BS ISO 12003-2:2008

1   Scope This part of ISO 12003 specifies procedures for both the static and dynamic testing of roll-over protective structures ( ROPS ) rear-mounted on narrow-track wheeled agricultural and forestry tractors. It defines the clearance zone and acceptance conditions for rigid or tiltable, rear, two-post roll bar, frame and cab ROPS , and is applicable to tractors so equipped having the following characteristics.

       —  A ground clearance of not more than 600 mm beneath the lowest points of the front- and rear-axle housings (not considering lower points on the axle differential). 
   
   
     
       —  A fixed or adjustable minimum track width of one of the two axles of less than 1 150 mm when fitted with the widest specified tyres, and with the overall width of the other axle being less than that of the first axle. 
   
   
     
       —  A mass greater than 600 kg but less than 3 000 kg, unladen, including the  ROPS  and tyres of the largest size recommended by the manufacturer.