NFPA 85C : 1991

Foreword
Chapter 1 - Introduction
1-1 Scope
1-2 Purpose
Chapter 2 - General
2-1 Furnace explosions
2-2 Furnace implosions
2-3 Manufacture, design, and engineering
2-4 Installation
2-5 Coordination of design, construction, and operation
2-6 Maintenance organization
2-7 Basic operating objectives
Chapter 3 - Definitions
3-1 Definitions
Chapter 4 - Equipment requirements
4-1 Structural design
4-2 Fuel burning system
4-3 Burner management system logic
4-4 Flame monitoring and tripping systems
4-5 Combustion control system
4-6 Power supplies
4-7 Operating information
Chapter 5 - Furnace implosion protection
5-1 General
5-2 Furnace pressure control systems (implosion
     protection)
5-3 Sequence of operations
5-4 Interlock system
5-5 Alarm system
Chapter 6 - Fuel gas systems
6-1 General
6-2 Gas firing - special problems
6-3 System requirements
6-4 Flame monitoring and tripping system
6-5 Sequence of operations
6-6 Interlock system
6-7 Alarm system
6-8 Boiler front control (supervised manual)
6-9 Two-burner systems - single fuel flow control
Chapter 7 - Fuel oil systems
7-1 General
7-2 Oil firing - special problems
7-3 System requirements
7-4 Flame monitoring and tripping system
7-5 Sequence of operations
7-6 Interlock system
7-7 Alarm system
7-8 Boiler front control (supervised manual)
7-9 Two-burner systems - single fuel flow control
Chapter 8 - Pulverised coal systems
8-1 General
8-2 Coal firing - special problems
8-3 System requirements
8-4 Flame monitoring and tripping system
8-5 Sequence of operations
8-6 Interlock system
8-7 Alarm system
Chapter 9 - Maintenance, inspection, training, and
            safety
9-1 Maintenance and equipment inspection
9-2 Training
Chapter 10 - Referenced publications
Appendix A
Appendix B - Cross-reference of sections between
             documents
Appendix C - Referenced publications
Index

Provides requirements for the design, installation, operation and maintenance of specified boiler furnaces, their fuel burning systems, and related control equipment. Applicable to boilers with fuel input of 12,500,000 Btuh (3663 Kw) or greater that use multiple burners firing fuel gas, fuel oil, or pulverized coat. Intended to prevent boiler explosions, implosions and other combustible hazards. Contains the criteria previously found in NFPA 85B, 85D, 85E and 85G.