Foreword
1 Scope
2 Normative references
3 Terms and definitions
3.1 Appliance and its constituent parts
3.2 Adjusting, control and safety devices
3.3 Operation of the appliance
3.3.1 Heat input
3.4 Gases
3.5 Conditions of operation and measurement
3.6 Country of destination
4 Classification of appliances
4.1 Classification of gases according to the nature of
the gases used (categories)
4.2 Classification according to the gases capable of
being used
4.3 Classification according to the mode of evacuation
of the combustion products
5 Constructional requirements
5.1 General
5.2 Requirements for adjusting, control and safety devices
5.3 Ignition devices
5.4 Main burner
5.5 Pressure test points
5.6 Injectors
6 Operational requirements
6.1 Soundness of the gas circuit
6.2 Heat inputs
6.3 Limiting temperatures
6.4 Ignition, cross-lighting and flame stability
6.5 Flame supervision devices
6.6 Pressure regulator
6.7 Combustion
6.8 Prolonged performance
6.9 Measurement of oxides of Nitrogen, NO[x]
7 Test methods
7.1 General
7.2 Safety of operation
7.3 Other pollutants
8 Marking and instructions
8.1 Marking of the appliance and the packaging
8.2 Instructions
8.3 Presentation
Annex A (informative) National situations
A.1 General
A.2 Categories listed in the body of the standard and
marketed in different countries
A.3 Appliance supply pressures corresponding to the
categories given in A.2
A.4 Special categories marketed nationally or locally
A.5 Test gases corresponding to the special categories
given in A.4
A.6 Gas connections in the various countries
Annex B (informative) Equivalence rules
B.1 Conversion to categories within a restricted
Wobbe index range
B.2 Conversion to categories within an identical
Wobbe index range
B.3 Conversion to categories within a wider Wobbe
index range
Annex C (informative) Identification of the types of gas in
use in the various countries
Annex D (normative) Special national conditions
D.1 General
D.2 Belgium
D.3 Italy
Annex E (informative) Example of calculation of the weighting
factors for an appliance with several rates
E.1 Appliance rates
E.2 Weighting of Q[pi,%] = 20
E.3 Weighting of Q[pi,%] = 40
E.4 Weighting of Q[pi,%] = 60
E.5 Weighting of Q[pi,%] = 70
E.6 Total weighting
Annex F (informative) Calculation of conversions of NO[x]
F.1 NO[x] emission conversion factors
F.2 NO[x] conversion calculation
Annex G (informative) National situations of countries whose
national bodies are CEN associate members
Annex ZA (informative) Clauses of this European Standard
addressing essential requirements or other
provisions of EU Directives
Bibliography