This standard applies to suit systems to be worn by helicopter passengers during transportation over water where thermal protection may be required.

The primary function of a suit system meeting this standard is to provide the helicopter passenger protection from the effects of cold water during the initial hours of immersion.

Helicopter passenger transportation suit systems meeting this standard are tested for flame exposure to ensure they do not sustain flame. The degree of fire protection that the helicopter suit system may provide to the helicopter passenger is not tested.

Helicopter suit systems meeting this standard are tested as sized, fitted, donned, sealed and used in accordance with the manufacturer's written instructions, which accompany each suit system. Any use of a helicopter suit system that is not in accordance with the manufacturer's instructions is not within the scope of this standard.

The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use.