NFPA 484:2022

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Application. 1.4 Conflicts. 1.5 Retroactivity. 1.6 Equivalency. 1.7 Units and Formulas. 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 Requirements 4.1 General. 4.2 Objectives. Chapter 5 Hazard Identification — Determination of the Combustibility or Explosibility of a Metal, Metal Powder, or Metal Dust 5.1 Responsibility. 5.2 Overview. 5.3 Basic Material Characterization. 5.4 Determination of Combustibility. 5.5 Determination of Explosibility. 5.6 Use of Test Data for Hazard Analysis. 5.7 Determination of Flash-Fire Potential. (Reserved) 5.8 Organometallic Materials. (Reserved) Chapter 6 Performance-Based Design Option 6.1 General Requirements. 6.2 Design Objectives. 6.3 Performance Criteria. 6.4 Design Scenarios. 6.5 Evaluation of Proposed Design. 6.6 Retained Prescriptive Requirements. Chapter 7 Hazard Analysis 7.1 General Requirements. 7.2 Dust Hazard Analysis (DHA). 7.3 Molten Metal Hazard Analysis. 7.4 Risk Evaluation. 7.5 Dust Explosion and Flash-Fire Hazard Areas. Chapter 8 Management Systems 8.1 Retroactivity. 8.2 General. 8.3 Operating Procedures and Practices. 8.4 Housekeeping. 8.5 Hot Work. 8.6 Personal Protective Equipment (PPE). 8.7 Inspection, Testing, and Maintenance. 8.8 Training and Hazard Awareness. 8.9 Contractors. 8.10 Emergency Planning and Response. 8.11 Incident Investigation. 8.12 Management of Change. 8.13 Documentation Retention. 8.14 Management Systems Review. 8.15 Employee Participation.Chapter 9 Hazard Management: Mitigation and Prevention 9.1 Inherently Safer Designs. 9.2 Building Design. 9.3 Equipment Design. 9.4 Ignition Source Control. 9.5 Pyrophoric Dusts. (Reserved) 9.6 Dust Control. 9.7 Explosion Prevention/Protection. 9.8 Fire Protection. Chapter 10 Fire Prevention, Fire Protection, and Emergency Response 10.1 Retroactivity. 10.2 General. 10.3 Operating Procedures and Practices. 10.4 Fire Prevention. 10.5 Fire Protection. 10.6 Training and Hazard Awareness. 10.7 Emergency Planning/Preparedness and Response. 10.8 Emergency Response. 10.9 Incident Investigation. Chapter 11 Housekeeping 11.1 Retroactivity. 11.2 Applicability. 11.3 Housekeeping Plan. 11.4 Cleanup Procedures for Fugitive Dust Accumulations. 11.5 Cleanup of Spilled Dust, Fine or Powder. 11.6 Vacuum Cleaning. 11.7 Compressed Air Cleaning Requirements. 11.8 Water-Cleaning Requirements. 11.9 Cleaning Frequency.11.10 General Precautions. Chapter 12 Control of Ignition Sources 12.1 Retroactivity. 12.2 Hot Work. 12.3 Control of Friction Hazards. 12.4 Electrical Area Classification. 12.5 Portable Electrical and Electronic Equipment. Chapter 13 Pneumatic Conveying, Dust Collection, and Centralized Vacuum Cleaning Systems 13.1 Retroactivity. 13.2 Dust Collection. 13.3 Centralized Vacuum Cleaning System. 13.4 Portable Vacuum Cleaners. 13.5 Pneumatic Conveying of Powder. 13.6 Powder Collection. Chapter 14 Nanometal Powders 14.1 Retroactivity. 14.2 General. 14.3 Nanoparticle Production Processes. 14.4 Equipment Design and Operation. 14.5 Housekeeping. Chapter 15 Additive Manufacturing 15.1 Retroactivity. 15.2 General Requirements. 15.3 Additive Manufacturing Equipment and Operations. 15.4 Equipment and Object Cleaning. 15.5 Training. 15.6 Emergency Response. Chapter 16 Alkali Metals 16.1 General Provisions.16.2 Facility Design Requirements. 16.3 Primary Metal Production. 16.4 Powder Production. (Reserved) 16.5 End Users of Powder. (Reserved) 16.6 Processing and Handling. 16.7 Machining, Fabrication, Finishing, and Media Blasting. 16.8 Storage and Handling. 16.9 Fire and Explosion Protection. 16.10 Other. (Reserved) Chapter 17 Legacy Metals 17.1 General. 17.2 Facility Design Requirements. 17.3 Primary Metal Production (Smelting). 17.4 Powder Production. 17.5 End Users of Powder. 17.6 Processing and Handling. 17.7 Machining, Fabrication, Finishing, and Media Blasting. 17.8 Storage and Handling. 17.9 Fire and Explosion Prevention. Chapter 18 Other Metals 18.1 General Provisions. 18.2 Facility Design Requirements. 18.3 Primary Metal Production. 18.4 Powder Production. 18.5 End Users of Powder. 18.6 Processing. 18.7 Machining, Fabrication, Finishing, and Media Blasting. 18.8 Storage and Handling. 18.9 Fire and Explosion Prevention.18.10 Other. (Reserved) Chapter 19 Recycling and Waste Management Facilities 19.1 General Provisions. 19.2 Recycling and Waste Management of Combustible Metal — Collection, Storage, and Handling of Fines Generated During Scrap Receiving, Storage, Recycling, and Waste Treatment. 19.3 Storage of Combustible Metals for Recycling and Waste Management. 19.4 Sample Identification and Collection for Metals in a Combustible Form. 19.5 Personal Protective Equipment (PPE). 19.6 Reactivity. 19.7 Management of Change. 19.8 Facility Design Requirements. 19.9 Emergency Preparedness. 19.10 Processing. 19.11 Fire and Explosion Prevention. Annex A Explanatory Material Annex B Electrically Conductive Floors Annex C Supplementary Information on Magnesium Annex D Design for Dust Concentration Control in Ductwork Annex E Supplementary Information on Tantalum Annex F Supplementary Information on Titanium Annex G Supplementary Information on Zirconium Annex H Extinguishing Agents That Should Not Be Used on Lithium Fires Annex I Testing for Detailed Characterization of Explosive Behavior of Materials Annex J Informational References

This standard provides requirements for the production, processing, finishing, handling, recycling, storage, and use of all metals and alloys that are in a form that is capa‐ ble of combustion or explosion.