NFPA 704:2022

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Application. 1.4 Retroactivity. 1.5 Equivalency. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. Chapter 4 General 4.1 Description. 4.2 Assignment of Ratings. 4.3 Location of Signs. Chapter 5 Health Hazards 5.1 General. 5.2 Degrees of Hazard. Chapter 6 Flammability Hazards 6.1Chapter 8 Special Hazards 8.1 General. 8.2 Symbols. Chapter 9 Identification of Materials by Hazard Rating System 9.1 Symbol Arrangement. Annex A Explanatory Material Annex B Health Hazard Rating Annex C Flammability Annex D Combustible Dusts Annex E Instability, Thermal Hazard Evaluation Techniques Annex F Water Reactivity Identification Criteria Annex G Comparison of NFPA704Numerical Hazard Rating with OSHA’s Hazard Classification System Annex H Sample NFPA704 Placard Information for Use in Safety Publications Annex I Informational References General. 6.2 Degrees of Hazard. 6.3 Aerosols. Chapter 7 Instability Hazards 7.1 General. 7.2 Degrees of Hazard.Chapter 8 Special Hazards 8.1 General. 8.2 Symbols. Chapter 9 Identification of Materials by Hazard Rating System 9.1 Symbol Arrangement. Annex A Explanatory Material Annex B Health Hazard Rating Annex C Flammability Annex D Combustible Dusts Annex E Instability, Thermal Hazard Evaluation Techniques Annex F Water Reactivity Identification Criteria Annex G Comparison of NFPA704Numerical Hazard Rating with OSHA’s Hazard Classification System Annex H Sample NFPA704 Placard Information for Use in Safety Publications Annex I Informational References

This standard shall address the health, €ammabil‐ ity, instability, and related hazards that are presented by shortterm, acute exposure to a material under conditions of „re, spill, or similar emergencies.