[Code of Federal Regulations]
[Title 16, Volume 2]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 16CFR1203.8]

[Page 218-219]
 
                     TITLE 16--COMMERCIAL PRACTICES
 
             CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
 
PART 1203--SAFETY STANDARD FOR BICYCLE HELMETS--Table of Contents
 
                         Subpart A--The Standard
 
Sec.  1203.8  Conditioning environments.

    Helmets shall be conditioned to one of the following environments 
prior to testing in accordance with the test schedule at Sec.  1203.13. 
The barometric pressure in all conditioning environments shall be 75 to 
110 kPa (22.2 to 32.6 in of Hg). All test helmets shall be stabilized 
within the ambient condition for at least 4 hours prior to further 
conditioning and testing. Storage or shipment within this ambient range 
satisfies this requirement.
    (a) Ambient condition. The ambient condition of the test laboratory 
shall be within 17 C to 27 C (63 
F to 81 F), and 20 to 80% relative 
humidity. The ambient test helmet does not need further conditioning.
    (b) Low temperature. The helmet shall be kept at a temperature of -
17 C to -13 C (1 F to 9 
F) for 4 to 24 hours prior to testing.
    (c) High temperature. The helmet shall be kept at a temperature of 
47 C to 53 C (117 F to 127 
F) for 4 to 24 hours prior to testing.
    (d) Water immersion. The helmet shall be fully immersed ``crown'' 
down in potable water at a temperature of 17 C to

[[Page 219]]

27 C (63 F to 81 F) to a 
crown depth of 305 mm 25 mm (12 in. 1 in.) for 4 to 24 hours prior to testing.