S.D. Admin. R. 44:75:13:25
A facility shall ensure its ducts are constructed of iron, steel, aluminum, or other approved metal or materials as defined in NFPA 101 Life Safety Code 2012 edition, section 32.3.6.2.1. Duct linings, coverings, vapor barriers, and the adhesives used for applying them must have a flame spread index of not more than twenty-five and a smoke emission rating of not more than fifty using ASTM E84-23D, 2010 edition, Standard Test Method for Surface Burning Characteristics of Building Materials. A fire and smoke damper must be provided on each opening through each required two-hour or greater fire-resistive wall or floor and on each opening through the walls of a vertical shaft, unless the shaft has a fire and smoke damper at the floor level. Access for maintenance must be provided at all dampers. Duct systems serving hoods must be constructed of corrosion resistant material. Duct systems serving hoods in which highly radioactive materials and strong oxidizing agents are used must be constructed of stainless steel for a minimum distance of ten feet, or 3.05 meters, from the hood and must be equipped with washdown facilities. Each cold air duct must be insulated wherever necessary to maintain the efficiency of the system or to minimize condensation problems.
S.D. Admin. R. 44:75:13:25
General Authority: SDCL 34-12-13.
Law Implemented: SDCL 34-12-13.
ASTM E84-23D, 2010 edition, Standard Test Method for Surface Burning Characteristics of Building Materials. Copies may be obtained at https://www.astm.org/e0084-23d.html. Cost: $119.00. NFPA 101 Life Safety Code, 2012 edition, National Fire Protection Association. Copies may be obtained at https://www.nfpa.org/product/nfpa-101-code/p0101code?Edition=2012&Language=English&Format=Softbound&type=digital. Cost: $150.50.