NEN EN 419-2 : 2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification of appliances
  4.1 Classification according to the nature of the gases used
  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 Symbols
6 Requirements for the rational use of energy
7 Test methods
  7.1 General
  7.2 Radiant factor
      7.2.1 General
      7.2.2 Method A
      7.2.3 Method B
Annex A (informative) Recording test data (Test method A)
        A.1 General information to be recorded
        A.2 Measurement results
Annex B (informative) Blank forms (Test method A)
        B.1 Model test result form - Quarter sphere burner end and
            opposite end
        B.2 Model test result form - Quarter cylinders for appliances
            greater than 1,3 m long - Front side and back side
        B.3 Half sphere for appliances less than or equal to
            1,3 m long
Annex C (informative) Worked example (Test method A)
        C.1 Radiant factor - Recorded data and calculation
        C.2 Radiant output - Recorded data and calculation
Annex D (normative) Procedure for measuring the window correction
        factor (F[w]) (Test method A)
Annex E (normative) Correction of measured radiant output for
        absorption by air (Test methods A and B)
        E.1 General
        E.2 Mean beam length (D)
        E.3 Absorption of radiation by water vapour
        E.4 Absorption of radiation by carbon dioxide
        E.5 Total radiation absorption
        E.6 Calculation method
Annex F (informative) Radiant heat output data - Recording of
        results (Test method B)
        F.1 General information to be recorded
            F.1.1 Test and appliance data
            F.1.2 Radiometer technical data
            F.1.3 Measuring plane technical data
        F.2 Measurement results
            F.2.1 Test information
            F.2.2 Test ambient conditions
            F.2.3 Gas/heat input data
            F.2.4 Flue gas data
            F.2.5 Absorption of water vapour and CO[2] data
            F.2.6 Irradiation measurement data
Annex G (informative) Worked example (Test method B)
        G.1 General information
        G.2 Radiometer technical data
        G.3 Measuring plane technical data
        G.4 Measurement results
            G.4.1 Test information
            G.4.2 Test ambient conditions
            G.4.3 Gas/heat input data
            G.4.4 Flue gas data
            G.4.5 Absorption of water vapour and CO[2] data
            G.4.6 Irradiation measurement data
Annex H (informative) Radiometer design (Test method B)
        H.1 Principle radiometer design features
        H.2 Radiometer technical design
        H.3 Pyro-electric detector
Annex I (normative) Radiometer calibration (Test method B)
        I.1 Radiometer calibration
            I.1.1 General
            I.1.2 Black Body calibration method
        I.2 Worked example
Annex ZA (informative) Clauses of this European Standard addressing
         essential requirements or other provisions of EU directives

Describes the requirements and test methods for the rational use of energy of non-domestic gas-fired overhead luminous radiant heaters.