ECE104 Guidelines for the Marking Shape and Mounting Requirements
SIDE & REAR MARKING WITH STRIPS
Retroreflective marking materials installed on vehicles may be made up of an element or seleval elements preferably continously, parallel or as close as possible parallel to the ground. The same rul applies for tractors, semi-trailers and other vehicle combinations. A combination of vehicles and trailers marked and unmarked in the sense of this Reulation is discouraged.
The mounting of the markings should identify as close as possible the entire length and width of the vehicle. Entire means as least 80 percent of the length and/or width.
In cas eof non-continous strips the distance should be as small as possible and should not exceed 50 percent of the shortest element length. The minimum length of an element of a retroreflective marking material shall be such that at least one approval mark is visible.
Retro-reflective marking materials shall have a minimum height above the ground of at least 250mm and a maximum height of 1.500mm. However, 2.100mm may be accepted in cases where technical conditions forbid the compliance with the maximum value of 1.500mm.
The mounting of the contour markings should identify as close as possible the overall shape of the vehicle to the sides and rear.
In the case of non-continous strips, the distance between single elements should be as small as possible and should both exceed 50 percent of the shortest element length.
The lower part of the retro-reflective marking materials should have a minimum height above the ground of at least 250mm and maximum height of 1.500mm.