents. This part is proposed by the State Forestry and Grassland Bureau. This part is under the jurisdiction of the National Forestry Machinery Standardization Technical Committee (SAC/TC61). This section was drafted. Shandong Huasheng Zhongtian Machinery Group Co., Ltd., Yongkang Power Technology Co., Ltd., Zhejiang Sapas Tool Manufacturing Co., Ltd., Zhejiang Yusen Bailian Tools Co., Ltd., Ningbo Daye Garden Equipment Co., Ltd., Jiangsu Linhai Power Machinery Group Co., Ltd., Shandong Yongjia Power Co., Ltd., Harbin Forestry Machinery Research Institute of State Forestry and Grassland Bureau. The main drafters of this section. Cui Jingguo, Hu Anguo, Lv Jiangfeng, Tang Enchang, Lan Yanglin, Zhang Rongshan, Liu Guiyang, Wang Zhendong, Yan Jin. The previous versions of the standard replaced by this part are as follows. --- GB 19725-2005; --- GB 19725.1-2014. Agriculture and forestry machinery portable brush cutter and lawn mower safety Requirements and tests Part 1. Side-mounted power machinery

1 Scope

This part of GB/T 19725 stipulates the portable side-mounted power that uses the internal combustion engine as the power source and transmits the mechanical power to the cutting accessory Safety requirements and test methods for the design, structure and use of brush cutters and lawn mowers (hereinafter referred to as complete machines). This section proposes The method of removing or reducing various hazards generated during the use of brush cutters and lawn mowers stipulates the relevant safety provided by the manufacturer Requirements for operational information. This section covers all serious dangers related to the whole machine during normal use and reasonable, foreseeable misuse of the whole machine by the manufacturer. Dangerous situations and serious hazard events. Note. See Appendix C for a list of serious hazards. This section does not apply to the whole machine equipped with non-integral metal cutting accessories, such as chain swing or knife blade. This section applies to portable side-mounted power brush cutters and lawn mowers produced after their implementation.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 23821-2009 Safety of machinery to prevent the upper and lower limbs from reaching the safe distance of the hazardous area (ISO 13857..2008, IDT) LY/T 1035-2001 Portable brush cutter cutting accessories single-piece metal blade (idtISO 7113..1999) ISO 683-9. 1988 Heat-treated steel, alloy steel and free-cutting steel Part 9. Forged free-cutting steel (Heat-treatablesteel, aloysteelsandfree-cuttingsteels-Part 9. Wroughtfree-cuttingsteels) ISO 7112 Forestry machinery portable brush cutter and lawn mower vocabulary (Machineryforforestry-Portablebrush- cuttersandgrass-trimmers-Vocabulary) ISO 7918 forestry machinery portable brush cutter and lawn mower cutting accessories safety cover size (Forestrymachinery- Portablebrush-cuttersandgrass-trimmers-Cuttingattachmentguarddimensions) ISO 8380 forestry machinery portable brush cutter and lawn mower cutting accessories safety cover strength (Forestrymachinery- Portablebrush-cuttersandgrass-trimmers-Cuttingattachmentguardstrength) ISO 8893 forestry machinery portable brush cutter and lawn mower engine performance and fuel consumption (Forestrymachinery- Portablebrush-cuttersandgrass-trimmers-Engineperformanceandfuelconsumption) ISO /T R11688-1 Recommended Practice for Design of Acoustic Low-Noise Machines and Equipment Part 1. Design (Acoustics- Recommendedpracticeforthedesignoflow-noisemachineryandequipment-Part 1. Planning) ISO 12100..2010 General principles of machinery safety design risk assessment and risk reduction (Safetyofmachinery-General principlesfordesign-Riskassessmentandriskreduction) ISO 14982..1998 Agricultural and forestry machinery electromagnetic compatibility test methods and acceptance rules (Agriculturalandforestryma- chinery-Electromagneticcompatibility-Testmethodsandacceptancecriteria) ISO 22867 Forestry and garden machinery. Internal combustion engine powered portable hand-held operating machinery. Vibration measurement specification. Handle vibration (Forestryandgardening machinery-Vibrationtestcodeforportablehand-held machines with internalcombustionengine-Vibrationatthehandles)

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