[word=percentile] [□=□] □ □
[word=percentile] [word=□] □ □
[word=percentile] [tag=□] □ □
The standard specifies , for the 50th percentile adult male dummy , a 60 g acceleration limit and a 76 mm ( 3 inch ) deflection limit . The 50th percentile adult male manikin H-point provides a specific target for this heavy dummy so that it can be positioned in the seat . In the fourth test , of the MY 1999 Dodge Intrepid , the 5th percentile adult female driver dummy failed both the chest displacement and Nij performance limits ; however the 50th percentile adult male driver dummy passed all the relevant injury criteria performance limits when tested in the same vehicle . The 50th percentile adult male dummy ( 78 kg ( 171 pounds ) ) is 28 kg ( 63 pounds ) heavier than the 5th percentile adult female ( 49 kg ( 108 pounds ) ) and therefore much more difficult to maneuver into position . The prototype THOR-LX for the 50th percentile adult male Hybrid III dummy has extensive biomechanical benchmarking incorporating a number of humanlike features , and is capable of assessing the potential of tibia , ankle and foot injuries with an extensive array of sensors . For example , the optimum air bag for meeting the unbelted rigid barrier test for the 50th percentile adult male driver dummy would be a large air bag filling the space between the dummy and the steering wheel . Instead , when tested under specified test conditions , vehicles must meet specified limits for injury criteria , including criteria for the head , chest and thighs , measured on 50th percentile adult male test dummies . ( For the same make model vehicles , the 50th percentile adult male driver dummy also passed all the injury criteria performance limits . Therefore , we believe the CTI limit proposed in the NPRM and AAMA 's recommended individual limits are largely equivalent and that there is a slight safety benefit to adopting the individual limits of 60 g 's of acceleration and 64 mm ( 2.5 inches ) of chest deflection for the 50th percentile adult male dummy . The 50th percentile adult male dummy presents a greater challenge than the 5th percentile adult female dummy does in such a test . We are proposing to change the HIC time interval to a maximum of 15 milliseconds for all dummy sizes and to revise the HIC limits by commensurate amounts , based on a scaling from the proposed new limit for the 50th percentile adult male dummy .