This part of is 7176 specifies requirements for test dummies of mass equal to or greater than 25 kg, for use in the evaluation of wheelchairs. This part of is 7176 provides formulas specifying the position of the overall center of mass of the test dummies, the masses of the segments compris ng these test dummies as well as the positions of the joints connecting these segments. It also specifies the characteris ics of the loading skids supporting these segments. The specified position of the center of masses is approximately the same as that of a human being of corresponding mass when seated in