GB/T 21956.4-2009 Replaced National standards

GB/T 21956.4-2009 The strength testing method and accepting condition of protective structures on narrow-track wheeled agricultural and forestry tractors—Part 4:Dynamic testing method of rear mounted ROPS

Publish Date: 2009-03-05 Implement Date: 2009-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21956.4-2009

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: The driver's cab and other parts of the vehicle are separated by a partition wall.

ICS Name: Agricultural tractors and traction vehicles

Publish Date: 2009-03-05

Implement Date: 2009-10-01

Pages: 20 pages

Scope

This part of GB/T 21956 specifies the dynamic test methods and acceptance conditions for rear-mounted protective devices of narrow-track wheeled tractors used in agriculture and forestry.
This part of GB/T 21956 applies to pneumatic tire tractors with two axles, where the ground clearance of the lowest points of the front and rear axles does not exceed 600 mm; for tractors equipped with larger-sized tires on the front or rear wheels, regardless of whether the wheelbase is fixed or adjustable, the minimum wheelbase should not exceed 1,150 mm; the unladen mass of the tractor (including the protective device and the maximum tires provided by the manufacturer) should be greater than 600 kg. If it is a two-way driving tractor, it should also be less than 3,000 kg.

Development Information

Word Count: 28 Thousand words Pages: 20 pages

Superseded by the following standards

GB/T 21956.2-2024 Tractors for agriculture and forestry—Roll-over protective structures on narrow tractors—Part 2:Rear-mounted ROPS

Referenced Standards

GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 6236-2008 Tractors and machinery for agricultural and forestry—Seat index point GB/T 6960.7-1995 Tractor terminology—Cab, seat and sheet metal GB/T 6960.7-2007 Tractor terminology—Part 7:Cab, seat and sheet metal

Adopt standards

农业和林业拖拉机官方规则组织(OECD)2005年颁布的试验标准规则7 OECD Code 7:2005

Related Standards

GB/T 5262-1985 Replaced

GB/T 5262-1985 Measuring methods for agricultural machinery testing conditions—general rules

Publish Date: 1985-07-25

GB 7121-1986 Replaced

GB 7121-1986 Agricultural and forestry wheeled tractors—Protective structures—Test method in the strength and acceptance conditions

Publish Date: 1986-12-30

GB 1593.4-1987 Abolished

GB 1593.4-1987 Agricultural wheeled tractors—Three-point linkage—Part 4:Category 0

Publish Date: 1987-01-02

GB/T 13875-1992 Replaced

GB/T 13875-1992 The general specification for walking tractors

Publish Date: 1992-11-14

GB/T 13876-1992 Replaced

GB/T 13876-1992 Agricultural wheeled tractors—Evaluation criteria of whole body vibration of the operator

Publish Date: 1992-11-14

GB/T 13878-1992 Abolished

GB/T 13878-1992 Agricultural tractors and self-propelled machines—Performance of heating and ventilation systems in closed cabs—Method of test

Publish Date: 1992-11-14