NFPA 61B : 1989

Chapter 1 General
1.1 Scope
1.2 Purpose
1.3 Existing Facilities
1.4 Definitions
Chapter 2 Construction Requirements
2.1 General Requirements
2.2 Interior Surfaces
2.3 Wall Construction
2.4 Roof Construction
2.5 Bins and Tanks
2.6 Stairs, Elevators, and Manlifts
2.7 Marine Towers
Chapter 3 Ventilation, Venting, and Aeration
3.1 General
3.2 Venting of Bins and Tanks
Chapter 4 Explosion Relief and Venting
4.1 Scope
4.2 Requirements for Enclosures
4.3 Requirements for Equipment
Chapter 5 Equipment
5.1 Elevator Legs
5.2 Processing Machinery
5.3 Clutches and Drive Belts
5.4 Screw Conveyors and En Masse-Type Conveyors
5.5 Bearings
5.6 Spouts and Throw of Grain
Chapter 6 Grain Dryers
6.1 General
6.2 Location
6.3 Construction
6.4 Air Heating Systems
6.5 Safety Controls
6.6 Dryer Operation
6.7 Fire Protection
Chapter 7 Heated Devices and Processes
7.1 Heat Transfer Systems
7.2 Comfort Heating
Chapter 8 Dust Control
8.1 Dust Emissions
8.2 Dust Collection Systems
Chapter 9 Fire Protection
9.1 Standpipe and Hose
Chapter 10 Fumigation
10.1 Definitions
10.2 Regulatory Usage
10.3 Fire Hazards
10.4 Fire and Explosion Protection
10.5 Storage and Handling
10.6 Hazard Warning
Chapter 11 Supplemental Requirements
11.1 Electrical Wiring and Equipment
11.2 Cutting and Welding
11.3 Smoking
11.4 Miscellaneous Storage
11.5 Storage of Oils, Flammable Liquids, and LP-Gas
Chapter 12 Supplemental Miscellaneous Requirements
12.1 Dryer Operation
12.2 Removal of Static Dust
12.3 Dust Collection System
12.4 Fire Protection
12.5 Cutting and Welding
12.6 Propellant Actuated Tools
12.7 Engine and Motor Driven Equipment
12.8 Smoking
Chapter 13 Referenced Publications
Appendix A
Appendix B Supplementary Information on Fire Protection
Appendix C Employee Health and Safety
Appendix D Referenced Publications
Index

Outlines updated practices to prevent dust explosions and to minimize damage if an explosion should occur.