[Code of Federal Regulations]
[Title 16, Volume 2]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 16CFR1513.4]

[Page 579]
 
                     TITLE 16--COMMERCIAL PRACTICES
 
             CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
 
PART 1513_REQUIREMENTS FOR BUNK BEDS--Table of Contents
 
Sec.  1513.4  Test methods.

    (a) Guardrails (see Sec.  1513.3(a)(6)). With no mattress on the 
bed, place the wedge block shown in Figure 1, tapered side first, into 
each opening in the rigid 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.  1513.3(b)(2)). Without a 
mattress or foundation on the upper bunk, place the wedge block shown in 
Figure 1 into any 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.  1513.3(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.
    (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 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 can completely enter 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'' 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.