ONORM EN 1443 : 2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation and other essential information
  4.1 General
  4.2 Temperature classes
  4.3 Pressure classes
  4.4 Condensate resistance classes
  4.5 Corrosion resistance classes
  4.6 Sootfire resistance classes
  4.7 Distance to combustible material
  4.8 Thermal resistance
  4.9 Freeze-thaw resistance
  4.10 Resistance to fire
       4.10.1 Internal to external
       4.10.2 External to external
  4.11 Designation
  4.12 Essential additional information
5 Dimensions, shape and tolerances
6 Requirements
  6.1 General
  6.2 Mechanical resistance and stability
  6.3 Thermal behaviour
      6.3.1 Heat resistance
      6.3.2 Sootfire resistance
      6.3.3 Resistance to fire
      6.3.4 Reaction to fire
  6.4 Hygiene, health and environment
      6.4.1 Gastightness
      6.4.2 Water vapour diffusion resistance and condensate
            resistance
      6.4.3 Corrosion resistance
  6.5 Safety in use
  6.6 Energy economy and heat reduction
  6.7 Additional criteria for chimney operation
      6.7.1 Apertures for cleaning and inspection
      6.7.2 Water penetration
      6.7.3 Aerodynamic properties of terminal
      6.7.4 Condensate collection and removal
      6.7.5 Flow resistance
7 Marking, labelling and instruction
  7.1 General
  7.2 Chimney component
  7.3 Chimney
  7.4 Product information
8 Evaluation of conformity
Annex A (informative) Relevance of performance requirements to
        system chimneys and custom-built chimneys related to
        test methods or prior knowledge
Annex B (informative) Characteristics for chimneys
Bibliography

Describes general requirements and the basic performance criteria and specifies limit values where appropriate for chimneys (including connecting flue pipes and their fittings) used to convey the products of combustion from heating appliances to the outside atmosphere.