BS EN 461:1999

1 Scope
2 Normative References
3 Definitions
4 Classification
      4.1 Classification of gases
      4.2 Classification of appliances
5 Safety and Constructional Requirements
      5.1 General
      5.2 Conversion to different gases
      5.3 Materials
      5.4 Cleaning and maintenance
      5.5 Strength of assembly
      5.6 Soundness of the gas circuit assembly
      5.7 Connections
      5.8 Appliance stability, fixing and mobility
             devices
      5.9 Taps and controls
      5.10 Control handles, knobs and push buttons
      5.11 Injectors
      5.12 Ignition devices
      5.13 Safety devices
      5.14 Appliance ventilation
      5.15 Verification of the heat inputs
      5.16 Effect of light back
      5.17 Temperatures of various parts of the appliance
      5.18 Temperature of the support, walls and adjacent
             surfaces
      5.19 Temperature of taps and components
      5.20 Overheating of the LPG cylinder and, where
             applicable, its compartment
      5.21 Ignition
      5.22 Crosslighting
      5.23 Flame stability
      5.24 Combustion
      5.25 Additional requirements
6 Test Methods
      6.1 General
      6.2 Conversion to different gases
      6.3 Materials
      6.4 Cleaning and maintenance
      6.5 Strength of assembly
      6.6 Soundness of the gas circuit assembly
      6.7 Connections
      6.8 Appliance stability, fixing and mobility devices
      6.9 Taps and controls
      6.10 Control handles
      6.11 Injectors
      6.12 Ignition devices
      6.13 Safety devices
      6.14 Appliance ventilation
      6.15 Verification of the heat input
      6.16 Effect of light back
      6.17 Temperatures of various parts of the appliance
      6.18 Temperatures of the support, walls and adjacent
             surfaces
      6.19 Temperatures of taps and components
      6.20 Overheating of the LPG cylinder and, where
             applicable, its compartment
      6.21 Ignition
      6.22 Crosslighting
      6.23 Flame stability
      6.24 Combustion
      6.25 Additional requirements
7 Marking, Instruction Literature and Packaging
      7.1 General
      7.2 Appliance marking
      7.3 Instructions for use and user maintenance
      7.4 Instructions for adjustment and installation
      7.5 Servicing instructions
      7.6 Packaging
Annex A (informative) Special national conditions
Annex B (normative) Vitiation room (see Figure B.1)
Annex C (informative) Air supply and ventilation
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements or
                       other provisions of EU Directives

Specifies requirements, test procedures and the marking of non-domestic flueless space heaters (including greenhouse and diffusive catalytic combustion heaters) for the purpose of type examination.