- a flat surface at right angles to a plumb line
- on a horizontal supporting surface;
- Stability on a horizontal supporting surface(test for point 220.127.116.11)
- The vehicle shall stay on a horizontal surface.
- The vehicle shall be standing on a horizontal surface.
- ‘Ground’ means the surface on which the vehicle stands which should be substantially horizontal;
- The tractor must be placed on a horizontal surface as shown in Figure 2.
- In the case of caravans and goods trailers, the horizontal position is regarded as when the floor or loading surface is horizontal.
- For S3 or S4 categories devices, the horizontal plane tangential to the lower edge of the apparent surface shall:
- To determine the lower, upper and lateral limits of the illuminating surface, only vertical and horizontal planes shall be used.
- The surface onto which the containers are dropped shall be a smooth, horizontal concrete pad or flooring.
- a road surface luminance of 1 cd/m2 and/or a horizontal road illumination of 10 lx being exceeded continuously;
- In the case of trailers without such a reference surface (e.g. boat trailers or similar) the trailer manufacturer shall give an appropriate reference line defining the horizontal position.
- To determine the lower, upper and lateral limits of the illuminating surface, only screens with horizontal or vertical edges shall be used.
- The slope of the gangway, measured with the vehicle unladen on a horizontal surface, and with the kneeling system not activated, shall not exceed:
- In the absence of specific instructions, the height and alignment of the lamps shall be checked with the unladen tractor placed on a flat, horizontal surface.