1.1 This International Standard specifies a procedure for cal-culating the volume of dozer blades. It is intended to be used for consistent comparisons of dozer blade capacities presented in commercial literature for tractors, as defined in ISO 6165. It is not to be used for predicting productivity of tractor dozers in actual field conditions or that might be observed in any specific applications. Such determinations need to consider other para-meters, such as efficiency of the blade, tractor power, tractive effort, soil properties, terrain, operator technique and duty cycle. 1.2 This International Standard applies to all types of dozers that are mounted on all tractors defined in ISO 6747. This includes straight, angling, semi-U-, and U-blade configur-ations. It is assumed that the blade face is flat and vertical; the blade included volume is not considered (see figure 1).