Where approved by the fire code official, use of the following hazardous materials prohibited by Table 5003.1.1(1) in buildings not equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1, shall be allowed within a laboratory control area at 25 percent of Table 5003.1.1(1) limits for buildings equipped throughout with an automatic sprinkler system.
Additional quantity increases shall be prohibited, and such materials shall be stored in accordance with all of the following:
- Use shall be within an approved chemical fume hood listed in accordance with UL 1805, or in an inert atmosphere glove box in accordance with NFPA 45, Section 7.11, or other approved equipment designed for the specific hazard of the material.
- Combustible materials shall be kept not less than 2 feet (610 mm) away from the work area, except for those items directly related to the research.
- A portable fire extinguisher appropriate for the specific material shall be provided within 20 feet (6096 mm) of the use in accordance with Section 906.