UNI EN 12952-8 : 2004

Foreword
1 Scope
  1.1 Firing systems
  1.2 Fuels
  1.3 Operation
2 Normative references
3 Terms and definitions
4 Fuel supply
  4.1 General
  4.2 Fuel transfer and preparation
  4.3 Fuel lines
  4.4 Safety shut-off devices (Safety trip valves)
5 Equipment for air supply and flue gas discharge
  5.1 Air supply
  5.2 Air/fuel ratio
  5.3 Flue gas discharge
6 Firing system
  6.1 Burners
  6.2 Flue gas recirculation
  6.3 Control and monitoring
  6.4 Electrical equipment
  6.5 Safety precautions
  6.6 Common stack for several firing systems
7 Operating manual
8 Particular requirements for firing systems burning gaseous
  fuels with high relative density
  8.1 Main firing systems
  8.2 Ignition burner systems
Annex A (normative) Chemical recovery boiler (black liquor
         boiler)
      A.1 General
      A.2 Additional requirements for the firing system for
          black liquor in the chemical recovery boiler
      A.3 Special requirements for oil- or gas-firing for
          chemical recovery boilers
Annex B (informative) Operational requirements for permanent
         supervised firing systems for liquid and gaseous fuels
      B.1 General
      B.2 Operation
      B.3 Fuel preparation
      B.4 Safety shutoff devices
      B.5 Air/fuel ratio
      B.6 Modification of firing, burner or air/fuel
           ratio setting
      B.7 Control and monitoring
      B.8 Purging, start-up and shut down
      B.9 Emergency operation
      B.10 Operating and maintenance instructions
      B.11 Firing systems burning gaseous fuels with relative
           density
Annex ZA (informative) Clauses of this European Standard
         addressing essential safety requirements or other
         provisions of the Pressure Equipment Directives
Bibliography

This part of European Standard 12952 specifies requirements, for oil and gas firing systems of steam and hot water generators.