[Code of Federal Regulations]
[Title 49, Volume 6]
[Revised as of October 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR572.42]

[Page 935-936]
 
                        TITLE 49--TRANSPORTATION
 
                   CHAPTER V--NATIONAL HIGHWAY TRAFFIC
                    SAFETY ADMINISTRATION, DEPARTMENT
                            OF TRANSPORTATION
 
PART 572_ANTHROPOMORPHIC TEST DEVICES--Table of Contents
 
            Subpart F_Side Impact Dummy 50th Percentile Male
 
Sec.  572.42  Thorax.

    (a) When the thorax of a completely assembled dummy (SA-SID-M001A 
revision A, dated May 18, 1994, incorporated by reference; see Sec.  
572.40), appropriately assembled for right or left side impact, is 
impacted by a test probe conforming to Sec.  572.44(a) at 14 fps in 
accordance with paragraph (b) of this section, the peak accelerations at 
the location of the accelerometers mounted on the thorax in accordance 
with Sec.  572.44(b) shall be:
    (1) For the accelerometer at the top of the Rib Bar on the struck 
side (LUR or RUR) not less than 37 g's and not more than 46 g's.
    (2) For the accelerometer at the bottom of the Rib Bar on the struck 
side

[[Page 936]]

(LLR or RLR) not less than 37 g's and not more than 46 g's.
    (3) For the lower thoracic spine (T12) not less than 15 g's and not 
more than 22 g's.
    (b) Test Procedure. (1) Adjust the dummy legs as specified in Sec.  
572.44(f). Seat the dummy on a seating surface as specified in Sec.  
572.44(h) with the limbs extended horizontally forward.
    (2) Place the longitudinal centerline of the test probe at the 
lateral side of the chest at the intersection of the centerlines of the 
third rib and the Rib Bar on the desired side of impact. This is the 
left side if the dummy is to be used on the driver's side of the vehicle 
and the right side if the dummy is to be used on the passenger side of 
the vehicle. The probe's centerline is perpendicular to thorax's 
midsagittal plane.
    (3) Align the test probe so that its longitudinal centerline 
coincides with the line formed by the intersection of the transverse and 
frontal planes perpendicular to the chest's midsagittal plane passing 
through the designated impact point.
    (4) Position the dummy as specified in Sec.  572.44(h), so that the 
thorax's midsagittal plane and tangential plane to the Hinge Mounting 
Block (Drawing SID-034) are vertical.
    (5) Impact the thorax with the test probe so that at the moment of 
impact at the designated impact point, the probe's longitudinal 
centerline falls within 2 degrees of a horizontal line perpendicular to 
the dummy's midsagittal plane and passing through the designated impact 
point.
    (6) Guide the probe during impact so that it moves with no 
significant lateral, vertical or rotational movement.
    (7) Allow a time period of at least 20 minutes between successive 
tests of the chest.

[59 FR 52091, Oct. 14, 1994, as amended at 59 FR 52091, Oct. 14, 1994]