NEN EN 203-1 : 2014 C1 2016

      Committees Responsible
      National Foreword
      Foreword
1 General
      1.1 Scope
      1.2 Normative references
      1.3 Definitions
      1.4 Classification
2 Constructional requirements
      2.1 General
      2.2 Special requirements for components in the gas
             circuit
      2.3 Particular requirements
3 Performance requirements
      3.1 General
      3.2 Soundness
      3.3 Obtaining the gas rate
      3.4 Operational safety
      3.5 Auxiliary equipment
      3.6 Combustion
      3.7 Particular requirements
4 Test conditions
      4.1 General
      4.2 Soundness
      4.3 Obtaining the gas rates
      4.4 Operational safety
      4.5 Auxiliary equipment
      4.6 Combustion
      4.7 Particular tests
5 Designation
6 Marking
      6.1 Marking on the appliance
      6.2 Instructions
      6.3 Marking packaging
Annex A (informative) National situations
Annex B (informative) Guidelines for extension to other
                      categories
Annex C (informative) Identification of conformity of EN 203-1
                      to the essential requirements of the Gas
                      Appliance Directive
Annex D (informative) Trilingual list of appliances entering
                      into the scope of EN 203-1
Figure 1 - Apparatus for testing soundness
Figure 2 - Test on an appliance of type B11 and B11BS under
           abnormal draught conditions
Figure 3 - Combustion test - Sampling hood for pan sizes 22cm
           to 34cm
Figure 4 - Combustion test - Sampling hood for pan sizes 38cm
           to 50cm
Figure 5 - Characteristics of the pans needed for the tests
Figure 6 - Equipment for wind testing
Figure 7 - Arrangement of the equipment for wind testing
Figure 8 - Combustion products evacuation safety device
Figure 9 - Sampling of combustion products by rings -
           Principles of construction
Figure 10 - Sampling probe for appliances with a mitre
Figure 11 - Sampling probe for appliance of Type A and B with
            a chimney
Table 1 - Classification of gases
Table 2 - Maximum shut-down times in relation to the blockage
Table 3 - Test gases corresponding to the appliance categories
Table 4 - Characteristics of the test gases: dry gas at
          15degreeC and 1013,25mbar
Table 5 - Calorific values of test gases of the third family
Table 6 - Test pressures
Table 7
Table A.1.1 - Single categories marketed
Table A.1.2 - Dual categories marketed
Table A.2 - Normal supply pressures
Table A.3 - Test gases corresponding to the nationally or
            locally marketed categories
Table A.4.1 - Test gases corresponding to national or local
              situations: dry gas, at 150degreeC and
              1013,25mbar
Table A.4.2 - Percentage of CO2 (dry neutral combustion
              products)
Table A.5 - Types of connection used in various countries
Table A.6 - Diameters of flues used in various countries
Table C.1 - Symbolization of gas nature
Annex ZA (informative) Clauses of this European Standard
                       EN 203-1/A2 addressing essential
                       requirements or other provisions of
                       EU Directives
National Annex NA (informative) Committees Responsible
National Annex NB (informative) Cross-References

Defines the general requirements and the constructional and operating characteristics relating to safety), marking, and the associated test methods for gas heated commercial catering and bakery appliances.