NFPA 1971-1997 Standard on Protective Ensemble for Structural Fire Fighting

NFPA 1971-1997 Standard on Protective Ensemble for Structural Fire Fighting. Energy Absorbing System. A material, suspension system, or combination thereof incorporated into the design of the helmet to attenuate impact energy. Ensemble. See definition of “Protective Ensemble.” Entry Fire Fighting. Extraordinarily specialized fire fighting operations that can include the activities of rescue, fire sup- pression, and property conservation at incidents involving fires producing very high levels of conductive, convective, and radiant heat; such as aircraft fires, bulk flammable gas fires, and bulk flammable liquid fires. Highly specialized thermal protection from exposure to extreme levels of con- ductive, convective, and radiant heat is necessary for persons involved in such extraordinarily specialized operations due to the scope of these operations and because direct entry into flames is made. Usually these operations are exterior opera- tions. Entry fire fighting is not structural fire fighting. (See also Approach Fire Fighting, Proximity Fire Fighting, and Structural Fire Fighting.) Eye/Face Positioning Index. The distance, as specified by the manufacturer, from the top lateral midpoint of the faceshield/goggle components to the basic plane of the Alderson 50 percent adult male headform where the faceshield/goggle component is positioned on the head- form. Faceshield. A helmet component intended to help protect a portion of the wearer’s face in addition to the eyes, not intended as primary eye protection. Faceshield/Goggle. Used in this standard to identify crite- ria that applies to either a faceshield or goggle component of a helmet. Flame Resistance. The property of a material whereby the application of a flaming or nonflaming source of ignition and the subsequent removal of the ignition source results in the termination of combustion. Flame resistance can be an inher- ent property of the material, or it can be imparted by specific treatment. Liquid Borne Pathogen. An infectious bacteria or virus car- ried in human, animal, or clinical body fluids, organs, or tis- sues. Listed.* Equipment, materials, or services included in a list published by an organization that is acceptable to the author- ity having jurisdiction and concerned with evaluation of prod- ucts or services, that maintains periodic inspection of production of listed equipment or materials or periodic eval- uation of services, and whose listing states that either the equipment, material, or service meets identified standards or has been tested and found suitable for a specified purpose. Lower Torso. The area of body below the waist including the legs but excluding the...