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GB/T 42608-2023Portable chain-saws - Kickback test (English PDF)

便携式链锯反弹试验

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 23, 2023

Implementation date

December 1, 2023

Scope

GB/T 42608-2023 is the English-translated version of 便携式链锯反弹试验.

GB/T 42608-2023 is the Chinese standard "Portable chain-saws - Kickback test".

Its scope clause reads: This document describes the determination of gasoline-powered and electrically powered (including battery-powered), with guide bars and saws The method of rebounding energy of a chain saw (hereinafter referred to as "chain saw"): The test method of this document has been proved to be a method for evaluating and calculating the Accurate measurement method for the rebound angle and rebound energy of a chain saw powered by a gasoline engine with a displacement not exceeding 80cm3: this document Not suitable for evaluation of chainsaws with an engine displacement exceeding 80cm3: In addition, due to the limitation of the structure size of rebound equipment, this document is not applicable to Chainsaws that cut more than 63cm in length: The modification of the method for determining the rebound energy in this document is aimed at making the results more reproducible, based on the experimental results obtained by the previous method: result is still valid:. Its clauses include terms and definitions.

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Document preview — GB/T 42608-2023

National Standard of the People's Republic of China

ICS: 65.060.80
Classification: B90

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Test method
5 Test report
Appendix A (Normative) Computer Program Flowchart
Appendix B (Normative) Medium Density Fiberboard (MDF) Hardness Test Procedure
Appendix C (Informative) Test Record
Appendix D (Informative) Chainsaw Center of Gravity and Inertia Measurement
Appendix E (Informative) Computer Program Inspection Model

1 Scope

This document describes the determination of gasoline-powered and electrically powered (including battery-powered), with guide bars and saws

The method of rebounding energy of a chain saw (hereinafter referred to as "chain saw"):

The test method of this document has been proved to be a method for evaluating and calculating the

Accurate measurement method for the rebound angle and rebound energy of a chain saw powered by a gasoline engine with a displacement not exceeding 80cm3: this document

Not suitable for evaluation of chainsaws with an engine displacement exceeding 80cm3: In addition, due to the limitation of the structure size of rebound equipment, this document is not applicable to

Chainsaws that cut more than 63cm in length:

The modification of the method for determining the rebound energy in this document is aimed at making the results more reproducible, based on the experimental results obtained by the previous method:

result is still valid:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:

Note: GB/T 18960-2023 Portable Chainsaw Vocabulary (ISO 6531:2017, IDT)

Note: LY/T 2890-2017 Portable Chainsaw Chain Brake Performance Test Method (ISO 6535:2015, IDT)

3 Terms and Definitions

The terms and definitions defined in ISO 6531 and the following apply to this document:

ISO and IEC maintain standardized terminology databases at:

---ISO online browsing platform: https://www:iso:org/obp;

3:1

Guide bar head radius barnoseradius

The continuous radius formed from the centerline of the bar to the front end of the bar within an angle of 35° above the centerline:

Note: See Figure 1:

Figure 1 Radius of guide bar head […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 45 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 18960-2023Potable china-saws - Vocabulary

ISO 6531 · ISO 6535

Cited by

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GB 38031-2025|GB/T42608-2023|GB/T 1|GB/T 18960-2023|GB 10395.1|GB 16151.1|GB 10395.6|GB/T 20341

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