scope:

This standard shall apply to laboratory buildings, laboratory units, and laboratory work areas whether located above or below grade in which chemicals, as defined, are handled or stored.

This standard shall not apply to the following:

(1)*If conditions (a) and (b) exist, this standard shall not apply:

(a) Laboratory units that contain less than or equal to 4 L (1 gal) of flammable or combustible liquid

(b) Laboratory units that contain less than 2.2 standard m³ (75 scf) of flammable gas, not including piped-in low-pressure utility gas installed in accordance with NFPA 54, National Fuel Gas Code

(2) Laboratories that are pilot plants

(3) Laboratories that handle only chemicals with a hazard rating of zero or one, as defined by NFPA704, Standard System for the Identification of the Hazards of Materials for Emergency Response, for all of the following: health, flammability, and instability

(4) Laboratories that are primarily manufacturing plants

(5) Incidental testing facilities

(6) Physical, electronic, instrument, laser, or similar laboratories that use chemicals only for incidental purposes, such as cleaning

(7) Laboratories that work only with radioactive materials, as covered by NFPA801, Standard for Fire Protection for Facilities Handling Radioactive Materials

(8) Laboratories that work only with explosive material, as covered by NFPA 495, Explosive Materials Code

This standard contains requirements, but not all-inclusive requirements, for handling and storage of chemicals where laboratory-scale operations are conducted and shall not cover the following:

(1) The special fire protection required when handling explosive materials (See NFPA 495, Explosive Materials Code.)

(2) The special fire protection required when handling radioactive materials