ISO 1726-2:2007 Road vehicles - Mechanical couplings between tractors and semi-trailers - Part 2: Interchangeability between low-coupling tractors and high-volume semi-trailers
International Organization for Standardization (ISO)
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ISO 1726-2:2007
Scope
This part of ISO 1726 specifies dimensions to ensure interchangeability between a low coupling height tractor
vehicle and a coupled high-volume semi-trailer, the two together constituting a high-volume articulated vehicle.
It specifies certain interchangeability dimensions, including those of the optimised gooseneck contour, as well
as operating dimensions related to angle values. The specifications are primarily intended to permit
semi-trailers to be coupled with two-axle tractors. However, three-axle tractors are not excluded, provided they
are in compliance with the requirements of this part of ISO 1726.
This part of ISO 1726 does not provide limitations of maximum gross mass and overall dimensions, which are
generally laid down by legislative requirements.
ISO 1726-2:2007 history
2007ISO 1726-2:2007 Road vehicles - Mechanical couplings between tractors and semi-trailers - Part 2: Interchangeability between low-coupling tractors and high-volume semi-trailers