Standard System for the Identification of the Hazards of Materials for Emergency Response; NFPA 704, 2022 Edition.

NFPA, including Robert A Michaels, et al. Standard System for the Identification of the Hazards of Materials for Emergency Response; NFPA 704, 2022 Edition. Quincy, Massachusetts; National Fire Protection Association (NFPA), Technical Committee on Classification and Properties of Hazardous Chemicals Data, 38 pages, 2020;