South Dakota Administrative Rules
Title 61 - Department of Public Safety
Article 61:15 - Fire safety
Chapter 61:15:07 - Fire safety requirements for school buildings
Section 61:15:07:20 - Laboratories and science rooms

(1) Each laboratory or science room utilizing hazardous chemicals must be separated from each other and from the rest of the building by a minimum of a one-hour fire-resistive separation. Existing construction may be considered as complying, if in the opinion of the fire official, a distinct hazard to life is not found to exist. No separation is required in fully sprinklered buildings;

(2) Each laboratory must contain at least one portable fire extinguisher with a minimum rating of 2A-10BC per 1500 square feet of lab area;

(3) Flammable and combustible liquids and hazardous chemicals must be stored in approved metal storage cabinets or in a storage room constructed of one-hour fire-resistive construction;

(4) Each laboratory and chemical storage room must be provided with mechanical exhaust;

(5) A manual shutoff valve must be provided for LP-gas and other bulk compressed gas systems. A valve must be provided at the point of supply and at each point of use. A valve that is located near the instructors workstation or an emergency valve is acceptable for the required valve located at the point of use; and

(6) The maximum water capacity of individual LP-gas cylinders used for experimentation in educational occupancies shall be 50 lbs. Cylinders not in use may not be stored within the building.