NEN EN 13203-1 : 2015

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General test conditions
  4.1 Reference conditions
  4.2 Measurement uncertainties
  4.3 Test conditions
      4.3.1 General
      4.3.2 Test room
      4.3.3 Water supply
      4.3.4 Steady state
      4.3.5 Initial adjustment of the appliance
      4.3.6 Initial state conditions
      4.3.7 Electrical supply
5 Characterisation of the domestic hot water function
  of appliances
  5.1 General
  5.2 Characterisation according to the domestic hot
      water rates
      5.2.1 Specific rate
      5.2.2 Tapping capability
      5.2.3 Classification according to the quantity of
            available domestic hot water
  5.3 Classification according to the quality of the
      domestic hot water produced
      5.3.1 Classification procedure
      5.3.2 Test for classification according to the
            performance in delivery of domestic hot water
            production
6 Information
Annex A (informative) Test conditions
Annex B (informative) Test rig and measurement devices
Bibliography

Pertains to gas-fired appliances producing domestic hot water.