GB/T 39250-2020Agricultural and forestry tractors and machinery - Speed Identification Mark (SIS) (English PDF)
农林拖拉机和机械 速度识别标识（SIS）
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
November 19, 2020
Implementation date
June 1, 2021
Scope
GB/T 39250-2020 is the English-translated version of 农林拖拉机和机械 速度识别标识（SIS）.
GB/T 39250-2020 is the Chinese standard "Agricultural and forestry tractors and machinery - Speed Identification Mark (SIS)". Its scope clause reads: This standard specifies the size, characteristics and location of the Speed Identification Mark (SIS) that indicates the maximum speed of agricultural vehicles.
Note. The operator approaching the equipment from behind on the highway can see the speed identification mark behind the equipment, and the speed identification mark installed in front of the towed equipment is used for To remind the driver of the towing vehicle of the maximum speed that the traction equipment unit can travel.
This standard applies to self-propelled, semi-integrated and towed equipment running on highways. Its clauses include terms and definitions.
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Document preview — GB/T 39250-2020
National Standard of the People's Republic of China
- Classification
- T 61
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.
1 Scope
This standard specifies the size, characteristics and location of the Speed Identification Mark (SIS) that indicates the maximum speed of agricultural vehicles.
Note. The operator approaching the equipment from behind on the highway can see the speed identification mark behind the equipment, and the speed identification mark installed in front of the towed equipment is used for
To remind the driver of the towing vehicle of the maximum speed that the traction equipment unit can travel.
This standard applies to self-propelled, semi-integrated and towed equipment running on highways.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB/T 2792-2014 Test method for peel strength of adhesive tape (ISO 29862.2007, MOD)
ISO 2810 Natural aging of paints and varnishes
3 Terms and definitions
ISO and IEC maintain standardized terminology databases and the following terms and definitions apply to this document.
The website of the standardized terminology database maintained by ISO and IEC is as follows.
3.1 Actual travel speed limit
The driving speed specified by the machine with the lowest speed among the towed farm tools (equipment units).
3.2 highway
The width between the two boundary lines of the road conforms to the roads of public rules for vehicles.
Note. Including highways (except highways with limited access requirements), country roads or multi-purpose roads and driving lanes.
3.3 Prescribed speed
On the basis of the original structure of the equipment, vehicles and quilts designed with tire bearing capacity, trajectory, stability, braking performance and other related factors
Maximum travel speed for towing or semi-installed equipment.
Note. The maximum driving speed of self-propelled equipment is when the tire with the maximum rolling radius specified by its assembly manufacturer, the engine is at the maximum
It is the driving speed at the highest gear.
3.4 Speed identification mark
The equipment or vehicle displays the sign or logo of the maximum speed specified when the vehicle or the towed equipment is working.
3.5 Towed equipment unit
Multiple devices towed by a single towing vehicle. […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.
Referenced standards
Normative references
ISO 29862.2007 · ISO 2810
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