[Code of Federal Regulations]
[Title 16, Volume 2]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 16CFR1213.4]

[Page 358-359]
 
                     TITLE 16--COMMERCIAL PRACTICES
 
             CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
 
PART 1213--SAFETY STANDARD FOR ENTRAPMENT HAZARDS IN BUNK BEDS--Table of Contents
 
Sec. 1213.4  Test methods.

    (a) Guardrails (see Sec. 1213.3(a)(6)). With no mattress on the bed, 
place the wedge block shown in Figure 1, tapered side first, into each 
opening in the bed structure below the lower edge of the uppermost 
member of the guardrail and above the underside of the upper bunk's 
foundation. Orient the block so that it is most likely to pass through 
the opening (e.g., the major axis of the block parallel to the major 
axis of the opening) (``most adverse orientation''). Then gradually 
apply a 33-lbf (147-N) force in a direction perpendicular to the plane 
of the large end of the block. Sustain the force for 1 minute.
    (b) Upper bunk end structure (see Sec. 1213.3(b)(2)). Without a 
mattress or foundation on the upper bunk, place the wedge block shown in 
Figure 1 into each opening, tapered side first, and in the most adverse 
orientation. Determine if the wedge block can pass freely through the 
opening.
    (c) Lower bunk end structure (see Sec. 1213.3(b)(3)). (1) Without a 
mattress or foundation on the lower bunk, place the wedge block shown in 
Figure 1, tapered side first, into each opening in the lower bunk end 
structure in the most adverse orientation. Determine whether the wedge 
block can pass freely through the opening. If the wedge block passes 
freely through the opening, determine whether a 9-inch (230-mm) diameter 
rigid sphere can pass freely through the opening.

[[Page 359]]

    (2) With the manufacturer's recommended maximum thickness mattress 
and foundation in place, repeat the test in paragraph (c)(1) of this 
section.
    (3) All portions of the boundary of any opening that is required to 
be probed by the wedge block of Figure 1 by paragraphs (c)(1) and (c)(2) 
of this section, and that permits free passage of a 9-inch diameter 
sphere, must satisfy the requirements of paragraphs (c)(3)(i) and 
(c)(3)(ii) of this section addressing neck entrapment.
    (i) Insert the ``A'' section of the test template shown in Figure 2 
of this part into the portion of the boundary of the opening to be 
tested, with the plane of the template in the plane of the opening and 
with the centerline of the top of the template (as shown in Figure 2) 
aligned parallel to the centerline of the opening, until motion is 
stopped by contact between the test template and the boundaries of the 
opening (see Figure 3 of this part). By visual inspection, determine if 
there is simultaneous contact between the boundary of the opening and 
both sides of the ``A'' section of the template. If simultaneous contact 
occurs, mark the contact points on the boundary of the opening and 
conduct the additional test described in paragraph (c)(3)(ii) of this 
section.
    (ii) To check the potential for neck entrapment, place the neck 
portion of the ``B'' section of the template into the opening, with its 
plane perpendicular to both the plane of the opening and the centerline 
of the opening (see Figure 4 of this part). If the neck portion of the 
``B'' section of the template completely enters the opening (passes 0.75 
inch or more beyond the points previously contacted by the ``A'' section 
of the template), the opening is considered to present a neck entrapment 
hazard and fails the test, unless its lower boundary slopes downward at 
45 deg. or more for the whole distance from the narrowest part of the 
opening the neck can reach to the part of the opening that will freely 
pass a 9-inch diameter sphere.