NFPA 484: Standard for Combustible Metals

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Look to new NFPA 484 for advanced fire and explosion safety around all types of combustible metals and metal dusts.

Reflecting the latest research, testing, and fire experience, the 2015 edition of NFPA 484: Standard for Combustible Metals presents widely accepted safety requirements for any metal that meets the definition of a combustible metal in NFPA 484 -- including alkali metals, aluminum, hafnium, magnesium, niobium, tantalum, titanium, and zirconium. NFPA 484 addresses the production, processing, finishing, handling, storage, use and recycling of all metals and alloys that are in a form capable of combustion or explosion.

Make sure you know about proper dust capture or collection, housekeeping, and identification of potential ignition sources.

Compliance with the latest edition of NFPA 484 is critical, as fire and explosion hazards are potentially present from operations involving production, processing, finishing, handling, recycling, storage, and use of all metals and alloys that are in a form that is capable of combustion or explosion. In addition, operations where metal or metal alloys are subjected to processing or finishing operations can produce combustible powder or dust are covered by this Standard.

The 2015 NFPA 484 is updated and reorganized for easier referencing:

  • Common requirements for all metal types -- such as PPE, management of change, dust collection, ignition sources, and hazard analysis -- formerly in Chapters 11 through 18 -- have been moved into fundamental Chapters 4 through 9.
  • Chapter 4 has revised procedures concerning material characterization and determining combustibility and explosibility for metal dusts. Use of either test data or historical data is now permitted.
  • Chapter 5 has new requirements for management systems elements, such as management of change, hazard analysis, and PPE.
  • Chapter 7 establishes a threshold for fugitive dust accumulations, which is then used to trigger specific requirements related to dust hazard control.
  • Renamed Chapter 8: Ignition Sources addresses the control of ignition sources such as hot work, smoking, spark-resistant tools, static electricity and friction hazards. It also still addresses electrical area classification.

Developed in response to fires where fire suppression water was used inappropriately, NFPA 484 is critical to fire safety.

Everyone involved with facility fire safety or fire prevention and protection where combustible metals and/or combustible metal dusts are located, needs the latest edition of NFPA 484. (Softbound, Approx. 163 pp., 2015)

NFPA<sup>®</sup> 484 Standard for Combustible Metals 2015 Edition

NFPA® 484 Standard for Combustible Metals 2015 Edition

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 Determination of the Combustibility or Explosibility of a Metal, Metal Powder, or Metal Dust
4.1 Overview
4.2 Basic Material Characterization
4.3 Determination of Combustibility
4.4 Determination of Explosibility
4.5 Use of Test Data for Hazard Analysis
4.6 Determination of Flash Fire Potential. (Reserved)
4.7 Risk Evaluation
4.8 Compliance Options
Chapter 5 General
5.1 Management of Change
5.2 Hazard Analysis
5.3 Personal Protective Equipment (PPE)
5.4 Dust Explosion and Flash-Fire Hazard Areas
5.5 Segregation, Separation, or Detachment to Limit Dust Hazard Areas
Chapter 6 Fire Prevention, Fire Protection, and Emergency Response
6.1 Applicability
6.2 Fire Prevention
6.3 Fire Protection
6.4 Emergency Response
6.5 Emergency Preparedness
Chapter 7 Housekeeping
7.1 Retroactivity
7.2 Housekeeping Plan
7.3 Cleanup Procedures for FugitiveDust Accumulations
7.4 Cleanup of Spilled Dust, Fine or Powder
7.5 Vacuum Cleaning
7.6 Compressed Air Cleaning Requirements
7.7 Water-Cleaning Requirements
7.8 Cleaning Frequency
7.9 General Precautions
Chapter 8 Control of Ignition Sources
8.1 Retroactivity
8.2 Hot Work
8.3 Smoking
8.4 Spark-Resistant Tools
8.5 Static Electricity
8.6 Control of Friction Hazards
8.7 Electrical Power and Control
8.8 Electrical Area Classification
8.9 Powered Industrial Trucks
8.10 Propellant-Actuated Tools
Chapter 9 Dust Collection
9.1 General
9.2 Pneumatic Conveying of Powder
9.3 Powder Collection
9.4 Dust Collection
9.5 Vacuum Cleaning Systems
Chapter 10 Performance-Based Design Option
10.1 General Requirements
10.2 Design Objectives
10.3 Performance Criteria
10.4 Design Scenarios
10.5 Evaluation of Proposed Design
10.6 Retained Prescriptive Requirements
Chapter 11 Alkali Metals
11.1 General Provisions
11.2 Facility Design Requirements
11.3 Primary Metal Production
11.4 Powder Production. (Reserved)
11.5 End Users of Powder. (Reserved)
11.6 Processing and Handling
11.7 Machining, Fabrication, Finishing, and Media Blasting
11.8 Storage and Handling
11.9 Fire and Explosion Protection
11.10 Other. (Reserved)
Chapter 12 Aluminum
12.1 General Provisions
12.2 Facility Design Requirements
12.3 Primary Metal Production
12.4 Aluminum Powder Production
12.5 End Users of Powder
12.6 Processing
12.7 Machining, Fabrication, Finishing, and Media Blasting
12.8 Storage and Handling
12.9 Fire and Explosion Protection
12.10 Other. (Reserved)
Chapter 13 Magnesium
13.1 General Provisions
13.2 Facility Design Requirements
13.3 Primary Metal Production
13.4 Powder Production
13.5 End Users of Powder. (Reserved)
13.6 Processing
13.7 Machining, Fabrication, Finishing, and Media Blasting
13.8 Storage and Handling
13.9 Fire and Explosion Prevention
13.10 Other. (Reserved)
Chapter 14 Niobium
14.1 General Provisions
14.2 Facility Design Requirements
14.3 Primary Metal Production
14.4 Niobium Powder Production for Primary Producers
14.5 End Users of Niobium Powder
14.6 Processing and Handling
14.7 Machining, Fabrication, Finishing, and Media Blasting
14.8 Storage and Handling
14.9 Fire and Explosion Protection
14.10 Other. (Reserved)
Chapter 15 Tantalum
15.1 General Provisions
15.2 Facility Design Requirements
15.3 Primary Metal Production
15.4 Powder Production
15.5 End Users of Powder
15.6 Processing and Handling. (Reserved)
15.7 Machining, Fabrication, Finishing, and Media Blasting
15.8 Storage and Handling
15.9 Fire and Explosion Prevention
15.10 Other. (Reserved)
Chapter 16 Titanium
16.1 General Provisions
16.2 Facility Design Requirements
16.3 Primary Metal Production
16.4 Powder Production
16.5 End Users of Powders. (Reserved)
16.6 Processing and Handling
16.7 Machining, Fabrication, Finishing, and Media Blasting
16.8 Storage and Handling
16.9 Fire and Explosion Prevention
16.10 Other. (Reserved)
Chapter 17 Zirconium and Hafnium
17.1 General Provisions
17.2 Facility Design Requirements
17.3 Primary Metal Production
17.4 Powder Production
17.5 End Users of Powders. (Reserved)
17.6 Processing and Handling. (Reserved)
17.7 Machining, Fabrication, Finishing, and Media Blasting
17.8 Storage and Handling
17.9 Fire and Explosion Prevention
17.10 Other. (Reserved)
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 Explosibility of Magnesium Dust
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