BS EN 521:2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
  4.1 Classification of gases:
  4.2 Classification of appliances:
5 Safety requirements
  5.1 General
  5.2 Conversion to different gases
  5.3 Materials
  5.4 Assembly, cleaning and maintenance
  5.5 Strength and stability
  5.6 Soundness of the gas circuit assembly
  5.7 Connections
  5.8 Transport, fixing and mobility devices
  5.9 Taps
  5.10 Control handles
  5.11 Injectors
  5.12 Ignition devices
  5.13 Flame supervision devices
  5.14 Burners and radiant elements
  5.15 Grids
  5.16 Turnspit
  5.17 Fireguards for heating appliances
  5.18 Locations and compartments for refillable gas
       containers
  5.19 Verification of the heat inputs
  5.20 Resistance to overheating
  5.21 Temperature of various parts of the appliance
  5.22 Temperature of panels (floors, walls or ceilings)
  5.23 Ignition, crosslighting and flame stability
  5.24 Resistance to draught
  5.25 Resistance to liquid spillage
  5.26 Combustion
  5.27 Accumulation of un-burnt gas
  5.28 Safety at high temperature
  5.29 Sooting - Condensation
  5.30 Rational use of energy
6 Test methods
  6.1 General
  6.2 Conversion to different gases
  6.3 Materials
  6.4 Assembly, cleaning and maintenance
  6.5 Strength and stability
  6.6 Soundness of the gas circuit assembly
  6.7 Connections
  6.8 Transport, fixing and mobility devices
  6.9 Taps
  6.10 Control handles
  6.11 Injectors
  6.12 Ignition devices
  6.13 Flame supervision devices
  6.14 Burners and radiant elements
  6.15 Grids
  6.16 Turnspit
  6.17 Fireguards for heating appliances
  6.18 Locations and compartments for refillable
       gas containers
  6.19 Verification of heat inputs
  6.20 Resistance to overheating
  6.21 Temperatures of the various parts of the
       appliance
  6.22 Temperature of panels (floor, wall or ceiling)
  6.23 Ignition, crosslighting and flame stability
  6.24 Resistance to draught
  6.25 Resistance to liquid spillage
  6.26 Combustion
  6.27 Accumulation of un-burnt gases
  6.28 Safety at high temperature
  6.29 Sooting - condensation
  6.30 Rational use of energy
7 Marking
  7.1 Appliance marking
  7.2 Packaging marking
8 Instructions for use, maintenance and assembly
Annex A (normative) Characteristics of test vessels
Annex B (normative) Tests on needle valves
  B.1 Resistance to temperature
  B.2 Endurance
Annex C (informative) Examples of authorized solutions
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements
                       or other provisions of EU Directive
Bibliography

Defines construction and performance characteristics relative to safety and the rational use of energy of portable appliances burning liquefied petroleum gases at the vapour pressure within the gas container. In addition, it specifies test procedures and requirements for marking and information to be given in the instructions.

This European Standard specifies the construction and performance characteristics related to safety and the rational use of energy of portable appliances burning liquefied petroleum gases at the vapour pressure within the gas container. It also defines test methods and the requirements for marking and the information to be given in the instructions. NOTE These appliances are referred to in the body of the text as \'appliances\'. This European Standard applies to various types of portable appliances burning liquefied petroleum gases at vapour pressure and designed to be used with (non refillable) cartridges as complying with EN 417 or any types of gas cylinders other than cartridges. For example the following types of appliances are covered: a) cooking appliances (hotplates, grills, barbecues...). This European Standard does not cover barbecues that can be used indoors; b) lighting appliances; c) heating appliances. This European Standard only applies to appliances with a maximum heat input of up to 3 kW (Hs) for outdoor use only; d) blowlamps. This European Standard only applies to blowlamps without a flexible hose; e) laboratory burners. The requirements apply to these appliances or their functional sections whether or not the latter are independent or incorporated into an assembly. This European Standard only applies to type examination. Appliances covered by this European Standard are not connected to a flue for the discharge of products of combustion and are not connected to the mains electricity supply. This European Standard covers neither appliances supplied with LPG in the liquid phase nor those incorporating a fixed gas reservoir which may or may not be refilled by the user. This European Standard does not cover gas containers or flexible hose. It does not apply to smokers’ lighters covered by EN ISO 9994. Requirements for rational use of energy have been included for hotplate burners. However, such requirements have not been included for the