Test Procedure
The following procedure applies in determining compliance with section
214 of Schedule IV to the Motor Vehicle Safety Regulations:
(a) either remove or install the seats. If the seats are installed, they
may be adjusted to any position;
(b) place the side windows in their uppermost position and lock all
the doors. Place the sill of the side of the vehicle, opposite to the
side being tested, against a rigid, unyielding vertical surface. Fix the
vehicle rigidly in position by means of tie-down attachments located at,
or forward of, the front-wheel centerline and at, or rearward of, the
rear-wheel centerline;
(c) prepare a loading device consisting of a rigid steel cylinder or
semicylinder 305 mm in diameter with an edge radius of 13 mm. The length
of the loading device shall be such that:
(i) for doors with windows, the top surface of the loading device is at
least 13 mm above the bottom edge of the door window opening, but not
a length that will cause contact with any structure above the bottom edge
of the door window opening during the test,
(ii) for doors without windows, the top surface of the loading device
is at the same height above the ground as when the loading device is
positioned in accordance with subparagraph 3(c)(i) of this test method
for purposes of testing a front door with windows on the same vehicle;
(d) locate the loading device as shown in Figure 1 (side view) such
that its longitudinal axis is vertical and, except as provided in subparagraphs
3(d)(i) and (ii), its axis is located laterally opposite the midpoint
of a horizontal line drawn across the outer surface of the door 127 mm
above the lowest point of the door, exclusive of any decorative or protective
moulding that is not permanently affixed to the panel of the door;
(i) for contoured doors on trucks, buses and multipurpose passenger vehicles
with a GVWR of 4536 kg or less, if the length of the horizontal line drawn
across the outer surface of the door 127 mm above the lowest point of
the door is not equal to or greater than 559 mm, the horizontal line is
moved vertically up the side of the door to the location at which the
horizontal line is 559 mm long and the longitudinal axis of the loading
device is then located laterally opposite the midpoint of that horizontal
line,
(ii) for double side doors on trucks, buses and multipurpose passenger
vehicles with a GVWR of 4536 kg or less, the longitudinal axis of the
loading device is located laterally opposite the midpoint of a horizontal
line drawn across the outer surface of the double door's span, 127 mm
above the lowest point on the doors, exclusive of any decorative or
protective moulding that is not permanently affixed to the panel of
the door;
(e) except as provided in subparagraphs 3(e)(i) and (ii), the bottom
surface of the loading device is in the same horizontal plane as the horizontal
line drawn 127 mm above the lowest point of the door, exclusive of any
decorative or protective moulding that is not permanently affixed to the
panel of the door:
(i) for contoured doors on trucks, buses and multipurpose passenger vehicles
with a GVWR of 4536 kg or less, the bottom surface of the loading device
is in the lowest horizontal plane such that every point on the lateral
projection of the bottom surface of the device on the door is at least
127 mm horizontally and vertically from any edge of the panel of the door,
exclusive of any decoration or protective moulding that is not permanently
affixed to the panel,
(ii) for double side doors, the bottom surface of the loading device
is in the same horizontal plane as a horizontal line drawn across the
outer surface of the double door's span 127 mm above the lowest point
of the doors, exclusive of any decoration or protective moulding that
is not permanently affixed to the panel of the door;
(f) using the loading device, apply a load to the outer surface of the
door in an inboard direction normal to a vertical plane along the vehicle's
longitudinal centerline. Apply the load continuously such that the rate
of travel of the loading device does not exceed 13 mm/sec until the loading
device travels 457 mm. Guide the loading device to prevent it from being
rotated or displaced from its direction of travel. The test must be completed
within 120 seconds;
(g) record the applied load versus the displacement of the loading device,
either continuously or in increments of not more than 25 mm or 890 N,
for the entire crush distance of 457 mm; and
(h) determine the initial crush resistance, intermediate crush resistance
and the peak crush resistance as follows:
(i) from the results obtained in paragraph 3(g), plot a curve of the load
versus displacement and obtain the integral of the applied load with respect
to the crush distances specified in subparagraphs 3h(ii) and (iii),
(ii) calculate the initial crush resistance by dividing the integral
of the applied load, over the initial 152 mm of crush, by 152 mm,
(iii) calculate the intermediate crush resistance by dividing the
integral of the applied load, over the initial 305 mm of crush, by 305
mm,
(iv) the peak crush resistance is the greatest force recorded over
the entire 457 mm distance of crush.
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