This standard applies to immersion suit systems that:

• reduce thermal shock upon entry into cold water;
  
  
• delay the onset of hypothermia during immersion in cold water;
  
  
• provide flotation for the wearer while in the water; and
  
  
• do not impair the wearer's ability to perform necessary abandonment procedures.

Appendix A includes guidelines for insulation of the suit system exterior fabric.

Appendix B describes the approval procedure.

Appendix C describes the production inspection procedure.

Appendix D includes the requirements and test procedures for waterproof zippers.

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 existing applicable regulatory requirements prior to its use.