This standard defines minimum design and performance specifications for fire rated rolling door assemblies in commercial and industrial applications, consisting of assembled, interlocking slats of steel or stainless steel. Refer to individual manufacturer's listings. This standard for fire rated rolling door assemblies is intended to cover commercial and industrial type warehouses, factories and other facilities where a service counter fire door, fire shutter or fire door is required to close an opening in a firewall during an emergency. Rolling fire doors intended for frequent use should be designed for high cycle operation. Refer to section 13.1.2. This standard is not intended to cover doors used for egress passage, nor other types of doors such as rigid, folding or multi-leaf sectional type doors, coiling doors without interlocking slats (sheet doors), perforated slat construction or special applications.