Already a subscriber?
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
NFPA 77: Recommended Practice on Static Electricity, 2024
- Important Notices and Disclaimers
- Additional Important Notices and Disclaimers
- Chapter 1 Administration [Go to Page]
- 1.1 Scope.
- 1.2 Purpose.
- 1.3 Application. (Reserved)
- 1.4 Equivalency.
- 1.5 Symbols, Units, and Formulas.
- Chapter 2 Referenced Publications [Go to Page]
- 2.1 General.
- 2.2 NFPA Publications.
- 2.3 Other Publications.
- 2.4 References for Extracts in Recommendations Sections.
- Chapter 3 Definitions [Go to Page]
- 3.1 General.
- 3.2 NFPA Official Definitions.
- 3.3 General Definitions.
- Chapter 4 Units and Symbols of Measure [Go to Page]
- 4.1 Units. (Reserved)
- 4.2 Symbols.
- Chapter 5 Fundamentals of Static Electricity [Go to Page]
- 5.1 General.
- 5.2 Separation of Charge by Contact of Materials.
- 5.3 Charging by Induction.
- 5.4 Accumulation and Dissipation of Charge.
- 5.5 Discharge of Static Electricity and Ignition Mechanisms.
- Chapter 6 Evaluating Static Electricity Hazards [Go to Page]
- 6.1 General.
- 6.2 Measuring a Static Electric Charge.
- 6.3 Measuring the Charge on a Conductor.
- 6.4 Measuring the Charge on a Nonconductor.
- 6.5 General Practices.
- 6.6 Measuring the Accumulation and Relaxation of Charge.
- 6.7 Measuring the Resistivity of Materials.
- 6.8 Assessment of Conduction Paths.
- 6.9 Measuring Spark Discharge Energies.
- 6.10 Measuring Ignition Energies.
- Chapter 7 Control of Static Electricity and Its Hazards by Process Modification and Grounding [Go to Page]
- 7.1 General.
- 7.2 Relocation.
- 7.3 Charge Dissipation.
- 7.4 Control of Generation of Static Electric Charge.
- 7.5 Control of Ignitible Mixtures in Equipment.
- Chapter 8 Control of Static Electricity and Its Hazards by Static Eliminators and Personnel Factors [Go to Page]
- 8.1 Charge Neutralization by Ionization of Air.
- 8.2 Control of Static Electric Charge on Personnel.
- 8.3 Maintenance and Testing.
- 8.4 Discomfort and Injury.
- Chapter 9 Ignitible (Flammable and Combustible) Liquids and Their Vapors [Go to Page]
- 9.1 General.
- 9.2 Combustion Characteristics of Liquids, Vapors, and Mists.
- 9.3 Generation and Dissipation of Static Electric Charge in Liquids.
- Chapter 10 Fluid Flow in Piping, Hose, Tubing, and Filters [Go to Page]
- 10.1 Metal Piping Systems.
- 10.2 Nonconductive Pipe and Lined Pipe.
- 10.3 Flexible Hose and Tubing.
- 10.4 Fill Pipes.
- 10.5 Filtration.
- 10.6 Suspended Material.
- 10.7 Miscellaneous Line Restrictions.
- Chapter 11 Static Electricity Hazards of Liquids in Containers [Go to Page]
- 11.1 Portable Tanks, Intermediate Bulk Containers (IBCs), and Non-Bulk Containers.
- 11.2 Cleaning of Containers.
- Chapter 12 Static Electricity Hazards of Liquids in Bulk Storage Tanks and in Tank Vehicles [Go to Page]
- 12.1 Storage Tanks.
- 12.2 Loading of Tank Vehicles.
- 12.3 Vacuum Trucks.
- 12.4 Railroad Tank Cars.
- 12.5 Marine Vessel and Barge Cargo Tanks.
- 12.6 Aircraft Fuel Tanks (Refuelers). (Reserved)
- Chapter 13 Static Electric Hazards of Process Vessels and Tanks [Go to Page]
- 13.1 General.
- 13.2 Procedures for Transfer to Tanks.
- 13.3 Agitation.
- 13.4 Process Vessels with Nonconductive Linings.
- 13.5 Adding Solids.
- 13.6 Mixing Solids.
- 13.7 Nonconductive Process Vessels.
- 13.8 Gauging and Sampling.
- 13.9 Cleaning Vessels and Tanks.
- 13.10 Vacuum Cleaning.
- 13.11 Clean Gas Flows.
- Chapter 14 Reserved
- Chapter 15 Powders and Dusts [Go to Page]
- 15.1 General.
- 15.2 Combustibility of Dust CloudsDusts.
- 15.3 Mechanisms of Static Electric Charging.
- 15.4 Retention of Static Electric Charge.
- 15.5 Discharges in Powder Operations.
- 15.6 Pneumatic Transport Systems.
- 15.7 Flexible Hose.
- 15.8 Flexible Boots and Socks.
- 15.9 Fabric Filters.
- 15.10 Hybrid Mixtures.
- 15.11 Manual Addition of Powders to Flammable Liquids (Class I Liquids, as Designated by NFPA 30).
- 15.12 Bulk Storage.
- Chapter 16 Intermediate Bulk Containers (IBCs) for Powders [Go to Page]
- 16.1 General.
- 16.2 Types of Discharge.
- 16.3 Granular MaterialMaterials.
- 16.4 Conductive Intermediate Bulk Containers (IBCs).
- 16.5 Nonconductive Intermediate Bulk Containers (IBCs).
- 16.6 Flexible Intermediate Bulk Containers (FIBCs).
- Chapter 17 Web and Sheet Processes [Go to Page]
- 17.1 General.
- 17.2 Substrates.
- 17.3 Inks and Coatings.
- 17.4 Processes.
- 17.5 Control of Static Electricity in Web Processes.
- 17.6 Identifying Static Charging Sources.
- 17.7 Static Control Best Practices.
- 17.8 Maintaining Static Control.
- Chapter 18 Miscellaneous Applications [Go to Page]
- 18.1 Spray Application Processes.
- 18.2 Belts and Conveyors.
- 18.3 Explosives.
- 18.4 Plastic Sheets and Wraps.
- Annex A Explanatory Material
- Annex B Physical Characteristics of Materials
- Annex C Additional Information on Flash Point
- Annex D Additional Information on Vapor Pressure
- Annex E Additional Information on Charge Relaxation
- Annex F Additional Information on Conductivity
- Annex G Means for Bonding and Grounding
- Annex H Glossary of Terms
- Annex I Informational References [Go to Page]